1
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Gao C, Shukla A, Gao H, Miao Z, Zhang Y, Wang P, Luo G, Zeng Y, Wong WWH, Smith TA, Lo SC, Hu W, Namdas EB, Dong H. Harvesting Triplet Excitons in High Mobility Emissive Organic Semiconductor for Efficiency Enhancement of Light-Emitting Transistors. Adv Mater 2023; 35:e2208389. [PMID: 36639351 DOI: 10.1002/adma.202208389] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Revised: 01/01/2023] [Indexed: 06/17/2023]
Abstract
Organic light-emitting transistors (OLETs), a kind of highly integrated and minimized optoelectronic device, demonstrate great potential applications in various fields. The construction of high-performance OLETs requires the integration of high charge carrier mobility, strong emission, and high triplet exciton utilization efficiency in the active layer. However, it remains a significant long-term challenge, especially for single component active layer OLETs. Herein, the successful harvesting of triplet excitons in a high mobility emissive molecule, 2,6-diphenylanthracene (DPA), through the triplet-triplet annihilation process is demonstrated. By incorporating a highly emissive guest into the DPA host system, an obvious increase in photoluminescence efficiency along with exciton utilization efficiency results in an obvious enhancement of external quantum efficiency of 7.2 times for OLETs compared to the non-doped devices. Moreover, well-tunable multi-color electroluminescence, especially white emission with Commission Internationale del'Eclairage of (0.31, 0.35), from OLETs is also achieved by modulating the doping concentration with a controlled energy transfer process. This work opens a new avenue for integrating strong emission and efficient exciton utilization in high-mobility organic semiconductors for high-performance OLETs and advancing their related functional device applications.
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Affiliation(s)
- Can Gao
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
| | - Atul Shukla
- Centre for Organic Photonics & Electronics, School of Mathematics and Physics, The University of Queensland, Brisbane, QLD, 4072, Australia
| | - Haikuo Gao
- Shandong Engineering Research Center of Aeronautical Materials and Devices, College of Aeronautical Engineering, Binzhou University, Binzhou, 251900, China
| | - Zhagen Miao
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
- School of Chemical Science, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Yihan Zhang
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
- School of Chemical Science, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Pu Wang
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
- School of Chemical Science, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Guiwen Luo
- School of Chemical Science, University of Chinese Academy of Sciences, Beijing, 100049, China
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
| | - Yi Zeng
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
| | - Wallace W H Wong
- ARC Centre of Excellence in Exciton Science, School of Chemistry, Bio21 Institute, The University of Melbourne, Melbourne, VIC, 3010, Australia
| | - Trevor A Smith
- ARC Centre of Excellence in Exciton Science, School of Chemistry, The University of Melbourne, Melbourne, VIC, 3010, Australia
| | - Shih-Chun Lo
- Centre for Organic Photonics and Electronics, School of Chemistry and Molecular Biosciences, The University of Queensland, Brisbane, QLD, 4072, Australia
| | - Wenping Hu
- Tianjin Key Laboratory of Molecular Optoelectronic Science, Department of Chemistry, School of Science, Tianjin University, Tianjin, 300072, China
| | - Ebinazar B Namdas
- Centre for Organic Photonics & Electronics, School of Mathematics and Physics, The University of Queensland, Brisbane, QLD, 4072, Australia
| | - Huanli Dong
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
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2
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Simon PM, Castillo JO, Owyong TC, White JM, Saker Neto N, Wong WWH. Protection of Boronic Acids Using a Tridentate Aminophenol ONO Ligand for Selective Suzuki-Miyaura Coupling. J Org Chem 2023; 88:1590-1599. [PMID: 36695169 DOI: 10.1021/acs.joc.2c02651] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Boronic acid protecting group chemistry powerfully enhances the versatility of Suzuki-Miyaura cross-coupling. Prominent examples include trifluoroborate salts, N-methyliminodiacetic acid (MIDA) boronates, and 1,8-diaminonaphthalene boronamides. In this work, we present a bis(2-hydroxybenzyl)methylamine (BOMA) ligand that forms tridentate complexes with boronic acids much like the MIDA ligand but the deprotection is facilitated by organic acids. The BOMA boronates showed considerable stability in both aqueous base and acid, and a variety of chemoselective reactions were performed on these boronates, including selective Suzuki-Miyaura coupling, palladium-catalyzed borylation, ester hydrolysis, alkylation, lithiation-borylation, and oxidative hydroxydeboronation.
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Affiliation(s)
- Paulo Miguel Simon
- ARC Centre of Excellence in Exciton Science, University of Melbourne, Parkville, Melbourne, Victoria 3010, Australia.,School of Chemistry, Bio21 Institute, University of Melbourne, Parkville, Melbourne, Victoria 3010, Australia
| | - Jonathan O Castillo
- ARC Centre of Excellence in Exciton Science, University of Melbourne, Parkville, Melbourne, Victoria 3010, Australia.,School of Chemistry, Bio21 Institute, University of Melbourne, Parkville, Melbourne, Victoria 3010, Australia
| | - Tze Cin Owyong
- ARC Centre of Excellence in Exciton Science, University of Melbourne, Parkville, Melbourne, Victoria 3010, Australia.,School of Chemistry, Bio21 Institute, University of Melbourne, Parkville, Melbourne, Victoria 3010, Australia
| | - Jonathan M White
- School of Chemistry, Bio21 Institute, University of Melbourne, Parkville, Melbourne, Victoria 3010, Australia
| | - Nicolau Saker Neto
- ARC Centre of Excellence in Exciton Science, University of Melbourne, Parkville, Melbourne, Victoria 3010, Australia.,School of Chemistry, Bio21 Institute, University of Melbourne, Parkville, Melbourne, Victoria 3010, Australia
| | - Wallace W H Wong
- ARC Centre of Excellence in Exciton Science, University of Melbourne, Parkville, Melbourne, Victoria 3010, Australia.,School of Chemistry, Bio21 Institute, University of Melbourne, Parkville, Melbourne, Victoria 3010, Australia
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3
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Crocker RD, Pace DP, Zhang B, Lyons DJM, Bhadbhade MM, Wong WWH, Mai BK, Nguyen TV. Unusual Alternating Crystallization-Induced Emission Enhancement Behavior in Nonconjugated ω-Phenylalkyl Tropylium Salts. J Am Chem Soc 2021; 143:20384-20394. [PMID: 34807589 DOI: 10.1021/jacs.1c10038] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
The alternating physical properties, especially melting points, of α,ω-disubstituted n-alkanes and their parent n-alkanes had been known since Baeyer's report in 1877. There is, however, no general and comprehensive explanation for such a phenomenon. Herein, we report the synthesis and examination of a series of novel ω-phenyl n-alkyl tropylium tetrafluoroborates, which also display alternation in their physicochemical characters. Despite being organic salts, the compounds with odd numbers of carbons in the alkyl bridge exist as room temperature ionic liquids. In stark contrast to this, the analogues with even numbers of carbons in the linker are crystalline solids. These solid nonconjugated molecules exhibit curious photoluminescent properties, which can be attributed to their ability to form through-space charge-transfer complexes to cause crystallization-induced emission enhancement. Most notably, the compound with the highest photoluminescent quantum yield in this series showed an unusual arrangement of carbocationic dimer in the solid state. A combination of XRD analysis and ab initio calculations revealed interesting insights into these systems.
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Affiliation(s)
- Reece D Crocker
- School of Chemistry, University of New South Wales, Sydney, NSW 2052, Australia
| | - Domenic P Pace
- School of Chemistry, University of New South Wales, Sydney, NSW 2052, Australia
| | - Bolong Zhang
- Bio21 Institute and School of Chemistry, University of Melbourne, Parkville, VIC 3010, Australia.,ARC Centre of Excellence in Exciton Science, School of Chemistry, University of Melbourne, Parkville, VIC 3010, Australia
| | - Demelza J M Lyons
- School of Chemistry, University of New South Wales, Sydney, NSW 2052, Australia
| | - Mohan M Bhadbhade
- Mark Wainwright Analytical Centre, University of New South Wales, Sydney, NSW 2052, Australia
| | - Wallace W H Wong
- Bio21 Institute and School of Chemistry, University of Melbourne, Parkville, VIC 3010, Australia.,ARC Centre of Excellence in Exciton Science, School of Chemistry, University of Melbourne, Parkville, VIC 3010, Australia
| | - Binh Khanh Mai
- Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States
| | - Thanh Vinh Nguyen
- School of Chemistry, University of New South Wales, Sydney, NSW 2052, Australia
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4
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Gao C, Wong WWH, Qin Z, Lo SC, Namdas EB, Dong H, Hu W. Application of Triplet-Triplet Annihilation Upconversion in Organic Optoelectronic Devices: Advances and Perspectives. Adv Mater 2021; 33:e2100704. [PMID: 34596295 DOI: 10.1002/adma.202100704] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Revised: 08/06/2021] [Indexed: 06/13/2023]
Abstract
Organic semiconductor materials have been widely used in various optoelectronic devices due to their rich optical and/or electrical properties, which are highly related to their excited states. Therefore, how to manage and utilize the excited states in organic semiconductors is essential for the realization of high-performance optoelectronic devices. Triplet-triplet annihilation (TTA) upconversion is a unique process of converting two non-emissive triplet excitons to one singlet exciton with higher energy. Efficient optical-to-electrical devices can be realized by harvesting sub-bandgap photons through TTA-based upconversion. In electrical-to-optical devices, triplets generated after the combination of electrons and holes also can be efficiently utilized via TTA, which resulted in a high internal conversion efficiency of 62.5%. Currently, many interesting explorations and significant advances have been demonstrated in these fields. In this review, a comprehensive summary of these intriguing advances on developing efficient TTA upconversion materials and their application in optoelectronic devices is systematically given along with some discussions. Finally, the key challenges and perspectives of TTA upconversion systems for further improvement for optoelectronic devices and other related research directions are provided. This review hopes to provide valuable guidelines for future related research and advancement in organic optoelectronics.
