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Hu D, Ji X, Zhu J, Xu J. Crystallization-dictated assembly of block copolymers and nanoparticles under three-dimensional confinement. Chem Commun (Camb) 2024. [PMID: 39239768 DOI: 10.1039/d4cc03685a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/07/2024]
Abstract
Crystallization-dictated self-assembly of crystalline block copolymers (BCPs) in solution has been utilized to produce many impressive nanostructures. However, when the assembly of crystalline BCPs happens in a three-dimensional (3D) confined space, predicting the self-assembly structure of BCPs becomes challenging due to the competition between crystallization and microphase separation. In this feature article, we summarize the recent progress in the self-assembly of crystalline BCPs under confinement, emphasizing the impact of crystallization behavior on the assembly structure. Furthermore, we highlight the crystallization-directed assembly of inorganic nanoparticles (NPs), either by pre-assembling crystalline polymers as templates or using crystalline polymer chain segments as ligands. By exploring the impact of crystallization behavior on the assembled structure of BCPs and NPs, it is helpful to predict and manipulate the properties of polymer/nanoparticle composites, thereby enabling the precise design of polymer metamaterials.
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Affiliation(s)
- Dengwen Hu
- Key Laboratory of Materials Chemistry for Energy Conversion and Storage of Ministry of Education (HUST), State Key Laboratory of Materials Processing and Die & Mold Technology, and Hubei Key Laboratory of Materials Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology (HUST), Wuhan 430074, China.
| | - Xinyu Ji
- Key Laboratory of Materials Chemistry for Energy Conversion and Storage of Ministry of Education (HUST), State Key Laboratory of Materials Processing and Die & Mold Technology, and Hubei Key Laboratory of Materials Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology (HUST), Wuhan 430074, China.
| | - Jintao Zhu
- Key Laboratory of Materials Chemistry for Energy Conversion and Storage of Ministry of Education (HUST), State Key Laboratory of Materials Processing and Die & Mold Technology, and Hubei Key Laboratory of Materials Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology (HUST), Wuhan 430074, China.
| | - Jiangping Xu
- Key Laboratory of Materials Chemistry for Energy Conversion and Storage of Ministry of Education (HUST), State Key Laboratory of Materials Processing and Die & Mold Technology, and Hubei Key Laboratory of Materials Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology (HUST), Wuhan 430074, China.
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2
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Xie Y, Dong X, Cai N, Yang F, Yao W, Huang L. Application of a Novel Au@ZIF-8 Composite in the Detection of Bisphenol A by Surface-Enhanced Raman Spectroscopy. Foods 2023; 12:foods12040813. [PMID: 36832886 PMCID: PMC9956950 DOI: 10.3390/foods12040813] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2022] [Revised: 02/06/2023] [Accepted: 02/09/2023] [Indexed: 02/16/2023] Open
Abstract
Bisphenol A (BPA) is an endocrine disruptor which is widely present in fish under the influence of environmental pollution. It is essential to establish a rapid detection method for BPA. Zeolitic imidazolate framework (ZIF-8) is a typical metal-organic framework material (MOFs) with a strong adsorption capacity, which can effectively adsorb harmful substances in food. Combining MOFs and surface-enhanced Raman spectroscopy (SERS) can achieve rapid and accurate screening of toxic substances. In this study, a rapid detection method for BPA was established by preparing a new reinforced substrate Au@ZIF-8. The SERS detection method was optimized by combining SERS technology with ZIF-8. The Raman peak at 1172 cm-1 was used as the characteristic quantitative peak, and the lowest detection concentration of BPA was as low as 0.1 mg/L. In the concentration range of 0.1~10 mg/L, the linear relationship between SERS peak intensity and the concentration of BPA was good, and R2 was 0.9954. This novel SERS substrate was proven to have great potential in rapidly detecting BPA in food.
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Affiliation(s)
- Yunfei Xie
- State Key Laboratory of Food Science and Technology, Jiangnan University, No. 1800 Lihu Avenue, Wuxi 214122, China
- School of Food Science and Technology, Jiangnan University, No. 1800 Lihu Avenue, Wuxi 214122, China
- School of Food and Health, Beijing Technology & Business University, 33 Fucheng Road, Haidian District, Beijing 100048, China
- Correspondence: ; Tel.: +86-0510-85912123
| | - Xianghui Dong
- State Key Laboratory of Food Science and Technology, Jiangnan University, No. 1800 Lihu Avenue, Wuxi 214122, China
- School of Food Science and Technology, Jiangnan University, No. 1800 Lihu Avenue, Wuxi 214122, China
| | - Nifei Cai
- State Key Laboratory of Food Science and Technology, Jiangnan University, No. 1800 Lihu Avenue, Wuxi 214122, China
- School of Food Science and Technology, Jiangnan University, No. 1800 Lihu Avenue, Wuxi 214122, China
| | - Fangwei Yang
- State Key Laboratory of Food Science and Technology, Jiangnan University, No. 1800 Lihu Avenue, Wuxi 214122, China
- School of Food Science and Technology, Jiangnan University, No. 1800 Lihu Avenue, Wuxi 214122, China
- School of Food and Health, Beijing Technology & Business University, 33 Fucheng Road, Haidian District, Beijing 100048, China
| | - Weirong Yao