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Affiliation(s)
- Can Gao
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
| | - Wallace W H Wong
- ARC Centre of Excellence in Exciton Science, School of Chemistry, Bio21 Institute, The University of Melbourne, Melbourne, Victoria, 3010, Australia
| | - Zhengsheng Qin
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
- School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Shih-Chun Lo
- Centre for Organic Photonics and Electronics, School of Chemistry and Molecular Biosciences, The University of Queensland, Brisbane, Queensland, 4072, Australia
| | - Ebinazar B Namdas
- Centre for Organic Photonics & Electronics, School of Mathematics and Physics, The University of Queensland, Brisbane, Queensland, 4072, Australia
| | - Huanli Dong
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
| | - Wenping Hu
- Tianjin Key Laboratory of Molecular Optoelectronic Science, Department of Chemistry, School of Science, Tianjin University, Tianjin, 300072, China
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5
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Saxena S, Marlow P, Subbiah J, Colsmann A, Wong WWH, Jones DJ. Pyridine End-Capped Polymer to Stabilize Organic Nanoparticle Dispersions for Solar Cell Fabrication through Reversible Pyridinium Salt Formation. ACS Appl Mater Interfaces 2021; 13:36044-36052. [PMID: 34296593 DOI: 10.1021/acsami.1c07219] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Bulk-heterojunction nanoparticle dispersions in water or alcohol can be employed as eco-friendly inks for the fabrication of organic solar cells by printing or coating. However, one major drawback is the need for stabilizing surfactants, which facilitate nanoparticle formation but later hamper device performance. When surfactant-free dispersions are formulated, a strong limitation is imposed by the dispersion concentration due to the tendency of nanoparticles to aggregate. In this work, pyridine end-capped poly(3-hexylthiophene) (P3HT-Py) is synthesized and included as an additive for the stabilization of P3HT:indene-C60 bis-adduct (ICBA) nanoparticle dispersions. In the presence of acetic acid (AcOH), a surface-active pyridinium acetate end-capped P3HT ion pair, P3HT-PyH+AcO-, is formed which effectively stabilizes the dispersion and hence allows the formation of dispersions with smaller nanoparticle sizes and higher concentrations of up to 30 mg/mL in methanol. The dispersions exhibit an enhanced shelf-lifetime of at least 60 days at room temperature. After the deposition of light-harvesting layers from the nanoparticle dispersions, the ion-pair formation is reversed at elevated temperatures leading to regeneration of P3HT-Py and AcOH. The AcOH evaporates from the active layer, while the performance of the corresponding solar cells is not affected by the residual P3HT-Py in the devices. Enhanced nanoparticle stability is achieved with only 0.017 wt % pyridine in the P3HT/ICBA formulation.
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Affiliation(s)
- Sonam Saxena
- School of Chemistry, Bio21 Institute, University of Melbourne, Melbourne 3010, Victoria, Australia
| | - Philipp Marlow
- Material Research Center for Energy Systems, Karlsruhe Institute of Technology (KIT), Strasse am Forum 7, Karlsruhe 76131, Germany
- Light Technology Institute, Karlsruhe Institute of Technology (KIT), Engesserstrasse 13, Karlsruhe 76131, Germany
| | - Jegadesan Subbiah
- School of Chemistry, Bio21 Institute, University of Melbourne, Melbourne 3010, Victoria, Australia
| | - Alexander Colsmann
- Material Research Center for Energy Systems, Karlsruhe Institute of Technology (KIT), Strasse am Forum 7, Karlsruhe 76131, Germany
- Light Technology Institute, Karlsruhe Institute of Technology (KIT), Engesserstrasse 13, Karlsruhe 76131, Germany
| | - Wallace W H Wong
- School of Chemistry, Bio21 Institute, University of Melbourne, Melbourne 3010, Victoria, Australia
| | - David J Jones
- School of Chemistry, Bio21 Institute, University of Melbourne, Melbourne 3010, Victoria, Australia
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6
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Hu Q, Yao B, Owyong TC, Prashanth S, Wang C, Zhang X, Wong WWH, Tang Y, Hong Y. Detection of Urinary Albumin Using a "Turn-on" Fluorescent Probe with Aggregation-Induced Emission Characteristics. Chem Asian J 2021; 16:1245-1252. [PMID: 33759376 DOI: 10.1002/asia.202100180] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2021] [Revised: 03/22/2021] [Indexed: 01/08/2023]
Abstract
Human serum albumin (HSA) is a broadly used biomarker for the diagnosis of various diseases such as chronic kidney disease. Here, a fluorescent probe TC426 with aggregation-induced emission (AIE) characteristics is reported as a sensitive and specific probe for HSA. This probe is non-emissive in aqueous solution, meanwhile it shows bright fluorescence upon interacting with HSA, which makes it applicable in detecting HSA with a high signal to noise ratio. Besides, the fluorescence of TC426 exhibits a high linear correlation with the concentration of albumin in the range of microalbumin (20-200 mg/L), which has a significant importance for the early diagnosis of glomerulus related diseases. Compared with previously reported HSA probes TPE-4TA and BSPOTPE, TC426 shows comparable anti-interference ability towards creatinine and other major components in urine but is excited by a longer excitation wavelength at the visible light range. Finally, with the established assay, TC426 shows excellent performance in detecting HSA in real human urine, indicating its great potential in practical urinalysis.
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Affiliation(s)
- Qi Hu
- Medical Device Research Institute, College of Science and Engineering, Flinders University, South Australia, 5042, Australia
| | - Bicheng Yao
- Department of Chemistry and Physics, La Trobe Institute for Molecular Science, La Trobe University, Victoria, 3086, Australia
| | - Tze Cin Owyong
- Department of Chemistry and Physics, La Trobe Institute for Molecular Science, La Trobe University, Victoria, 3086, Australia.,ARC Centre of Excellence in Exciton Science, School of Chemistry, Bio21 Institute, The University of Melbourne, Victoria, 3010, Australia
| | - Sharon Prashanth
- Medical Device Research Institute, College of Science and Engineering, Flinders University, South Australia, 5042, Australia
| | - Changyu Wang
- Medical Device Research Institute, College of Science and Engineering, Flinders University, South Australia, 5042, Australia
| | - Xinyi Zhang
- Medical Device Research Institute, College of Science and Engineering, Flinders University, South Australia, 5042, Australia.,Australia-China Joint Research Centre for Personal Health Technologies, Flinders University, South Australia, 5042, Australia
| | - Wallace W H Wong
- ARC Centre of Excellence in Exciton Science, School of Chemistry, Bio21 Institute, The University of Melbourne, Victoria, 3010, Australia
| | - Youhong Tang
- Medical Device Research Institute, College of Science and Engineering, Flinders University, South Australia, 5042, Australia.,Australia-China Joint Research Centre for Personal Health Technologies, Flinders University, South Australia, 5042, Australia
| | - Yuning Hong
- Department of Chemistry and Physics, La Trobe Institute for Molecular Science, La Trobe University, Victoria, 3086, Australia
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7
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Yin W, Li H, Chesman ASR, Tadgell B, Scully AD, Wang M, Huang W, McNeill CR, Wong WWH, Medhekar NV, Mulvaney P, Jasieniak JJ. Detection of Halomethanes Using Cesium Lead Halide Perovskite Nanocrystals. ACS Nano 2021; 15:1454-1464. [PMID: 33439631 DOI: 10.1021/acsnano.0c08794] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The extensive use of halomethanes (CH3X, X = F, Cl, Br, I) as refrigerants, propellants, and pesticides has drawn serious concern due to their adverse biological and atmospheric impact. However, there are currently no portable rapid and accurate monitoring systems for their detection. This work introduces an approach for the selective and sensitive detection of halomethanes using photoluminescence spectral shifts in cesium lead halide perovskite nanocrystals. Focusing on iodomethane (CH3I) as a model system, it is shown that cesium lead bromide (CsPbBr3) nanocrystals can undergo rapid (<5 s) halide exchange, but only after exposure to oleylamine to induce nucleophilic substitution of the CH3I and release the iodide species. The extent of the halide exchange is directly dependent on the CH3I concentration, with the photoluminescence emission of the CsPbBr3 nanocrystals exhibiting a redshift of more than 150 nm upon the addition of 10 ppmv of CH3I. This represents the widest detection range and the highest sensitivity to the detection of halomethanes using a low-cost and portable approach reported to date. Furthermore, inherent selectivity for halomethanes compared to other organohalide analogues is achieved through the dramatic differences in their alkylation reactivity.
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Affiliation(s)
- Wenping Yin
- ARC Centre of Excellence in Exciton Science, Monash University, Clayton 3800, Victoria, Australia
- Department of Materials Science and Engineering, Monash University, Clayton3800, Victoria, Australia
| | - Hanchen Li
- ARC Centre of Excellence in Exciton Science, Monash University, Clayton 3800, Victoria, Australia
- Department of Materials Science and Engineering, Monash University, Clayton3800, Victoria, Australia
| | - Anthony S R Chesman
- CSIRO Manufacturing, Clayton 3168, Victoria, Australia
- Melbourne Centre for Nanofabrication, Clayton 3168, Victoria, Australia
| | - Ben Tadgell
- ARC Centre of Excellence in Exciton Science, The University of Melbourne, Parkville 3010, Victoria, Australia
- School of Chemistry, The University of Melbourne, Parkville 3010, Victoria, Australia
| | | | - Mingchao Wang
- Department of Materials Science and Engineering, Monash University, Clayton3800, Victoria, Australia
| | - Wenchao Huang
- Department of Materials Science and Engineering, Monash University, Clayton3800, Victoria, Australia
| | - Christopher R McNeill
- Department of Materials Science and Engineering, Monash University, Clayton3800, Victoria, Australia
| | - Wallace W H Wong
- ARC Centre of Excellence in Exciton Science, The University of Melbourne, Parkville 3010, Victoria, Australia
- School of Chemistry, The University of Melbourne, Parkville 3010, Victoria, Australia
| | - Nikhil V Medhekar
- Department of Materials Science and Engineering, Monash University, Clayton3800, Victoria, Australia
| | - Paul Mulvaney
- ARC Centre of Excellence in Exciton Science, The University of Melbourne, Parkville 3010, Victoria, Australia
- School of Chemistry, The University of Melbourne, Parkville 3010, Victoria, Australia
| | - Jacek J Jasieniak
- ARC Centre of Excellence in Exciton Science, Monash University, Clayton 3800, Victoria, Australia
- Department of Materials Science and Engineering, Monash University, Clayton3800, Victoria, Australia
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8
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OwYong TC, Ding S, Wu N, Fellowes T, Chen S, White JM, Wong WWH, Hong Y. Optimising molecular rotors to AIE fluorophores for mitochondria uptake and retention. Chem Commun (Camb) 2020; 56:14853-14856. [PMID: 33174870 DOI: 10.1039/d0cc06411d] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Molecular rotors exhibit fluorescence enhancement in a confined environment and thus have been used extensively in biological imaging. However, many molecular rotors suffer from small Stokes shift and self-aggregation caused quenching. In this work, we have synthesised a series of red emissive molecular rotors based on cationic α-cyanostilbene. Profoundly enhanced aggregation-induced emission (AIE) properties and greatly widened Stokes shifts can be achieved by molecular engineering. With specificity to stain mitochondria, we demonstrate a simple approach to achieve cell uptake and retention upon tuning the pyridinium substituent of the dyes.
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Affiliation(s)
- Tze Cin OwYong
- ARC Centre of Excellence in Exciton Science, School of Chemistry, Bio21 Institute, The University of Melbourne, Parkville, VIC 3010, Australia. and Department of Chemistry and Physics, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, VIC 3086, Australia.
| | - Siyang Ding
- Department of Chemistry and Physics, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, VIC 3086, Australia.
| | - Na Wu
- ARC Centre of Excellence in Exciton Science, School of Chemistry, Bio21 Institute, The University of Melbourne, Parkville, VIC 3010, Australia.
| | - Thomas Fellowes
- ARC Centre of Excellence in Exciton Science, School of Chemistry, Bio21 Institute, The University of Melbourne, Parkville, VIC 3010, Australia.
| | - Sijie Chen
- Ming Wai Lau Centre for Reparative Medicine, Karolinska Institutet, Hong Kong
| | - Jonathan M White
- ARC Centre of Excellence in Exciton Science, School of Chemistry, Bio21 Institute, The University of Melbourne, Parkville, VIC 3010, Australia.
| | - Wallace W H Wong
- ARC Centre of Excellence in Exciton Science, School of Chemistry, Bio21 Institute, The University of Melbourne, Parkville, VIC 3010, Australia.
| | - Yuning Hong
- Department of Chemistry and Physics, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, VIC 3086, Australia.
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9
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Zhang B, Yang H, Warner T, Mulvaney P, Rosengarten G, Wong WWH, Ghiggino KP. A luminescent solar concentrator ray tracing simulator with a graphical user interface: features and applications. Methods Appl Fluoresc 2020; 8:037001. [PMID: 32492666 DOI: 10.1088/2050-6120/ab993d] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
A Monte-Carlo ray tracing simulator with a graphical user interface (MCRTS-GUI) has been developed to provide a quantitative description, performance evaluation and photon loss analysis of luminescent solar concentrators (LSCs). The algorithm is applied to several practical LSC device structures including multiple dyes in the same waveguiding layer, and structures where a dye layer is sandwiched between clear substrates. The effect of the host matrix absorption and the influence of the neighboring layers are investigated. Validations demonstrate that the MCRTS-GUI developed provides a reliable and accurate description of LSC performance. Code for the mixed-dye single layer configuration is converted into a ray-tracing package with a user-friendly interface and is made available as open source software.
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Affiliation(s)
- Bolong Zhang
- School of Chemistry and ARC Centre of Excellence in Exciton Science, University of Melbourne, Victoria 3010, Australia. Bio21 Institute, University of Melbourne, 30 Flemington Road, Victoria 3010, Australia
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10
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Lyskov I, Anda A, Wong YX, Tilley AJ, Hall CR, Thia J, Russo SP, Wong WWH, Cole JH, Smith TA. Bilirubin analogues as model compounds for exciton coupling. Phys Chem Chem Phys 2020; 22:15567-15572. [PMID: 32613218 DOI: 10.1039/d0cp01421d] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
A series of phycobilin analogues have been investigated in terms of coupled excitonic systems. These compounds consist of a monomer, a tetrapyrrole structurally similar to bilirubin (bR), and two conjugated bR analogues. Spectroscopic and computational methods have been used to investigate the degree of interchromophore coupling. We find the synthesised bR analogue shows stronger excitonic coupling than bR, owing to a different molecular geometry. The excitonic coupling in the conjugated molecules can be controlled by modifying the bridge side-group. New computed energy levels for bR using the DFT/MRCI method are also presented, which improve on published values and re-assign the character of excited singlet states.
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Affiliation(s)
- Igor Lyskov
- ARC Centre of Excellence in Exciton Science, Australia
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11
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Owyong TC, Subedi P, Deng J, Hinde E, Paxman JJ, White JM, Chen W, Heras B, Wong WWH, Hong Y. A Molecular Chameleon for Mapping Subcellular Polarity in an Unfolded Proteome Environment. Angew Chem Int Ed Engl 2020; 59:10129-10135. [DOI: 10.1002/anie.201914263] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2019] [Indexed: 12/20/2022]
Affiliation(s)
- Tze Cin Owyong
- ARC Centre of Excellence in Exciton Science School of Chemistry Bio21 Institute The University of Melbourne Parkville VIC 3010 Australia
- Department of Chemistry and Physics La Trobe Institute for Molecular Science La Trobe University Melbourne VIC 3086 Australia
| | - Pramod Subedi
- Department of Biochemistry and Genetics La Trobe Institute for Molecular Science La Trobe University Melbourne VIC 3086 Australia
| | - Jieru Deng
- Department of Biochemistry and Genetics La Trobe Institute for Molecular Science La Trobe University Melbourne VIC 3086 Australia
| | - Elizabeth Hinde
- School of Physics Department of Biochemistry and Molecular Biology Bio21 Institute The University of Melbourne Melbourne VIC 3010 Australia
| | - Jason J. Paxman
- Department of Biochemistry and Genetics La Trobe Institute for Molecular Science La Trobe University Melbourne VIC 3086 Australia
| | - Jonathan M. White
- ARC Centre of Excellence in Exciton Science School of Chemistry Bio21 Institute The University of Melbourne Parkville VIC 3010 Australia
| | - Weisan Chen
- Department of Biochemistry and Genetics La Trobe Institute for Molecular Science La Trobe University Melbourne VIC 3086 Australia
| | - Begoña Heras
- Department of Biochemistry and Genetics La Trobe Institute for Molecular Science La Trobe University Melbourne VIC 3086 Australia
| | - Wallace W. H. Wong
- ARC Centre of Excellence in Exciton Science School of Chemistry Bio21 Institute The University of Melbourne Parkville VIC 3010 Australia
| | - Yuning Hong
- Department of Chemistry and Physics La Trobe Institute for Molecular Science La Trobe University Melbourne VIC 3086 Australia
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12
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Owyong TC, Subedi P, Deng J, Hinde E, Paxman JJ, White JM, Chen W, Heras B, Wong WWH, Hong Y. A Molecular Chameleon for Mapping Subcellular Polarity in an Unfolded Proteome Environment. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201914263] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Tze Cin Owyong
- ARC Centre of Excellence in Exciton Science School of Chemistry Bio21 Institute The University of Melbourne Parkville VIC 3010 Australia
- Department of Chemistry and Physics La Trobe Institute for Molecular Science La Trobe University Melbourne VIC 3086 Australia
| | - Pramod Subedi
- Department of Biochemistry and Genetics La Trobe Institute for Molecular Science La Trobe University Melbourne VIC 3086 Australia
| | - Jieru Deng
- Department of Biochemistry and Genetics La Trobe Institute for Molecular Science La Trobe University Melbourne VIC 3086 Australia
| | - Elizabeth Hinde
- School of Physics Department of Biochemistry and Molecular Biology Bio21 Institute The University of Melbourne Melbourne VIC 3010 Australia
| | - Jason J. Paxman
- Department of Biochemistry and Genetics La Trobe Institute for Molecular Science La Trobe University Melbourne VIC 3086 Australia
| | - Jonathan M. White
- ARC Centre of Excellence in Exciton Science School of Chemistry Bio21 Institute The University of Melbourne Parkville VIC 3010 Australia
| | - Weisan Chen
- Department of Biochemistry and Genetics La Trobe Institute for Molecular Science La Trobe University Melbourne VIC 3086 Australia
| | - Begoña Heras
- Department of Biochemistry and Genetics La Trobe Institute for Molecular Science La Trobe University Melbourne VIC 3086 Australia
| | - Wallace W. H. Wong
- ARC Centre of Excellence in Exciton Science School of Chemistry Bio21 Institute The University of Melbourne Parkville VIC 3010 Australia
| | - Yuning Hong
- Department of Chemistry and Physics La Trobe Institute for Molecular Science La Trobe University Melbourne VIC 3086 Australia
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13
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Gao C, Zhang B, Hall CR, Li L, Chen Y, Zeng Y, Smith TA, Wong WWH. Triplet fusion upconversion using sterically protected 9,10-diphenylanthracene as the emitter. Phys Chem Chem Phys 2020; 22:6300-6307. [PMID: 32133470 DOI: 10.1039/c9cp06311k] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Improving the efficiency of triplet fusion upconversion (TF-UC) in the solid-state is still challenging due to the aggregation and phase separation of chromophores. In this work, two 9,10-diphenylanthracene (DPA) derivatives based on the modification of the 9,10-phenyl rings with bulky isopropyl groups (bDPA-1 and bDPA-2) were used as emitters. By using platinum octaethylporphyrin (PtOEP) as the sensitizer, TF-UC performance was comprehensively investigated in 3 media: toluene solution, polyurethane thin film and nano/micro-crystals in a polyvinyl alcohol matrix. Only a small difference in upconversion efficiency between the bulky DPAs and the DPA reference was observed in toluene solution and polyurethane thin film. However, a large improvement of TF-UC quantum yield was achieved in bDPA-2/PtOEP crystals (ΦUC = (0.92 ± 0.05)%) with a low excitation intensity threshold (52 mW cm-2) compared to that of DPA/PtOEP crystals (ΦUC = (0.09 ± 0.03)%). This difference was largely attributed to improved dispersibility of the PtOEP sensitizer in the bDPA-2 emitter crystals. The bulky DPAs also show excellent stability under UV irradiation with exposure to oxygen compared to DPA. These results provide a strategy for developing efficient solid-state TF-UC systems based on nano/micro-particles of emitter-sensitizer mixtures.