- State Key Laboratory of Food Science and Technology, Jiangnan University, No. 1800 Lihu Avenue, Wuxi 214122, China
- School of Food Science and Technology, Jiangnan University, No. 1800 Lihu Avenue, Wuxi 214122, China
| | - Lijun Huang
- Wuxi Food Safety Inspection and Test Center, 35-210 Changjiang South Road, Wuxi 214142, China
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Yeo HJ, Yoon SY, Jo DY, Kim HM, Kwak J, Kim SP, Kim MJ, Yang H. Effective Blue Light-Absorbing AuAg Nanoparticles in InP Quantum Dots-Based Color Conversion. MATERIALS (BASEL, SWITZERLAND) 2022; 15:8455. [PMID: 36499950 PMCID: PMC9736556 DOI: 10.3390/ma15238455] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Revised: 11/20/2022] [Accepted: 11/24/2022] [Indexed: 06/17/2023]
Abstract
In typical color-by-blue mode-based quantum dot (QD) display devices, only part of the blue excitation light is absorbed by QD emitters, thus it is accompanied by the leakage of blue light through the devices. To address this issue, we offer, for the first time, the applicability of AuAg alloy nanoparticles (NPs) as effective blue light absorbers in InP QD-based color-by-blue platforms. For this, high-quality fluorescent green and red InP QDs with a double shell scheme of ZnSe/ZnS were synthesized and embedded in a transparent polymer film. Separately, a series of Au/Ag ratio-varied AuAg NPs with tunable plasmonic absorption peaks were synthesized. Among them, AuAg NPs possessing the most appropriate absorption peak with respect to spectral overlap with blue emission are chosen for the subsequent preparation of AuAg NP polymeric films with varied NP concentrations. A stack of AuAg NP polymeric film on top of InP QD film is then placed remotely on a blue light-emitting diode, successfully resulting in systematically progressive suppression of blue light leakage with increasing AuAg NP concentration. Furthermore, the beneficial function of the AuAg NP polymeric overlayer in mitigating undesirable QD excitation upon exposure to ambient lights was further examined.
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Affiliation(s)
- Hyo-Jin Yeo
- Department of Materials Science and Engineering, Hongik University, Seoul 04066, Republic of Korea
| | - Suk-Young Yoon
- Department of Materials Science and Engineering, Hongik University, Seoul 04066, Republic of Korea
| | - Dae-Yeon Jo
- Department of Materials Science and Engineering, Hongik University, Seoul 04066, Republic of Korea
| | - Hyun-Min Kim
- Department of Materials Science and Engineering, Hongik University, Seoul 04066, Republic of Korea
| | - Jeonghun Kwak
- Department of Electrical and Computer Engineering, Seoul National University, Seoul 08826, Republic of Korea
| | - Sung-Phil Kim
- Department of Biomedical Engineering, Ulsan National Institute of Science and Technology, Ulsan 44919, Republic of Korea
| | - Myung-Joon Kim
- Department of Big Data Application, Hannam University, Daejeon 34430, Republic of Korea
| | - Heesun Yang
- Department of Materials Science and Engineering, Hongik University, Seoul 04066, Republic of Korea
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Li S, He D, Li S, Chen R, Peng Y, Li S, Han D, Wang Y, Qin K, Ren S, Chen P, Gao Z. Magnetic Halloysite Nanotube-Based SERS Biosensor Enhanced with Au@Ag Core-Shell Nanotags for Bisphenol A Determination. BIOSENSORS 2022; 12:387. [PMID: 35735535 PMCID: PMC9221462 DOI: 10.3390/bios12060387] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/04/2022] [Revised: 05/30/2022] [Accepted: 05/30/2022] [Indexed: 06/15/2023]
Abstract
Bisphenol A (BPA) has emerged as a contaminant of concern because long-term exposure may affect the human endocrine system. Herein, a novel aptamer sensor based on magnetic separation and surface-enhanced Raman scattering (SERS) is proposed for the extremely sensitive and specific detection of trace BPA. Moreover, the capture unit was prepared by immobilizing thiolated (SH)-BPA aptamer complementary DNA on AuNP-coated magnetic halloysite nanotubes (MNTs@AuNPs), and SH-BPA aptamer-modified Au@4-MBA@Ag core-shell SERS nanotags acted as signal units. By the complementary pairing of the BPA aptamer and the corresponding DNA, MNTs@AuNPs and Au@4-MBA@AgCS were linked together through hybridization-ligation, which acted as the SERS substrate. In the absence of BPA, the constructed aptamer sensor generated electromagnetic enhancement and plasmon coupling to improve the sensitivity of SERS substrates. Owing to the high affinity between BPA and the aptamer, the aptamer probe bound to BPA was separated from the capture unit by an externally-induced magnetic field. Thus, the Raman intensity of the MNTs@AuNP-Ag@AuCS core-satellite assemblies was negatively correlated with the BPA concentration. High sensitivity measurements of BPA might be performed by determining the decline in SERS signal strength together with concentration variations. The proposed aptasensor is a promising biosensing platform for BPA detection.
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Affiliation(s)
- Sen Li
- Tianjin Key Laboratory of Risk Assessment and Control Technology for Environment and Food Safety, Tianjin Institute of Environmental and Operational Medicine, Tianjin 300050, China; (S.L.); (D.H.); (S.L.); (R.C.); (Y.P.); (S.L.); (D.H.); (Y.W.); (K.Q.); (S.R.)
| | - Defu He
- Tianjin Key Laboratory of Risk Assessment and Control Technology for Environment and Food Safety, Tianjin Institute of Environmental and Operational Medicine, Tianjin 300050, China; (S.L.); (D.H.); (S.L.); (R.C.); (Y.P.); (S.L.); (D.H.); (Y.W.); (K.Q.); (S.R.)