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Affiliation(s)
- Can Gao
- ARC Centre of Excellence in Exciton Science, School of Chemistry, Bio21 Institute, The University of Melbourne, Melbourne, Australia.
| | - Bolong Zhang
- ARC Centre of Excellence in Exciton Science, School of Chemistry, Bio21 Institute, The University of Melbourne, Melbourne, Australia.
| | - Christopher R Hall
- ARC Centre of Excellence in Exciton Science, School of Chemistry, Bio21 Institute, The University of Melbourne, Melbourne, Australia.
| | - Li Li
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Beijing, China
| | - Yeqin Chen
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Beijing, China
| | - Yi Zeng
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Beijing, China
| | - Trevor A Smith
- ARC Centre of Excellence in Exciton Science, School of Chemistry, Bio21 Institute, The University of Melbourne, Melbourne, Australia.
| | - Wallace W H Wong
- ARC Centre of Excellence in Exciton Science, School of Chemistry, Bio21 Institute, The University of Melbourne, Melbourne, Australia.
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14
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Abstract
The solvent and temperature used in the Gilch synthesis of poly[2-methoxy-5-(2-ethylhexyloxy)-1,4-phenylenevinylene] (MEH-PPV) were varied to achieve an improved set of reaction conditions.
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Affiliation(s)
- Riley O'shea
- ARC Centre of Excellence in Exciton Science
- School of Chemistry
- Bio21 Institute
- The University of Melbourne
- Parkville
| | - Wallace W. H. Wong
- ARC Centre of Excellence in Exciton Science
- School of Chemistry
- Bio21 Institute
- The University of Melbourne
- Parkville
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15
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Gao C, Seow JY, Zhang B, Hall CR, Tilley AJ, White JM, Smith TA, Wong WWH. Tetraphenylethene 9,10-Diphenylanthracene Derivatives - Synthesis and Photophysical Properties. Chempluschem 2019; 84:746-753. [PMID: 31944010 DOI: 10.1002/cplu.201900100] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2019] [Revised: 03/27/2019] [Indexed: 12/20/2022]
Abstract
A series of tetraphenylethene 9,10-diphenylanthracene (TPE-DPA) derivatives have been synthesized, and their photophysical properties studied. Photoluminescence measurements in PMMA, neat films and nanoparticle dispersions reveal that different aggregation states are formed, which leads to different photophysical behavior. The triplet excited state properties were studied using Pt(II) octaethylporphyrin (PtOEP) as triplet sensitizer. Upconverted emission from the DPA moiety is observed in nanoparticle dispersions of each derivative. A higher upconverted emission intensity is observed in aerated (compared to deaerated) solutions of the derivatives following irradiation, which is attributed to oxidation of the TPE moiety. These results provide valuable insight for the design of AIE luminogens for triplet-triplet annihilation upconversion (TTA-UC).
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Affiliation(s)
- Can Gao
- School of Chemistry ARC Centre of Excellence in Exciton Science, The University of Melbourne, Parkville, Victoria, 3010, Australia
| | - Jia Yi Seow
- School of Chemistry ARC Centre of Excellence in Exciton Science, The University of Melbourne, Parkville, Victoria, 3010, Australia
| | - Bolong Zhang
- School of Chemistry ARC Centre of Excellence in Exciton Science, The University of Melbourne, Parkville, Victoria, 3010, Australia
| | - Christopher R Hall
- School of Chemistry ARC Centre of Excellence in Exciton Science, The University of Melbourne, Parkville, Victoria, 3010, Australia
| | - Andrew J Tilley
- School of Chemistry ARC Centre of Excellence in Exciton Science, The University of Melbourne, Parkville, Victoria, 3010, Australia
| | - Jonathan M White
- School of Chemistry Bio21 Institute, The University of Melbourne, Parkville, Victoria, 3010, Australia
| | - Trevor A Smith
- School of Chemistry ARC Centre of Excellence in Exciton Science, The University of Melbourne, Parkville, Victoria, 3010, Australia
| | - Wallace W H Wong
- School of Chemistry ARC Centre of Excellence in Exciton Science, The University of Melbourne, Parkville, Victoria, 3010, Australia
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16
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Zhang S, Liu M, Tan LYF, Hong Q, Pow ZL, Owyong TC, Ding S, Wong WWH, Hong Y. Cover Feature: A Maleimide‐functionalized Tetraphenylethene for Measuring and Imaging Unfolded Proteins in Cells (Chem. Asian J. 6/2019). Chem Asian J 2019. [DOI: 10.1002/asia.201900262] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Shouxiang Zhang
- Department of Chemistry and PhysicsLa Trobe Institute for Molecular ScienceLa Trobe University Melbourne VIC 3086 Australia
| | - Mengjie Liu
- Department of Chemistry and PhysicsLa Trobe Institute for Molecular ScienceLa Trobe University Melbourne VIC 3086 Australia
| | - Lewis Yi Fong Tan
- Department of Chemistry and PhysicsLa Trobe Institute for Molecular ScienceLa Trobe University Melbourne VIC 3086 Australia
| | - Quentin Hong
- ARC Centre of Excellence in Exciton Science, School of ChemistryBio21 InstituteThe University of Melbourne Parkville VIC 3010 Australia
| | - Ze Liang Pow
- ARC Centre of Excellence in Exciton Science, School of ChemistryBio21 InstituteThe University of Melbourne Parkville VIC 3010 Australia
| | - Tze Cin Owyong
- Department of Chemistry and PhysicsLa Trobe Institute for Molecular ScienceLa Trobe University Melbourne VIC 3086 Australia
- ARC Centre of Excellence in Exciton Science, School of ChemistryBio21 InstituteThe University of Melbourne Parkville VIC 3010 Australia
| | - Siyang Ding
- Department of Chemistry and PhysicsLa Trobe Institute for Molecular ScienceLa Trobe University Melbourne VIC 3086 Australia
| | - Wallace W. H. Wong
- ARC Centre of Excellence in Exciton Science, School of ChemistryBio21 InstituteThe University of Melbourne Parkville VIC 3010 Australia
| | - Yuning Hong
- Department of Chemistry and PhysicsLa Trobe Institute for Molecular ScienceLa Trobe University Melbourne VIC 3086 Australia
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17
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Zhang S, Liu M, Tan LYF, Hong Q, Pow ZL, Owyong TC, Ding S, Wong WWH, Hong Y. A Maleimide‐functionalized Tetraphenylethene for Measuring and Imaging Unfolded Proteins in Cells. Chem Asian J 2019; 14:904-909. [DOI: 10.1002/asia.201900150] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2019] [Revised: 02/14/2019] [Indexed: 12/30/2022]
Affiliation(s)
- Shouxiang Zhang
- Department of Chemistry and Physics La Trobe Institute for Molecular Science La Trobe University Melbourne VIC 3086 Australia
| | - Mengjie Liu
- Department of Chemistry and Physics La Trobe Institute for Molecular Science La Trobe University Melbourne VIC 3086 Australia
| | - Lewis Yi Fong Tan
- Department of Chemistry and Physics La Trobe Institute for Molecular Science La Trobe University Melbourne VIC 3086 Australia
| | - Quentin Hong
- ARC Centre of Excellence in Exciton Science, School of Chemistry Bio21 Institute The University of Melbourne Parkville VIC 3010 Australia
| | - Ze Liang Pow
- ARC Centre of Excellence in Exciton Science, School of Chemistry Bio21 Institute The University of Melbourne Parkville VIC 3010 Australia
| | - Tze Cin Owyong
- Department of Chemistry and Physics La Trobe Institute for Molecular Science La Trobe University Melbourne VIC 3086 Australia
- ARC Centre of Excellence in Exciton Science, School of Chemistry Bio21 Institute The University of Melbourne Parkville VIC 3010 Australia
| | - Siyang Ding
- Department of Chemistry and Physics La Trobe Institute for Molecular Science La Trobe University Melbourne VIC 3086 Australia
| | - Wallace W. H. Wong
- ARC Centre of Excellence in Exciton Science, School of Chemistry Bio21 Institute The University of Melbourne Parkville VIC 3010 Australia
| | - Yuning Hong
- Department of Chemistry and Physics La Trobe Institute for Molecular Science La Trobe University Melbourne VIC 3086 Australia
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18
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Crocker RD, Zhang B, Pace DP, Wong WWH, Nguyen TV. Tetrabenzo[5.7]fulvalene: a forgotten aggregation induced-emission luminogen. Chem Commun (Camb) 2019; 55:11591-11594. [DOI: 10.1039/c9cc06289k] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Tetrabenzo[5.7]fulvalene has been proven to be an outstanding aggregation-induced emission fluorophore.