- School of Food Science and Engineering, Jilin Agricultural University, Changchun 130118, China
| | - Shuning Li
- Tianjin Key Laboratory of Risk Assessment and Control Technology for Environment and Food Safety, Tianjin Institute of Environmental and Operational Medicine, Tianjin 300050, China; (S.L.); (D.H.); (S.L.); (R.C.); (Y.P.); (S.L.); (D.H.); (Y.W.); (K.Q.); (S.R.)
- State Key Laboratory of Food Nutrition and Safety, Tianjin University of Science & Technology, Tianjin 300457, China
| | - Ruipeng Chen
- Tianjin Key Laboratory of Risk Assessment and Control Technology for Environment and Food Safety, Tianjin Institute of Environmental and Operational Medicine, Tianjin 300050, China; (S.L.); (D.H.); (S.L.); (R.C.); (Y.P.); (S.L.); (D.H.); (Y.W.); (K.Q.); (S.R.)
- State Key Laboratory of Food Nutrition and Safety, Tianjin University of Science & Technology, Tianjin 300457, China
| | - Yuan Peng
- Tianjin Key Laboratory of Risk Assessment and Control Technology for Environment and Food Safety, Tianjin Institute of Environmental and Operational Medicine, Tianjin 300050, China; (S.L.); (D.H.); (S.L.); (R.C.); (Y.P.); (S.L.); (D.H.); (Y.W.); (K.Q.); (S.R.)
| | - Shuang Li
- Tianjin Key Laboratory of Risk Assessment and Control Technology for Environment and Food Safety, Tianjin Institute of Environmental and Operational Medicine, Tianjin 300050, China; (S.L.); (D.H.); (S.L.); (R.C.); (Y.P.); (S.L.); (D.H.); (Y.W.); (K.Q.); (S.R.)
| | - Dianpeng Han
- Tianjin Key Laboratory of Risk Assessment and Control Technology for Environment and Food Safety, Tianjin Institute of Environmental and Operational Medicine, Tianjin 300050, China; (S.L.); (D.H.); (S.L.); (R.C.); (Y.P.); (S.L.); (D.H.); (Y.W.); (K.Q.); (S.R.)
| | - Yu Wang
- Tianjin Key Laboratory of Risk Assessment and Control Technology for Environment and Food Safety, Tianjin Institute of Environmental and Operational Medicine, Tianjin 300050, China; (S.L.); (D.H.); (S.L.); (R.C.); (Y.P.); (S.L.); (D.H.); (Y.W.); (K.Q.); (S.R.)
| | - Kang Qin
- Tianjin Key Laboratory of Risk Assessment and Control Technology for Environment and Food Safety, Tianjin Institute of Environmental and Operational Medicine, Tianjin 300050, China; (S.L.); (D.H.); (S.L.); (R.C.); (Y.P.); (S.L.); (D.H.); (Y.W.); (K.Q.); (S.R.)
| | - Shuyue Ren
- Tianjin Key Laboratory of Risk Assessment and Control Technology for Environment and Food Safety, Tianjin Institute of Environmental and Operational Medicine, Tianjin 300050, China; (S.L.); (D.H.); (S.L.); (R.C.); (Y.P.); (S.L.); (D.H.); (Y.W.); (K.Q.); (S.R.)
| | - Ping Chen
- School of Food Science and Engineering, Jilin Agricultural University, Changchun 130118, China
| | - Zhixian Gao
- Tianjin Key Laboratory of Risk Assessment and Control Technology for Environment and Food Safety, Tianjin Institute of Environmental and Operational Medicine, Tianjin 300050, China; (S.L.); (D.H.); (S.L.); (R.C.); (Y.P.); (S.L.); (D.H.); (Y.W.); (K.Q.); (S.R.)
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5
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Influence of nanostructure geometry on light trapping in solar cells. APPLIED NANOSCIENCE 2022. [DOI: 10.1007/s13204-021-01699-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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6
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Sharma RK, Yadav S, Dutta S, Kale HB, Warkad IR, Zbořil R, Varma RS, Gawande MB. Silver nanomaterials: synthesis and (electro/photo) catalytic applications. Chem Soc Rev 2021; 50:11293-11380. [PMID: 34661205 PMCID: PMC8942099 DOI: 10.1039/d0cs00912a] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
In view of their unique characteristics and properties, silver nanomaterials (Ag NMs) have been used not only in the field of nanomedicine but also for diverse advanced catalytic technologies. In this comprehensive review, light is shed on general synthetic approaches encompassing chemical reduction, sonochemical, microwave, and thermal treatment among the preparative methods for the syntheses of Ag-based NMs and their catalytic applications. Additionally, some of the latest innovative approaches such as continuous flow integrated with MW and other benign approaches have been emphasized that ultimately pave the way for sustainability. Moreover, the potential applications of emerging Ag NMs, including sub nanomaterials and single atoms, in the field of liquid-phase catalysis, photocatalysis, and electrocatalysis as well as a positive role of Ag NMs in catalytic reactions are meticulously summarized. The scientific interest in the synthesis and applications of Ag NMs lies in the integrated benefits of their catalytic activity, selectivity, stability, and recovery. Therefore, the rise and journey of Ag NM-based catalysts will inspire a new generation of chemists to tailor and design robust catalysts that can effectively tackle major environmental challenges and help to replace noble metals in advanced catalytic applications. This overview concludes by providing future perspectives on the research into Ag NMs in the arena of electrocatalysis and photocatalysis.
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Affiliation(s)
- Rakesh Kumar Sharma
- Green Chemistry Network Centre, University of Delhi, New Delhi-110007, India.
| | - Sneha Yadav
- Green Chemistry Network Centre, University of Delhi, New Delhi-110007, India.
| | - Sriparna Dutta
- Green Chemistry Network Centre, University of Delhi, New Delhi-110007, India.
| | - Hanumant B Kale
- Department of Industrial and Engineering Chemistry, Institute of Chemical Technology, Mumbai-Marathwada Campus, Jalna-431213, Maharashtra, India.
| | - Indrajeet R Warkad
- Department of Industrial and Engineering Chemistry, Institute of Chemical Technology, Mumbai-Marathwada Campus, Jalna-431213, Maharashtra, India.
| | - Radek Zbořil
- Regional Centre of Advanced Technologies and Materials, Czech Advanced Technology and Research Institute, Palacký University, Šlechtitelů 27, 779 00 Olomouc, Czech Republic
- Nanotechnology Centre, CEET, VŠB-Technical University of Ostrava, 17. listopadu 2172/15, 708 00 Ostrava-Poruba, Czech Republic
| | - Rajender S Varma
- Regional Centre of Advanced Technologies and Materials, Czech Advanced Technology and Research Institute, Palacký University, Šlechtitelů 27, 779 00 Olomouc, Czech Republic
- U. S. Environmental Protection Agency, ORD, Center for Environmental Solutions and Emergency Response Water Infrastructure Division/Chemical Methods and Treatment Branch, 26 West Martin Luther King Drive, MS 483 Cincinnati, Ohio 45268, USA.
| | - Manoj B Gawande
- Department of Industrial and Engineering Chemistry, Institute of Chemical Technology, Mumbai-Marathwada Campus, Jalna-431213, Maharashtra, India.
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Singh J, Soni R. Efficient charge separation in Ag nanoparticles functionalized ZnO nanoflakes/CuO nanoflowers hybrids for improved photocatalytic and SERS activity. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.127005] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Gaidhani NG, Patra S, Chandwadkar HS, Sen D, Majumder C, Ramagiri SV, Bellare JR. Probing Kinetics and Mechanism of Formation of Mixed Metallic Nanoparticles in a Polymer Membrane by Galvanic Replacement between Two Immiscible Metals: Case Study of Nickel/Silver Nanoparticle Synthesis. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:1637-1650. [PMID: 33496595 DOI: 10.1021/acs.langmuir.0c02311] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Galvanic replacement between metals has received notable research interest for the synthesis of heterometallic nanostructures. The growth pattern of the nanostructures depends on several factors such as extent of lattice mismatch, adhesive interaction between the metals, cohesive forces of the individual metals, etc. Due to the difficulties in probing ultrafast kinetics of the galvanic replacement reaction and particle growth in solution, real-time mechanistic investigations are often limited. As a result, the growth mechanism of one metal on the surface of another metal at the nanoscale is poorly understood so far. In the present work, we could successfully probe the galvanic replacement of silver ions with nickel nanoparticles, stabilized in a polymer membrane, using two complementary methods, namely, small-angle X-ray scattering (SAXS) and radiolabeling, and the results are supported by density functional theory (DFT) computations. The silver-nickel system has been chosen for the present investigation because of the high degree of bulk immiscibility caused by the large lattice mismatch (15.9%) and the weak adhesive interaction, which makes it a perfect model system for immiscible metal pairs. Membrane, as a host medium, plays a crucial role in retarding the kinetics of atomic and particle rearrangements (nucleation and growth) due to slower mobility of the atoms (monomers) and particles within the polymer network. This allowed us to examine the real-time concentration of silver monomers during galvanic replacement of silver ions with nickel nanoparticles and evolution of Ni/Ag nanoparticles. From combined experiment and DFT computations, it has been demonstrated, for the first time to the best of our knowledge, that the majority of silver atoms, which are produced on the nickel nanoparticle surface by galvanic reactions, do not form traditional core-shell nanostructures with nickel and undergo a self-governing sequential nucleation and growth of silver nanoparticles via formation of intermediate prenucleation silver clusters, leading to the formation of mixed metallic nanoparticles in the membrane. The surface of NiNPs has a heterogeneous effect on the silver nucleation pathway, which is evident from the reduced critical free energy barrier of nucleation (ΔGcrit). The present work establishes an original mechanistic pathway based on a sequential nucleation model for formation of mixed metallic nanoparticles by the galvanic replacement route, which opens up future possibilities for size-controlled synthesis in mixed systems.