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Affiliation(s)
| | - Bolong Zhang
- ARC Centre of Excellence in Exciton Science
- Bio21 Institute and School of Chemistry
- University of Melbourne
- Australia
| | - Domenic P. Pace
- School of Chemistry
- University of New South Wales
- Sydney
- Australia
| | - Wallace W. H. Wong
- ARC Centre of Excellence in Exciton Science
- Bio21 Institute and School of Chemistry
- University of Melbourne
- Australia
| | - Thanh V. Nguyen
- School of Chemistry
- University of New South Wales
- Sydney
- Australia
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19
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Stevens AL, Novakovic S, White JM, Wong WWH, Smith TA, Ghiggino KP, Paige MF, Steer RP. Exciton Dynamics of Photoexcited Pendant Porphyrin Polymers in Solution and in Thin Films. J Phys Chem A 2018; 122:9605-9614. [DOI: 10.1021/acs.jpca.8b09321] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Amy L. Stevens
- Department of Chemistry, University of Saskatchewan, Saskatoon, SK, Canada S7N5C9
| | | | | | | | | | | | - Matthew F. Paige
- Department of Chemistry, University of Saskatchewan, Saskatoon, SK, Canada S7N5C9
| | - Ronald P. Steer
- Department of Chemistry, University of Saskatchewan, Saskatoon, SK, Canada S7N5C9
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20
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Gregory MA, Zhang B, Tilley AJ, Scheerlinck T, White JM, Wong WWH. Amine‐Substituted Diazocine Derivatives – Synthesis, Structure, and Photophysical Properties. Helv Chim Acta 2018. [DOI: 10.1002/hlca.201800146] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Mark A. Gregory
- School of Chemistry Bio21 Institute The University of Melbourne 30 Flemington Road, Parkville Victoria 3010 Australia
| | - Bolong Zhang
- School of Chemistry Bio21 Institute The University of Melbourne 30 Flemington Road, Parkville Victoria 3010 Australia
- ARC Centre of Excellence in Exciton Science School of Chemistry The University of Melbourne Parkville Victoria 3010 Australia
| | - Andrew J. Tilley
- School of Chemistry Bio21 Institute The University of Melbourne 30 Flemington Road, Parkville Victoria 3010 Australia
- ARC Centre of Excellence in Exciton Science School of Chemistry The University of Melbourne Parkville Victoria 3010 Australia
| | - Tamika Scheerlinck
- School of Chemistry Bio21 Institute The University of Melbourne 30 Flemington Road, Parkville Victoria 3010 Australia
| | - Jonathan M. White
- School of Chemistry Bio21 Institute The University of Melbourne 30 Flemington Road, Parkville Victoria 3010 Australia
| | - Wallace W. H. Wong
- School of Chemistry Bio21 Institute The University of Melbourne 30 Flemington Road, Parkville Victoria 3010 Australia
- ARC Centre of Excellence in Exciton Science School of Chemistry The University of Melbourne Parkville Victoria 3010 Australia
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21
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Rautela R, Joshi NK, Novakovic S, Wong WWH, White JM, Ghiggino KP, Paige MF, Steer RP. Determinants of the efficiency of photon upconversion by triplet-triplet annihilation in the solid state: zinc porphyrin derivatives in PVA. Phys Chem Chem Phys 2018; 19:23471-23482. [PMID: 28829080 DOI: 10.1039/c7cp04746k] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Spectroscopic, photophysical and computational studies designed to expose and explain the differences in the efficiencies of non-coherent photon upconversion (NCPU) by triplet-triplet annihilation (TTA) have been carried out for a new series of alkyl-substituted diphenyl and tetraphenyl zinc porphyrins, both in fluid solution and in solid films. Systematic variations in the alkyl-substitution of the phenyl groups in both the di- and tetraphenyl porphyrins introduces small, but well-understood changes in their spectroscopic and photophysical properties and in their TTA efficiencies. In degassed toluene solution TTA occurs for all derivatives and produces the fluorescent S2 product states in all cases. In PVA matrices, however, none of the di-phenylporphyrins exhibit measurable NCPU whereas all the tetraphenyl-substituted compounds remain upconversion-active. In PVA the NCPU efficiencies of the zinc tetraphenylporphyrins vary significantly with their steric characteristics; the most sterically crowded tetraphenyl derivative exhibits the greatest efficiency. DFT-D computations have been undertaken and help reveal the sources of these differences.
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Affiliation(s)
- Ranjana Rautela
- Department of Chemistry, University of Saskatchewan, Saskatoon, SK S7N5C9, Canada.
| | - Neeraj K Joshi
- Department of Chemistry, University of Saskatchewan, Saskatoon, SK S7N5C9, Canada.
| | - Sacha Novakovic
- School of Chemistry, University of Melbourne, VIC 3010, Australia.
| | - Wallace W H Wong
- School of Chemistry, University of Melbourne, VIC 3010, Australia.
| | - Jonathan M White
- School of Chemistry, University of Melbourne, VIC 3010, Australia.
| | | | - Matthew F Paige
- Department of Chemistry, University of Saskatchewan, Saskatoon, SK S7N5C9, Canada.
| | - Ronald P Steer
- Department of Chemistry, University of Saskatchewan, Saskatoon, SK S7N5C9, Canada.
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22
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Wang Y, Yao H, Zhou J, Hong Y, Chen B, Zhang B, Smith TA, Wong WWH, Zhao Z. A water-soluble, AIE-active polyelectrolyte for conventional and fluorescence lifetime imaging of mouse neuroblastoma neuro-2A cells. ACTA ACUST UNITED AC 2018. [DOI: 10.1002/pola.28943] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Yinan Wang
- College of Material, Chemistry and Chemical Engineering; Hangzhou Normal University; Hangzhou 310036 People's Republic of China
| | - Hongming Yao
- College of Material, Chemistry and Chemical Engineering; Hangzhou Normal University; Hangzhou 310036 People's Republic of China
| | - Jian Zhou
- College of Material, Chemistry and Chemical Engineering; Hangzhou Normal University; Hangzhou 310036 People's Republic of China
| | - Yuning Hong
- Department of Chemistry and Physics; La Trobe University; Victoria 3086 Australia
| | - Bin Chen
- State Key Laboratory of Luminescent Materials and Devices; South China University of Technology; Guangzhou 510640 People's Republic of China
| | - Bolong Zhang
- School of Chemistry; The University of Melbourne; Victoria 3010 Australia
| | - Trevor A. Smith
- School of Chemistry; The University of Melbourne; Victoria 3010 Australia
| | - Wallace W. H. Wong
- School of Chemistry; The University of Melbourne; Victoria 3010 Australia
| | - Zujin Zhao
- State Key Laboratory of Luminescent Materials and Devices; South China University of Technology; Guangzhou 510640 People's Republic of China
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23
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Xu J, Zhang B, Jansen M, Goerigk L, Wong WWH, Ritchie C. Highly Fluorescent Pyridinium Betaines for Light Harvesting. Angew Chem Int Ed Engl 2017; 56:13882-13886. [DOI: 10.1002/anie.201704832] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2017] [Revised: 06/29/2017] [Indexed: 12/13/2022]
Affiliation(s)
- Jingjing Xu
- School of Chemistry The University of Melbourne Bio21 Institute 30 Flemington Road Parkville Victoria 3010 Australia
| | - Bolong Zhang
- School of Chemistry The University of Melbourne Bio21 Institute 30 Flemington Road Parkville Victoria 3010 Australia
| | - Marina Jansen
- School of Chemistry The University of Melbourne Bio21 Institute 30 Flemington Road Parkville Victoria 3010 Australia
- Present Address: Organisch-Chemisches Institut der Universität Münster Corrensstrasse 40 48149 Münster Germany
| | - Lars Goerigk
- School of Chemistry The University of Melbourne Bio21 Institute 30 Flemington Road Parkville Victoria 3010 Australia
| | - Wallace W. H. Wong
- School of Chemistry The University of Melbourne Bio21 Institute 30 Flemington Road Parkville Victoria 3010 Australia
- ARC Centre of Excellence in Exciton Science School of Chemistry The University of Melbourne Parkville Victoria 3010 Australia
| | - Chris Ritchie
- School of Chemistry The University of Melbourne Bio21 Institute 30 Flemington Road Parkville Victoria 3010 Australia
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24
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Subbiah J, Mitchell VD, Hui NKC, Jones DJ, Wong WWH. A Green Route to Conjugated Polyelectrolyte Interlayers for High‐Performance Solar Cells. Angew Chem Int Ed Engl 2017; 56:8431-8434. [DOI: 10.1002/anie.201612021] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2016] [Indexed: 01/23/2023]
Affiliation(s)
- Jegadesan Subbiah
- School of Chemistry The University of Melbourne Bio21 Institute, 30 Flemington Road Parkville Victoria 3010 Australia
| | - Valerie D. Mitchell
- School of Chemistry The University of Melbourne Bio21 Institute, 30 Flemington Road Parkville Victoria 3010 Australia
| | - Nicholas K. C. Hui
- School of Chemistry The University of Melbourne Bio21 Institute, 30 Flemington Road Parkville Victoria 3010 Australia
| | - David J. Jones
- School of Chemistry The University of Melbourne Bio21 Institute, 30 Flemington Road Parkville Victoria 3010 Australia
| | - Wallace W. H. Wong
- School of Chemistry The University of Melbourne Bio21 Institute, 30 Flemington Road Parkville Victoria 3010 Australia
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25
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Subbiah J, Mitchell VD, Hui NKC, Jones DJ, Wong WWH. A Green Route to Conjugated Polyelectrolyte Interlayers for High‐Performance Solar Cells. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201612021] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Jegadesan Subbiah
- School of Chemistry The University of Melbourne Bio21 Institute, 30 Flemington Road Parkville Victoria 3010 Australia
| | - Valerie D. Mitchell
- School of Chemistry The University of Melbourne Bio21 Institute, 30 Flemington Road Parkville Victoria 3010 Australia
| | - Nicholas K. C. Hui
- School of Chemistry The University of Melbourne Bio21 Institute, 30 Flemington Road Parkville Victoria 3010 Australia
| | - David J. Jones
- School of Chemistry The University of Melbourne Bio21 Institute, 30 Flemington Road Parkville Victoria 3010 Australia
| | - Wallace W. H. Wong
- School of Chemistry The University of Melbourne Bio21 Institute, 30 Flemington Road Parkville Victoria 3010 Australia
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26
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Geraghty PB, Lee C, Subbiah J, Wong WWH, Banal JL, Jameel MA, Smith TA, Jones DJ. High performance p-type molecular electron donors for OPV applications via alkylthiophene catenation chromophore extension. Beilstein J Org Chem 2017; 12:2298-2314. [PMID: 28144297 PMCID: PMC5238583 DOI: 10.3762/bjoc.12.223] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2016] [Accepted: 10/12/2016] [Indexed: 12/04/2022] Open
Abstract
The synthesis of key 4-alkyl-substituted 5-(trimethylsilyl)thiophene-2-boronic acid pinacol esters 3 allowed a simplified alkylthiophene catenation process to access bis-, ter-, quater-, and quinquethiophene π-bridges for the synthesis of acceptor–π-bridge-donor– π-bridge-acceptor (A–π-D–π-A) electron donor molecules. Based on the known benzodithiophene-terthiophene-rhodanine (BTR) material, the BXR series of materials, BMR (X = M, monothiophene), BBR (X = B, bithiophene), known BTR (X = T, terthiophene), BQR (X = Q, quaterthiophene), and BPR (X = P(penta), quinquethiophene) were synthesised to examine the influence of chromophore extension on the device performance and stability for OPV applications. The BTxR (x = 4, butyl, and x = 8, octyl) series of materials were synthesised by varying the oligothiophene π-bridge alkyl substituent to examine structure–property relationships in OPV device performance. The devices assembled using electron donors with an extended chromophore (BQR and BPR) are shown to be more thermally stable than the BTR containing devices, with un-optimized efficiencies up to 9.0% PCE. BQR has been incorporated as a secondary donor in ternary blend devices with PTB7-Th resulting in high-performance OPV devices with up to 10.7% PCE.
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Affiliation(s)
- Paul B Geraghty
- School of Chemistry, Bio21 Institute, University of Melbourne, Parkville Vic 3010, Melbourne, Australia
| | - Calvin Lee
- School of Chemistry, Bio21 Institute, University of Melbourne, Parkville Vic 3010, Melbourne, Australia
| | - Jegadesan Subbiah
- School of Chemistry, Bio21 Institute, University of Melbourne, Parkville Vic 3010, Melbourne, Australia
| | - Wallace W H Wong
- School of Chemistry, Bio21 Institute, University of Melbourne, Parkville Vic 3010, Melbourne, Australia
| | - James L Banal
- School of Chemistry, Bio21 Institute, University of Melbourne, Parkville Vic 3010, Melbourne, Australia
| | - Mohammed A Jameel
- School of Chemistry, University of Melbourne, Parkville Vic 3010, Melbourne, Australia
| | - Trevor A Smith
- School of Chemistry, University of Melbourne, Parkville Vic 3010, Melbourne, Australia
| | - David J Jones
- School of Chemistry, Bio21 Institute, University of Melbourne, Parkville Vic 3010, Melbourne, Australia
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27
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Abstract
Luminescent solar concentrators (LSCs) are light harvesting devices that are ideally suited to light collection in the urban environment where direct sunlight is often not available. LSCs consist of highly luminescent compounds embedded or coated on a transparent substrate that absorb diffuse or direct solar radiation over a large area. The resulting luminescence is trapped in the waveguide by total internal reflection to the thin edges of the substrate where the concentrated light can be used to improve the performance of photovoltaic devices. The concept of LSCs has been around for several decades, and yet the efficiencies of current devices are still below expectations for commercial viability. There are two primary challenges when designing new chromophores for LSC applications. Reabsorption of dye emission by chromophores within the waveguide is a significant loss mechanism attenuating the light output of LSCs. Concentration quenching, particularly in organic dye systems, restricts the quantity of chromophores that can be incorporated in the waveguide thus limiting the light absorbed by the LSC. Frequently, a compromise between increased light harvesting of the incident light and decreasing emission quantum yield is required for most organic chromophore-based systems due to concentration quenching. The low Stokes shift of common organic dyes used in current LSCs also imposes another optimization problem. Increasing light absorption of LSCs based on organic dyes to achieve efficient light harvesting also enhances reabsorption. Ideally, a design strategy to simultaneously optimize light harvesting, concentration quenching, and reabsorption of LSC chromophores is clearly needed to address the significant losses in LSCs. Over the past few years, research in our group has targeted novel dye structures that address these primary challenges. There is a common perception that dye aggregates are to be avoided in LSCs. It became apparent in our studies that aggregates of chromophores exhibiting aggregation-induced emission (AIE) behavior are attractive candidates for LSC applications. Strategic application of AIE chromophores has led to the development of the first organic-based transparent solar concentrator that harvests UV light as well as the demonstration of reabsorption reduction by taking advantage of energy migration processes between chromophores. Further developments led us to the application of perylene diimides using an energy migration/energy transfer approach. To prevent concentration quenching, a molecularly insulated perylene diimide with bulky substituents attached to the imide positions was designed and synthesized. By combining the insulated perylene diimide with a commercial perylene dye as an energy donor-acceptor emitter pair, detrimental luminescence reabsorption was reduced while achieving a high chromophore concentration for efficient light absorption. This Account reviews and reinspects some of our recent work and the improvements in the field of LSCs.
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Affiliation(s)
- James L. Banal
- School of Chemistry, Bio21
Institute, University of Melbourne, Parkville, Victoria 3010, Australia
| | - Bolong Zhang
- School of Chemistry, Bio21
Institute, University of Melbourne, Parkville, Victoria 3010, Australia
| | - David J. Jones
- School of Chemistry, Bio21
Institute, University of Melbourne, Parkville, Victoria 3010, Australia
| | - Kenneth P. Ghiggino
- School of Chemistry, Bio21
Institute, University of Melbourne, Parkville, Victoria 3010, Australia
| | - Wallace W. H. Wong
- School of Chemistry, Bio21
Institute, University of Melbourne, Parkville, Victoria 3010, Australia
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Gao M, Hong Y, Chen B, Wang Y, Zhou W, Wong WWH, Zhou J, Smith TA, Zhao Z. AIE conjugated polyelectrolytes based on tetraphenylethene for efficient fluorescence imaging and lifetime imaging of living cells. Polym Chem 2017. [DOI: 10.1039/c7py00564d] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
New conjugated polyelectrolytes based on tetraphenylethene are prepared, which show good performance in fluorescence imaging and fluorescence lifetime imaging of living cells.
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Affiliation(s)
- Mengxia Gao
- College of Material
- Chemistry and Chemical Engineering
- Hangzhou Normal University
- Hangzhou 310036
- China
| | - Yuning Hong
- School of Chemistry
- The University of Melbourne
- Australia
- Department of Chemistry and Physics
- La Trobe Institute for Molecular Science
| | - Bin Chen
- State Key Laboratory of Luminescent Materials and Devices
- South China University of Technology
- Guangzhou 510640
- China
| | - Yinan Wang
- College of Material
- Chemistry and Chemical Engineering
- Hangzhou Normal University
- Hangzhou 310036
- China
| | - Wenjun Zhou
- College of Material
- Chemistry and Chemical Engineering
- Hangzhou Normal University
- Hangzhou 310036
- China
| | | | - Jian Zhou
- College of Material
- Chemistry and Chemical Engineering
- Hangzhou Normal University
- Hangzhou 310036
- China
| | | | - Zujin Zhao
- State Key Laboratory of Luminescent Materials and Devices
- South China University of Technology
- Guangzhou 510640
- China
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29
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Ren JM, Subbiah J, Zhang B, Ishitake K, Satoh K, Kamigaito M, Qiao GG, Wong EHH, Wong WWH. Fullerene peapod nanoparticles as an organic semiconductor-electrode interface layer. Chem Commun (Camb) 2016; 52:3356-9. [PMID: 26822451 DOI: 10.1039/c5cc10444k] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
A syndiotactic poly(methyl methacrylate) bottlebrush polymer has been shown to complex with C60 fullerene and assemble into nanoparticles that can be dispersed in polar organic solvents. This composite material was used as an electrode interlayer in organic solar cell (OSC) devices leading to enhanced device performance.
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Affiliation(s)
- Jing M Ren
- Department of Chemical and Biomolecular Engineering, The University of Melbourne, Parkville, Victoria 3010, Australia.
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30
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Affiliation(s)
- Dean van As
- School of Chemistry; University of Melbourne; Bio21 Institute; 30 Flemington Road Parkville Victoria 3010 Australia
| | - Jegadesan Subbiah
- School of Chemistry; University of Melbourne; Bio21 Institute; 30 Flemington Road Parkville Victoria 3010 Australia
| | - David J. Jones
- School of Chemistry; University of Melbourne; Bio21 Institute; 30 Flemington Road Parkville Victoria 3010 Australia
| | - Wallace W. H. Wong
- School of Chemistry; University of Melbourne; Bio21 Institute; 30 Flemington Road Parkville Victoria 3010 Australia
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31
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Gruber M, Jung SH, Schott S, Venkateshvaran D, Kronemeijer AJ, Andreasen JW, McNeill CR, Wong WWH, Shahid M, Heeney M, Lee JK, Sirringhaus H. Enabling high-mobility, ambipolar charge-transport in a DPP-benzotriazole copolymer by side-chain engineering. Chem Sci 2015; 6:6949-6960. [PMID: 29861933 PMCID: PMC5951104 DOI: 10.1039/c5sc01326g] [Citation(s) in RCA: 83] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2015] [Accepted: 08/07/2015] [Indexed: 11/21/2022] Open
Abstract
In this article we discuss the synthesis of four new low band-gap co-polymers based on the diketopyrrolopyrrole (DPP) and benzotriazole (BTZ) monomer unit.
In this article we discuss the synthesis of four new low band-gap co-polymers based on the diketopyrrolopyrrole (DPP) and benzotriazole (BTZ) monomer unit. We demonstrate that the BTZ unit allows for additional solubilizing side-chains on the co-monomer and show that the introduction of a linear side-chain on the DPP-unit leads to an increase in thin-film order and charge-carrier mobility if a sufficiently solubilizing, branched, side chain is attached to the BTZ. We compare two different synthetic routes, direct arylation and Suzuki-polycondensation, by a direct comparison of polymers obtained via the two routes and show that direct arylation produces polymers with lower electrical performance which we attribute to a higher density of chain Furthermore we demonstrate that a polymer utilizing this design motif and synthesized via Suzuki-polycondensation ((l-C18)-DPP-(b-C17)-BTZ) exhibits exceptionally high and near balanced average electron and hole mobilities >2 cm2 V–1 s–1 which are among the highest, robustly extracted mobility values reported for DPP copolymers in a top-gate configuration to date. Our results demonstrate clearly that linear side chain substitution of the DPP unit together with co-monomers that allow for the use of sufficiently long or branched solubilizing side chains can be an attractive design motif for solution processable, high mobility DPP copolymers.
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Affiliation(s)
- Mathias Gruber
- Cavendish Laboratory , University of Cambridge , J J Thomson Avenue , Cambridge , CB3 0HE , UK .
| | - Seok-Heon Jung
- Department of Polymer Science & Engineering , Inha University , Incheon , 402-751 , South Korea .
| | - Sam Schott
- Cavendish Laboratory , University of Cambridge , J J Thomson Avenue , Cambridge , CB3 0HE , UK .
| | - Deepak Venkateshvaran
- Cavendish Laboratory , University of Cambridge , J J Thomson Avenue , Cambridge , CB3 0HE , UK .
| | - Auke Jisk Kronemeijer
- Cavendish Laboratory , University of Cambridge , J J Thomson Avenue , Cambridge , CB3 0HE , UK .
| | - Jens Wenzel Andreasen
- Department of Energy Conversion and Storage , Technical University of Denmark , Frederiksborgvej 399 , 4000 Roskilde , Denmark
| | - Christopher R McNeill
- Department of Materials Engineering , Monash University , Clayton , Victoria 3800 , Australia
| | - Wallace W H Wong
- School of Chemistry , Bio21 Institute , University of Melbourne , Parkville , Victoria 3010 , Australia
| | - Munazza Shahid
- Department of Chemistry and Centre for Plastic Electronics , Imperial College , London , SW7 2AZ , UK .
| | - Martin Heeney
- Department of Chemistry and Centre for Plastic Electronics , Imperial College , London , SW7 2AZ , UK .
| | - Jin-Kyun Lee
- Department of Polymer Science & Engineering , Inha University , Incheon , 402-751 , South Korea .
| | - Henning Sirringhaus
- Cavendish Laboratory , University of Cambridge , J J Thomson Avenue , Cambridge , CB3 0HE , UK .