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Affiliation(s)
- Nikita G Gaidhani
- Radiochemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India
- Department of Chemistry, Sandip University, Nashik 422213, Maharashtra, India
| | - Sabyasachi Patra
- Radiochemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India
| | - Hemant S Chandwadkar
- Radiochemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India
- Department of Chemistry, Sandip University, Nashik 422213, Maharashtra, India
| | - Debasis Sen
- Solid State Physics Division, Bhabha Atomic Research Centre, Mumbai 400085, India
- Homi Bhabha National Institute, Anushaktinagar, Mumbai 400094, India
| | - Chiranjib Majumder
- Chemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India
- Homi Bhabha National Institute, Anushaktinagar, Mumbai 400094, India
| | - Shobha V Ramagiri
- Department of Chemical Engineering, IIT Bombay, Powai, Mumbai 400076, India
| | - Jayesh R Bellare
- Department of Chemical Engineering, IIT Bombay, Powai, Mumbai 400076, India
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Stolle HLKS, Csáki A, Dellith J, Fritzsche W. Modification of Surface Bond Au Nanospheres by Chemically and Plasmonically Induced Pd Deposition. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:245. [PMID: 33477641 PMCID: PMC7831503 DOI: 10.3390/nano11010245] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Revised: 01/14/2021] [Accepted: 01/15/2021] [Indexed: 11/16/2022]
Abstract
In this work we investigated methods of modifying gold nanospheres bound to a silicon surface by depositing palladium onto the surfaces of single nanoparticles. Bimetallic Au-Pd nanoparticles can thus be gained for use in catalysis or sensor technology. For Pd deposition, two methods were chosen. The first method was the reduction of palladium acetate by ascorbic acid, in which the amounts of palladium acetate and ascorbic acid were varied. In the second method we utilized light-induced metal deposition by making use of the plasmonic effect. Through this method, the surface bond nanoparticles were irradiated with light of wavelengths capable of inducing plasmon resonance. The generation of hot electrons on the particle surface then reduced the palladium acetate in the vicinity of the gold nanoparticle, resulting in palladium-covered gold nanospheres. In our studies we demonstrated the effect of both enhancement methods by monitoring the particle heights over enhancement time by atomic force microscopy (AFM), and investigated the influence of ascorbic acid/Pd acetate concentration as well as the impact of the irradiated wavelengths on the enhancement effect. It could thus be proven that both methods were valid for obtaining a deposition of Pd on the surface of the gold nanoparticles. Deposition of Pd on the gold particles using the light-assisted method could be observed, indicating the impact of the plasmonic effect and hot electron for Pd acetate reduction on the gold particle surface. In the case of the reduction method with ascorbic acid, in addition to Pd deposition on the gold nanoparticle surface, larger pure Pd particles and extended clusters were also generated. The reduction with ascorbic acid however led to a considerably thicker Pd layer of up to 54 nm in comparison to up to 11 nm for the light-induced metal deposition with light resonant to the particle absorption wavelength. Likewise, it could be demonstrated that light of non-resonant wavelengths was not capable of initiating Pd deposition, since a growth of only 1.6 nm (maximum) was observed for the Pd layer.
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Affiliation(s)
- Heike Lisa Kerstin Stephanie Stolle
- Department of Nanobiophotonics, Leibniz Institute of Photonic Technology (IPHT), Albert-Einstein-Straße 9, D-07745 Jena, Germany; (H.L.K.S.S.); (A.C.)
| | - Andrea Csáki
- Department of Nanobiophotonics, Leibniz Institute of Photonic Technology (IPHT), Albert-Einstein-Straße 9, D-07745 Jena, Germany; (H.L.K.S.S.); (A.C.)
| | - Jan Dellith
- Competence Center for Micro- and Nanotechnologies, Leibniz Institute of Photonic Technology (IPHT), Albert-Einstein-Straße 9, D-07745 Jena, Germany;
| | - Wolfgang Fritzsche
- Department of Nanobiophotonics, Leibniz Institute of Photonic Technology (IPHT), Albert-Einstein-Straße 9, D-07745 Jena, Germany; (H.L.K.S.S.); (A.C.)
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10
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Raleie N, Suru John‐Denk V, Wonderboy Hlongwa N, Douman SF, Iwuoha EI. Photoelectrochemistry of Poly‐3‐hexylthiophene and Stannum Chromium Bimetallic Nanoparticle Heterojunction Blend. ELECTROANAL 2020. [DOI: 10.1002/elan.202060312] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Naledi Raleie
- SensorLab (University of the Western Cape Sensor Laboratoeries) Robert Sobukwe Road, Bellville 7535 Cape Town South Africa
| | - Vivian Suru John‐Denk
- SensorLab (University of the Western Cape Sensor Laboratoeries) Robert Sobukwe Road, Bellville 7535 Cape Town South Africa
| | - Ntuthuko Wonderboy Hlongwa
- SensorLab (University of the Western Cape Sensor Laboratoeries) Robert Sobukwe Road, Bellville 7535 Cape Town South Africa
| | - Samantha Fiona Douman
- SensorLab (University of the Western Cape Sensor Laboratoeries) Robert Sobukwe Road, Bellville 7535 Cape Town South Africa
| | - Emmanuel I. Iwuoha
- SensorLab (University of the Western Cape Sensor Laboratoeries) Robert Sobukwe Road, Bellville 7535 Cape Town South Africa
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11
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Phetsang S, Nootchanat S, Lertvachirapaiboon C, Ishikawa R, Shinbo K, Kato K, Mungkornasawakul P, Ounnunkad K, Baba A. Enhancement of organic solar cell performance by incorporating gold quantum dots (AuQDs) on a plasmonic grating. NANOSCALE ADVANCES 2020; 2:2950-2957. [PMID: 36132386 PMCID: PMC9419240 DOI: 10.1039/d0na00169d] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Accepted: 05/07/2020] [Indexed: 06/12/2023]
Abstract
The incorporation of metallic nanoobjects into devices allows to increase light harvesting, which increases the device performance. In this study, we used a combination of gold quantum dots and grating-coupled surface plasmon resonance (GCSPR) to improve the performance of organic solar cells (OSCs) with a poly(3-hexylthiophene-2,5-diyl) (P3HT):[6,6]-phenyl C61 butyric acid methyl ester (PCBM) photoactive layer. Gold quantum dots with a green fluorescent color (green-AuQD) were loaded into a hole transport layer (HTL) aiming to harvest photons in the UV region and emit visible light into the neighboring photoactive layer. Meanwhile, plasmonic grating structures, which were created on the photoactive layer surfaces via the nanoimprinting technique, provided an enhancement effect through light scattering and GCSPR. Thus, an excellent enhancement of OSC efficiency with a significant increase in short circuit photocurrent (J SC) and power conversion efficiency (PCE) in comparison to that of the reference cell was achieved. The fabricated device provides a J SC value as high as 8.41 mA cm-2 (a 14.11% enhancement) and a PCE value of 3.91% (a 19.57% enhancement). The systematic study clearly reveals that the remarkable enhancement of OSC efficiency is achieved by incorporating both AuQD and plasmonic grating.
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Affiliation(s)
- Sopit Phetsang
- Graduate School of Science and Technology, Niigata University 8050 Ikarashi-2-nocho, Nishi-ku Niigata 950-2181 Japan
- Department of Chemistry and Center of Excellence for Innovation in Chemistry (PERCH-CIC), Faculty of Science, Chiang Mai University Chiang Mai 50200 Thailand
| | - Supeera Nootchanat
- Graduate School of Science and Technology, Niigata University 8050 Ikarashi-2-nocho, Nishi-ku Niigata 950-2181 Japan
| | - Chutiparn Lertvachirapaiboon
- Graduate School of Science and Technology, Niigata University 8050 Ikarashi-2-nocho, Nishi-ku Niigata 950-2181 Japan
| | - Ryousuke Ishikawa
- Graduate School of Science and Technology, Niigata University 8050 Ikarashi-2-nocho, Nishi-ku Niigata 950-2181 Japan
| | - Kazunari Shinbo
- Graduate School of Science and Technology, Niigata University 8050 Ikarashi-2-nocho, Nishi-ku Niigata 950-2181 Japan
| | - Keizo Kato
- Graduate School of Science and Technology, Niigata University 8050 Ikarashi-2-nocho, Nishi-ku Niigata 950-2181 Japan
| | - Pitchaya Mungkornasawakul
- Department of Chemistry and Center of Excellence for Innovation in Chemistry (PERCH-CIC), Faculty of Science, Chiang Mai University Chiang Mai 50200 Thailand
| | - Kontad Ounnunkad
- Department of Chemistry and Center of Excellence for Innovation in Chemistry (PERCH-CIC), Faculty of Science, Chiang Mai University Chiang Mai 50200 Thailand
- Center of Excellence for Innovation in Chemistry, Faculty of Science, Center of Excellence in Materials Science and Technology, Research Center on Chemistry for Development of Health Promoting Products from Northern Resources, Chiang Mai University Chiang Mai 50200 Thailand
| | - Akira Baba
- Graduate School of Science and Technology, Niigata University 8050 Ikarashi-2-nocho, Nishi-ku Niigata 950-2181 Japan
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12
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Niu X, Zhang W, Huang Y, Wang L, Li Z, Sun W. An electrochemical sensing platform amplified with a Au@Ag nanoparticle-decorated three-dimensional N-doped graphene aerogel for ultrasensitive determination of baicalein. NEW J CHEM 2020. [DOI: 10.1039/d0nj03827j] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
A novel electrochemical method for highly sensitive determination of baicalein was developed with Au@Ag/3DNGA as signal amplifier.
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Affiliation(s)
- Xueliang Niu
- College of Chemistry and Chemical Engineering
- Shandong University of Technology
- Zibo 255049
- P. R. China
| | - Weili Zhang
- College of Pharmacy
- Key Laboratory of Biomedical Engineering and Technology in Universities of Shandong
- Qilu Medical University
- Zibo 255213
- P. R. China
| | - Yan Huang
- College of Chemistry and Chemical Engineering
- Shandong University of Technology
- Zibo 255049
- P. R. China
| | - Likai Wang
- College of Chemistry and Chemical Engineering
- Shandong University of Technology
- Zibo 255049
- P. R. China
| | - Zhongfang Li
- College of Chemistry and Chemical Engineering
- Shandong University of Technology
- Zibo 255049
- P. R. China
| | - Wei Sun
- Key Laboratory of Laser Technology and Optoelectronic Functional Materials of Hainan Province
- College of Chemistry and Chemical Engineering
- Hainan Normal University
- Haikou 571158
- P. R. China
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13
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Subhan FE, Khan AD, Hilal FE, Khan AD, Khan SD, Ullah R, Imran M, Noman M. Efficient broadband light absorption in thin-film a-Si solar cell based on double sided hybrid bi-metallic nanogratings. RSC Adv 2020; 10:11836-11842. [PMID: 35496636 PMCID: PMC9050485 DOI: 10.1039/c9ra10232a] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2019] [Revised: 04/30/2020] [Accepted: 03/16/2020] [Indexed: 11/21/2022] Open
Abstract
Thin film solar cells (TFSCs) suffer from poor light absorption due to their small thickness, which limits most of their practical applications. Surface plasmons generated by plasmonic nanoparticles offer an opportunity for a low-cost and scalable method to optically engineer TFSCs. Here, a systematic simulation study is conducted to improve the absorption efficiency of amorphous silicon (a-Si) by incorporating double sided plasmonic bi-metallic (Al–Cu) nanogratings. The upper pair of the gratings together with an antireflection coating are responsible for minimizing the reflection losses and enhancing the absorption of low wavelength visible light spectrum in the active layer. The bottom pairs are accountable for increasing the absorption of long wavelength photons in the active layer. In this way, a-Si, which is a poor absorber in the long wavelength region, is now able to absorb broadband light from 670–1060 nm with an average simulated absorption rate of more than 70%, and improved simulated photocurrent density of 22.30 mA cm−2, respectively. Moreover, simulation results show that the proposed structure reveals many other excellent properties such as small incident angle insensitivity, tunability, and remarkable structural parameters tolerance. Such a design concept is quite versatile and can be extended to other TFSCs. Thin film solar cells (TFSCs) suffer from poor light absorption due to their small thickness, which limits most of their practical applications.![]()
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Affiliation(s)
- Fazal E. Subhan
- Center for Advanced Studies in Energy
- University of Engineering & Technology
- Peshawar
- Pakistan
| | - Aimal Daud Khan
- College of Energy