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Wong WWH, Banal JL, Geraghty PB, Hong Q, Zhang B, Holmes AB, Jones DJ. Organic Photovoltaic Materials-Design, Synthesis and Scale-Up. CHEM REC 2015; 15:1006-20. [DOI: 10.1002/tcr.201500019] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2015] [Indexed: 02/04/2023]
Affiliation(s)
- Wallace W. H. Wong
- School of Chemistry; University of Melbourne; Bio21 Institute 30 Flemington Road Parkville Victoria 3010 Australia
| | - James L. Banal
- School of Chemistry; University of Melbourne; Bio21 Institute 30 Flemington Road Parkville Victoria 3010 Australia
| | - Paul B. Geraghty
- School of Chemistry; University of Melbourne; Bio21 Institute 30 Flemington Road Parkville Victoria 3010 Australia
| | - Quentin Hong
- School of Chemistry; University of Melbourne; Bio21 Institute 30 Flemington Road Parkville Victoria 3010 Australia
| | - Bolong Zhang
- School of Chemistry; University of Melbourne; Bio21 Institute 30 Flemington Road Parkville Victoria 3010 Australia
| | - Andrew B. Holmes
- School of Chemistry; University of Melbourne; Bio21 Institute 30 Flemington Road Parkville Victoria 3010 Australia
| | - David J. Jones
- School of Chemistry; University of Melbourne; Bio21 Institute 30 Flemington Road Parkville Victoria 3010 Australia
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Subbiah J, Purushothaman B, Chen M, Qin T, Gao M, Vak D, Scholes FH, Chen X, Watkins SE, Wilson GJ, Holmes AB, Wong WWH, Jones DJ. Organic solar cells using a high-molecular-weight benzodithiophene-benzothiadiazole copolymer with an efficiency of 9.4%. Adv Mater 2015; 27:702-5. [PMID: 25429716 DOI: 10.1002/adma.201403080] [Citation(s) in RCA: 74] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2014] [Revised: 10/28/2014] [Indexed: 05/17/2023]
Abstract
A high molecular weight donor-acceptor conjugated polymer is synthesized using the Suzuki polycondensation method. Using this polymer, a single-junction bulk-heterojunction solar cell is fabricated giving a power conversion efficiency of 9.4% using a fullerene-modified ZnO interlayer at the cathode contact.
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Affiliation(s)
- Jegadesan Subbiah
- School of Chemistry, Bio21 Institute, University of Melbourne, 30 Flemington Road, Victoria, 3010, Australia
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34
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Sun K, Xiao Z, Lu S, Zajaczkowski W, Pisula W, Hanssen E, White JM, Williamson RM, Subbiah J, Ouyang J, Holmes AB, Wong WWH, Jones DJ. A molecular nematic liquid crystalline material for high-performance organic photovoltaics. Nat Commun 2015; 6:6013. [PMID: 25586307 PMCID: PMC4309440 DOI: 10.1038/ncomms7013] [Citation(s) in RCA: 218] [Impact Index Per Article: 24.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2014] [Accepted: 12/01/2014] [Indexed: 02/07/2023] Open
Abstract
Solution-processed organic photovoltaic cells (OPVs) hold great promise to enable roll-to-roll printing of environmentally friendly, mechanically flexible and cost-effective photovoltaic devices. Nevertheless, many high-performing systems show best power conversion efficiencies (PCEs) with a thin active layer (thickness is ~100 nm) that is difficult to translate to roll-to-roll processing with high reproducibility. Here we report a new molecular donor, benzodithiophene terthiophene rhodanine (BTR), which exhibits good processability, nematic liquid crystalline behaviour and excellent optoelectronic properties. A maximum PCE of 9.3% is achieved under AM 1.5G solar irradiation, with fill factor reaching 77%, rarely achieved in solution-processed OPVs. Particularly promising is the fact that BTR-based devices with active layer thicknesses up to 400 nm can still afford high fill factor of ~70% and high PCE of ~8%. Together, the results suggest, with better device architectures for longer device lifetime, BTR is an ideal candidate for mass production of OPVs.
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Affiliation(s)
- Kuan Sun
- 1] School of Chemistry, Bio21 Institute, The University of Melbourne, 30 Flemington Road, Parkville, Victoria 3010, Australia [2] Department of Materials Science and Engineering, National University of Singapore, 7 Engineering Drive 1, Singapore 117574, Singapore [3] Department of Renewable Energy, School of Power Engineering, Chongqing University, 174 Shazhengjie, Shapingba, Chongqing 400044, China
| | - Zeyun Xiao
- School of Chemistry, Bio21 Institute, The University of Melbourne, 30 Flemington Road, Parkville, Victoria 3010, Australia
| | - Shirong Lu
- School of Chemistry, Bio21 Institute, The University of Melbourne, 30 Flemington Road, Parkville, Victoria 3010, Australia
| | | | - Wojciech Pisula
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
| | - Eric Hanssen
- Advanced Microscopy Facility, Bio21 Institute, The University of Melbourne, 30 Flemington Road, Parkville, Victoria 3010, Australia
| | - Jonathan M White
- School of Chemistry, Bio21 Institute, The University of Melbourne, 30 Flemington Road, Parkville, Victoria 3010, Australia
| | - Rachel M Williamson
- MX Beamlines, Australian Synchrotron, 800 Blackburn Road, Clayton, Victoria 3168, Australia
| | - Jegadesan Subbiah
- School of Chemistry, Bio21 Institute, The University of Melbourne, 30 Flemington Road, Parkville, Victoria 3010, Australia
| | - Jianyong Ouyang
- Department of Materials Science and Engineering, National University of Singapore, 7 Engineering Drive 1, Singapore 117574, Singapore
| | - Andrew B Holmes
- School of Chemistry, Bio21 Institute, The University of Melbourne, 30 Flemington Road, Parkville, Victoria 3010, Australia
| | - Wallace W H Wong
- School of Chemistry, Bio21 Institute, The University of Melbourne, 30 Flemington Road, Parkville, Victoria 3010, Australia
| | - David J Jones
- School of Chemistry, Bio21 Institute, The University of Melbourne, 30 Flemington Road, Parkville, Victoria 3010, Australia
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35
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Zhang B, Subbiah J, Lai YY, White JM, Jones DJ, Wong WWH. One-pot selective synthesis of a fullerene bisadduct for organic solar cell applications. Chem Commun (Camb) 2015; 51:9837-40. [DOI: 10.1039/c5cc02701b] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Efficient synthesis of a single isomer of a fullerene bisadduct for organic solar cell applications was obtained using tether-directed functionalization in one pot over two steps.
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Affiliation(s)
- Bolong Zhang
- School of Chemistry
- University of Melbourne Bio21 Institute
- Parkville
- Australia
| | - Jegadesan Subbiah
- School of Chemistry
- University of Melbourne Bio21 Institute
- Parkville
- Australia
| | - Yu-Ying Lai
- School of Chemistry
- University of Melbourne Bio21 Institute
- Parkville
- Australia
| | - Jonathan M. White
- School of Chemistry
- University of Melbourne Bio21 Institute
- Parkville
- Australia
| | - David J. Jones
- School of Chemistry
- University of Melbourne Bio21 Institute
- Parkville
- Australia
| | - Wallace W. H. Wong
- School of Chemistry
- University of Melbourne Bio21 Institute
- Parkville
- Australia
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36
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Zhang B, White JM, Jones DJ, Wong WWH. Regioselective synthesis of fullerene multiadducts via tether-directed 1,3-dipolar cycloaddition. Org Biomol Chem 2015; 13:10505-10. [PMID: 26338809 DOI: 10.1039/c5ob01630d] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A class of fullerene bisadducts was synthesized in one-pot over two steps with regioselectivity using tether-directed functionalization approach. In extending this class of materials, interesting variations in regioselectivity was observed when different amino acid reactants were used.
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Affiliation(s)
- Bolong Zhang
- School of Chemistry
- University of Melbourne Bio21 Institute
- Parkville
- Australia
| | - Jonathan M. White
- School of Chemistry
- University of Melbourne Bio21 Institute
- Parkville
- Australia
| | - David J. Jones
- School of Chemistry
- University of Melbourne Bio21 Institute
- Parkville
- Australia
| | - Wallace W. H. Wong
- School of Chemistry
- University of Melbourne Bio21 Institute
- Parkville
- Australia
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37
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Xiao Z, Sun K, Subbiah J, Qin T, Lu S, Purushothaman B, Jones DJ, Holmes AB, Wong WWH. Effect of molecular weight on the properties and organic solar cell device performance of a donor–acceptor conjugated polymer. Polym Chem 2015. [DOI: 10.1039/c4py01631a] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The effect of molecular weight of a conjugated polymer on its photophysical properties and solar cell device performance was investigated.