- Soochow Institute for Energy and Materials InnovationS (SIEMIS)
- Soochow University
- Suzhou 215006
- China
| | - Fazal E. Hilal
- Center for Advanced Studies in Energy
- University of Engineering & Technology
- Peshawar
- Pakistan
| | - Adnan Daud Khan
- Center for Advanced Studies in Energy
- University of Engineering & Technology
- Peshawar
- Pakistan
| | - Sultan Daud Khan
- Department of Computer Science
- National University of Technology
- Islamabad
- Pakistan
| | - Rehan Ullah
- College of Computer
- Qassim University
- Al-Mulida 51431
- Saudi Arabia
| | - Muhammad Imran
- Department of Electrical Engineering
- Military College of Signals
- National University of Sciences and Technology (NUST)
- Islamabad
- Pakistan
| | - Muhammad Noman
- Center for Advanced Studies in Energy
- University of Engineering & Technology
- Peshawar
- Pakistan
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14
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Sui M, Kunwar S, Pandey P, Pandit S, Lee J. Systematic investigation on quad-metallic AgAuPdPt and tri-metallic AuPdPt NPs through the solid-state dewetting of quad-layer Ag/Au/Pd/Pt thin films on c-plane sapphire. PLoS One 2019; 14:e0224208. [PMID: 31634370 PMCID: PMC6802835 DOI: 10.1371/journal.pone.0224208] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2019] [Accepted: 10/08/2019] [Indexed: 11/18/2022] Open
Abstract
Multi-metallic alloy nanoparticles (MNPs) can offer valuable opportunities to meet the various demands of applications. MNPs consist of various noble metallic elements can combine diverse electronic, optical and catalytic properties in a single NP configuration, thus taking the advantage of each element. In this paper, the fabrication of tri- and quad- metallic alloy NPs with noble elements (Ag, Au, Pd and Pt) and the corresponding localized surface plasmon resonance (LPSR) properties are systematically demonstrated. Tri- and quad-metallic alloy NPs come in various size and configurations by the solid-state dewetting of Ag/Au/Pd/Pt quad-layers on sapphire (0001). Tri-metallic AuPdPt NPs are demonstrated by the systematic control of growth temperature along with the significant Ag atom sublimation. Strongly enhanced and tunable LPSR is exerted in the UV-VIS regions depending upon the size, configuration, spacing and elemental composition of the MNPs. The size dependent LSPR response of MNPs is discussed based on the absorption and scattering along with the excitation of dipolar, quadrupolar, high order and multipolar resonance modes. The MNPs exhibit much stronger and dynamic LSPR bands as compared with the monometallic Pt and Pd NPs with the comparable size and configurations.
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Affiliation(s)
- Mao Sui
- Institute of Hybrid Materials, College of Materials Science and Engineering, Qingdao University, Qingdao, P. R. China
- Department of Electronic Engineering, College of Electronics and Information, Kwangwoon University, Nowon-gu Seoul, South Korea
- * E-mail: (MS); (JL)
| | - Sundar Kunwar
- Department of Electronic Engineering, College of Electronics and Information, Kwangwoon University, Nowon-gu Seoul, South Korea
| | - Puran Pandey
- Department of Electronic Engineering, College of Electronics and Information, Kwangwoon University, Nowon-gu Seoul, South Korea
| | - Sanchaya Pandit
- Department of Electronic Engineering, College of Electronics and Information, Kwangwoon University, Nowon-gu Seoul, South Korea
| | - Jihoon Lee
- Department of Electronic Engineering, College of Electronics and Information, Kwangwoon University, Nowon-gu Seoul, South Korea
- * E-mail: (MS); (JL)
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15
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Ho WJ, Chen GY, Liu JJ. Enhancing Photovoltaic Performance of Plasmonic Silicon Solar Cells with ITO Nanoparticles Dispersed in SiO 2 Anti-Reflective Layer. MATERIALS 2019; 12:ma12101614. [PMID: 31100917 PMCID: PMC6566791 DOI: 10.3390/ma12101614] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/29/2019] [Revised: 05/15/2019] [Accepted: 05/16/2019] [Indexed: 11/22/2022]
Abstract
In this study, we sought to enhance the photovoltaic performance of silicon solar cells by coating them (via the spin-on film technique) with a layer of SiO2 containing plasmonic indium-tin-oxide nanoparticles (ITO-NPs) of various concentrations. We demonstrated that the surface plasmon resonance absorption, surface morphology, and transmittance of the ITO-NPs dispersed in SiO2 layer at various concentrations (1–7 wt%). We also assessed the plasmonic scattering effects of ITO-NPs within a layer of SiO2 with and without a sub-layer of ITO in terms of optical reflectance, external quantum efficiency, and photovoltaic current-voltage under air mass (AM) 1.5G solar simulation. Compared to an uncoated reference silicon solar cell, applying a layer of SiO2 containing 3 wt% ITO-NPs improved efficiency by 17.90%, whereas applying the same layer over a sub-layer of ITO improved efficiency by 33.27%, due to the combined effects of anti-reflection and plasmonic scattering.
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Affiliation(s)
- Wen-Jeng Ho
- Department of Electro-Optical Engineering, National Taipei University of Technology, No. 1, Section 3, Zhongxial East Road, Taipei 10608, Taiwan.
| | - Guan-Yu Chen
- Department of Electro-Optical Engineering, National Taipei University of Technology, No. 1, Section 3, Zhongxial East Road, Taipei 10608, Taiwan.
| | - Jheng-Jie Liu
- Department of Electro-Optical Engineering, National Taipei University of Technology, No. 1, Section 3, Zhongxial East Road, Taipei 10608, Taiwan.