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Affiliation(s)
- Zeyun Xiao
- School of Chemistry
- Bio21 Institute
- the University of Melbourne
- Parkville
- Australia
| | - Kuan Sun
- School of Chemistry
- Bio21 Institute
- the University of Melbourne
- Parkville
- Australia
| | - Jegadesan Subbiah
- School of Chemistry
- Bio21 Institute
- the University of Melbourne
- Parkville
- Australia
| | - Tianshi Qin
- CSIRO Materials Science and Engineering
- Clayton South
- Australia
| | - Shirong Lu
- School of Chemistry
- Bio21 Institute
- the University of Melbourne
- Parkville
- Australia
| | | | - David J. Jones
- School of Chemistry
- Bio21 Institute
- the University of Melbourne
- Parkville
- Australia
| | - Andrew B. Holmes
- School of Chemistry
- Bio21 Institute
- the University of Melbourne
- Parkville
- Australia
| | - Wallace W. H. Wong
- School of Chemistry
- Bio21 Institute
- the University of Melbourne
- Parkville
- Australia
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38
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Wang Y, Klein MFG, Hiyoshi J, Kawauchi S, Wong WWH, Michinobu T. Bulk-Heterojunction Organic Solar Cells Based on Benzobisthiadiazole Semiconducting Polymers. J PHOTOPOLYM SCI TEC 2015. [DOI: 10.2494/photopolymer.28.385] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Yang Wang
- Department of Organic and Polymeric Materials, Tokyo Institute of Technology
| | | | - Junya Hiyoshi
- Department of Organic and Polymeric Materials, Tokyo Institute of Technology
| | - Susumu Kawauchi
- Department of Organic and Polymeric Materials, Tokyo Institute of Technology
| | | | - Tsuyoshi Michinobu
- Department of Organic and Polymeric Materials, Tokyo Institute of Technology
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Banal JL, Ghiggino KP, Wong WWH. Efficient light harvesting of a luminescent solar concentrator using excitation energy transfer from an aggregation-induced emitter. Phys Chem Chem Phys 2014; 16:25358-63. [PMID: 25338164 DOI: 10.1039/c4cp03807j] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
The compromise between light absorption and reabsorption losses limits the potential light conversion efficiency of luminescent solar concentrators (LSCs). Current approaches do not fully address both issues. By using the excitation energy transfer (EET) strategy with a donor chromophore that exhibits aggregation-induced emission (AIE) behaviour, it is shown that both transmission and reabsorption losses can be minimized in a LSC device achieving high light collection and concentration efficiencies. The light harvesting performance of the LSC developed has been characterized using fluorescence quantum yield measurements and Monte Carlo ray tracing simulations. Comparative incident photon conversion efficiency and short-circuit current data based on the LSC coupled to a silicon solar cell provide additional evidence for improved performance.
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Affiliation(s)
- James L Banal
- Bio21 Institute, School of Chemistry, The University of Melbourne, Parkville 3010, Australia.
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40
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Xiao Z, Sun K, Subbiah J, Ji S, Jones DJ, Wong WWH. Hydrogen bonding in bulk heterojunction solar cells: a case study. Sci Rep 2014; 4:5701. [PMID: 25027678 PMCID: PMC4099981 DOI: 10.1038/srep05701] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2014] [Accepted: 06/24/2014] [Indexed: 01/22/2023] Open
Abstract
Small molecules with dithieno[3,2-b;2',3'-d]thiophene as central building block and octyl cyanoacetate and octyl cyanoacetamide as different terminal building blocks have been designed and synthesized. The amide containing small molecule can form intermolecular hydrogen bonding between N-H...O = C of the amide group. The photovoltaic properties and active layer morphologies of the two molecules in bulk heterojunction solar cells are compared to study the influence of hydrogen bonding on the active layer morphology. New methanofullerene compound containing amide group has also been synthesized and compared with conventional fullerene electron acceptors.
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Affiliation(s)
- Zeyun Xiao
- School of Chemistry, Bio21 Institute, the University of Melbourne, 30 Flemington Road, Parkville, Victoria 3010, Australia
| | - Kuan Sun
- School of Chemistry, Bio21 Institute, the University of Melbourne, 30 Flemington Road, Parkville, Victoria 3010, Australia
| | - Jegadesan Subbiah
- School of Chemistry, Bio21 Institute, the University of Melbourne, 30 Flemington Road, Parkville, Victoria 3010, Australia
| | - Shaomin Ji
- School of Chemistry, Bio21 Institute, the University of Melbourne, 30 Flemington Road, Parkville, Victoria 3010, Australia
| | - David J. Jones
- School of Chemistry, Bio21 Institute, the University of Melbourne, 30 Flemington Road, Parkville, Victoria 3010, Australia
| | - Wallace W. H. Wong
- School of Chemistry, Bio21 Institute, the University of Melbourne, 30 Flemington Road, Parkville, Victoria 3010, Australia
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41
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Dam HH, Sun K, Hanssen E, White JM, Marszalek T, Pisula W, Czolk J, Ludwig J, Colsmann A, Pfaff M, Gerthsen D, Wong WWH, Jones DJ. Morphology change and improved efficiency in organic photovoltaics via hexa-peri-hexabenzocoronene templates. ACS Appl Mater Interfaces 2014; 6:8824-8835. [PMID: 24848983 DOI: 10.1021/am5015666] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
The morphology of the active layer in organic photovoltaics (OPVs) is of crucial importance as it greatly influences charge generation and transport. A templating interlayer between the electrode and the active layer can change active layer morphology and influence the domain orientation. A series of amphiphilic interface modifiers (IMs) combining a hydrophilic polyethylene-glycol (PEG) oligomer and a hydrophobic hexabenzocoronene (HBC) were designed to be soluble in PEDOT:PSS solutions, and surface accumulate on drying. These IMs are able to self-assemble in solution. When IMs are deposited on top of a poly(3,4-ethylenedioxythiophene) poly(styrenesulfonate) (PEDOT:PSS) film, they induce a morphology change of the active layer consisting of discotic fluorenyl-substituted HBC (FHBC) and [6,6]-phenyl C61-butyric acid methyl ester (PCBM). However, when only small amounts (0.2 wt %) of IMs are blended into PEDOT:PSS, a profound change of the active layer morphology is also observed. Morphology changes were monitored by grazing incidence wide-angle X-ray scattering (GIWAXS), transmission electron microscopy (TEM), TEM tomography, and low-energy high-angle angular dark-field scanning transmission electron microscopy (HAADF STEM). The interface modification resulted in a 20% enhancement of power conversion efficiency.
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Affiliation(s)
- Henk H Dam
- School of Chemistry, Bio21 Institute, The University of Melbourne , 30 Flemmington Road, Parkville, Victoria 3010, Australia
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42
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Banal JL, White JM, Ghiggino KP, Wong WWH. Concentrating aggregation-induced fluorescence in planar waveguides: a proof-of-principle. Sci Rep 2014; 4:4635. [PMID: 24844675 PMCID: PMC4027885 DOI: 10.1038/srep04635] [Citation(s) in RCA: 72] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2014] [Accepted: 03/24/2014] [Indexed: 01/20/2023] Open
Abstract
The photophysical properties of fluorescent dyes are key determinants in the performance of luminescent solar concentrators (LSCs). First-generation dyes--coumarin, perylenes, and rhodamines--used in LSCs suffer from both concentration quenching in the solid-state and small Stokes shifts which limit the current LSC efficiencies to below theoretical limits. Here we show that fluorophores that exhibit aggregation-induced emission (AIE) are promising materials for LSC applications. Experiments and Monte Carlo simulations show that the optical quantum efficiencies of LSCs with AIE fluorophores are at least comparable to those of LSCs with first-generation dyes as the active materials even without the use of any optical accessories to enhance the trapping efficiency of the LSCs. Our results demonstrate that AIE fluorophores can potentially solve some key limiting properties of first-generation LSC dyes.
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Affiliation(s)
- James L. Banal
- Bio21 Institute, School of Chemistry, The University of Melbourne, Parkville 3010 , Australia
| | - Jonathan M. White
- Bio21 Institute, School of Chemistry, The University of Melbourne, Parkville 3010 , Australia
| | - Kenneth P. Ghiggino
- Bio21 Institute, School of Chemistry, The University of Melbourne, Parkville 3010 , Australia
| | - Wallace W. H. Wong
- Bio21 Institute, School of Chemistry, The University of Melbourne, Parkville 3010 , Australia
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Wong WWH, Subbiah J, Puniredd SR, Pisula W, Jones DJ, Holmes AB. Benzotriazole-based donor–acceptor conjugated polymers with a broad absorption in the visible range. Polym Chem 2014. [DOI: 10.1039/c3py01142a] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Xiao Z, Subbiah J, Sun K, Jones DJ, Holmes AB, Wong WWH. Synthesis and photovoltaic properties of thieno[3,2-b]thiophenyl substituted benzo[1,2-b:4,5-b′]dithiophene copolymers. Polym Chem 2014. [DOI: 10.1039/c4py00827h] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new thienothiophene–benzodithiophene electron donor building block was synthesized and incorporated into 2-dimensional conjugated donor–acceptor polymers. The polymers were fully characterised and tested in bulk heterojunction solar cell devices.
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Affiliation(s)
- Zeyun Xiao
- School of Chemistry
- Bio21 Institute
- The University of Melbourne
- Parkville, Australia
| | - Jegadesan Subbiah
- School of Chemistry
- Bio21 Institute
- The University of Melbourne
- Parkville, Australia
| | - Kuan Sun
- School of Chemistry
- Bio21 Institute
- The University of Melbourne
- Parkville, Australia
| | - David J. Jones
- School of Chemistry
- Bio21 Institute
- The University of Melbourne
- Parkville, Australia
| | - Andrew B. Holmes
- School of Chemistry
- Bio21 Institute
- The University of Melbourne
- Parkville, Australia
| | - Wallace W. H. Wong
- School of Chemistry
- Bio21 Institute
- The University of Melbourne
- Parkville, Australia
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Seyler H, Haid S, Kwon TH, Jones DJ, Bäuerle P, Holmes AB, Wong WWH. Continuous Flow Synthesis of Organic Electronic Materials – Case Studies in Methodology Translation and Scale-up. Aust J Chem 2013. [DOI: 10.1071/ch12406] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
The continuous flow synthesis of functional thiophene derivatives was examined. Methodology for the lithiation of thiophene building blocks was developed using a commercial bench-top flow reactor. In addition, the advantages of flow processing were demonstrated in the synthesis of a high performance organic dye in gram scale.
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McCluskey GE, Watkins SE, Holmes AB, Ober CK, Lee JK, Wong WWH. Semi-perfluoroalkyl polyfluorene with varying fluorine content: synthesis and photophysical properties. Polym Chem 2013. [DOI: 10.1039/c3py00124e] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Dryza V, Nguyen JL, Kwon TH, Wong WWH, Holmes AB, Bieske EJ. Photophysics and aggregation effects of a triphenylamine-based dye sensitizer on metal-oxide nanoparticles suspended in an ion trap. Phys Chem Chem Phys 2013; 15:20326-32. [DOI: 10.1039/c3cp53454e] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Sun K, Zhao B, Murugesan V, Kumar A, Zeng K, Subbiah J, Wong WWH, Jones DJ, Ouyang J. High-performance polymer solar cells with a conjugated zwitterion by solution processing or thermal deposition as the electron-collection interlayer. ACTA ACUST UNITED AC 2012. [DOI: 10.1039/c2jm35221d] [Citation(s) in RCA: 69] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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