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16
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Tuning the Resonant Frequency of a Surface Plasmon by Double-Metallic Ag/Au Nanoparticles for High-Efficiency Green Light-Emitting Diodes. APPLIED SCIENCES-BASEL 2019. [DOI: 10.3390/app9020305] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Currently, the internal quantum efficiency (IQE) of GaInN-based green light-emitting diodes (LEDs) is still low. To overcome this problem, surface plasmon (SP)-enhanced LEDs have been intensively studied for the last 15 years. For an SP effect in green LEDs, Au and Ag are typically employed as the plasmonic materials. However, the resonance wavelength is determined by their material constants, which are theoretically fixed at ~537 nm for Au and ~437 nm for Ag. In this study, we aimed to tune the SP resonant wavelength using double-metallic nanoparticles (NPs) composed of Au and Ag to match the SP resonance wavelength to the LED emission wavelength to consequently improve the IQE of green LEDs. To form double-metallic NPs, Au/Ag multilayers were deposited on a GaN layer and then thermally annealed. We changed the thicknesses of the multilayers to control the Ag/Au ratio in the NPs. We show that the SP resonant wavelength could be tuned using our approach. We also demonstrate that the enhancement of the IQE in SP-enhanced LEDs was strongly dependent on the SP resonant wavelength. Finally, the highest IQE was achieved by matching the SP resonant wavelength to the LED emission wavelength.
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17
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Nair AT, Palappra SP, Reddy VS. Influence of Ag Nanostructure Location on the Absorption Enhancement in Polymer Solar Cells. ACS APPLIED MATERIALS & INTERFACES 2018; 10:32483-32491. [PMID: 30168314 DOI: 10.1021/acsami.8b13560] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The optical absorption enhancement in Ag nanocube (NC)- and nanosphere (NS)-embedded poly[ N-9'-heptadecanyl-2,7-carbazole- alt-5,5-(4',7'-di-2-thienyl-2',1',3'-benzothiadiazole)]:[6,6]-phenyl C71-butyric acid methyl ester active layer was calculated using three-dimensional finite-difference time domain simulations. The simulations were carried out by incorporating Ag nanostructures as a two-dimensional array at various locations in the active layer matrix. High absorption enhancements of 53 and 61% were achieved with NSs and NCs, respectively, when they were incorporated at the top portion of the active layer. The influence of various passivation layers on the absorption enhancement was also investigated. The simulation results revealed that the absorption enhancement is mainly due to the near-field enhancement around the nanostructures and the backward reflection of incident light from the nanostructure array.
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Affiliation(s)
- Abhijith T Nair
- Organic and Nanoelectronics Laboratory, Department of Physics , National Institute of Technology Calicut (NITC) , Calicut 673 601 , Kerala , India
| | - Shamjid P Palappra
- Organic and Nanoelectronics Laboratory, Department of Physics , National Institute of Technology Calicut (NITC) , Calicut 673 601 , Kerala , India
| | - V S Reddy
- Organic and Nanoelectronics Laboratory, Department of Physics , National Institute of Technology Calicut (NITC) , Calicut 673 601 , Kerala , India
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18
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Toro MCG, Schlegel JP, Giraldo CHC. Radioactive Bimetallic Gold-Silver Nanoparticles Production in a Research Nuclear Reactor. ChemistrySelect 2018. [DOI: 10.1002/slct.201801685] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Maria Camila Garcia Toro
- Department of Mining and Nuclear Engineering; Missouri University of Science and Technology, 301 W. 14 St, Rolla; MO 65409 USA
| | - Joshua P. Schlegel
- Department of Mining and Nuclear Engineering; Missouri University of Science and Technology, 301 W. 14 St, Rolla; MO 65409 USA
| | - Carlos H. C. Giraldo
- Department of Mining and Nuclear Engineering; Missouri University of Science and Technology, 301 W. 14 St, Rolla; MO 65409 USA
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19
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Pandey P, Kunwar S, Sui M, Bastola S, Lee J. Modulation of Morphology and Optical Property of Multi-Metallic PdAuAg and PdAg Alloy Nanostructures. NANOSCALE RESEARCH LETTERS 2018; 13:151. [PMID: 29767305 PMCID: PMC5955875 DOI: 10.1186/s11671-018-2551-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/29/2018] [Accepted: 04/23/2018] [Indexed: 06/08/2023]
Abstract
In this work, the evolution of PdAg and PdAuAg alloy nanostructures is demonstrated on sapphire (0001) via the solid-state dewetting of multi-metallic thin films. Various surface configurations, size, and arrangements of bi- and tri-metallic alloy nanostructures are fabricated as a function of annealing temperature, annealing duration, film thickness, and deposition arrangements such as bi-layers (Pd/Ag), tri-layers (Pd/Au/Ag), and multi-layers (Pd/Au/Ag × 5). Specifically, the tri-layers film shows the gradual evolution of over-grown NPs, voids, wiggly nanostructures, and isolated PdAuAg alloy nanoparticles (NPs) along with the increased annealing temperature. In contrast, the multi-layers film with same thickness show the enhanced dewetting rate, which results in the formation of voids at relatively lower temperature, wider spacing, and structural regularity of alloy NPs at higher temperature. The dewetting enhancement is attributed to the increased number of interfaces and reduced individual layer thickness, which aid the inter-diffusion process at the initial stage. In addition, the time evolution of the Pd150 nm/Ag80 nm bi-layer films at constant temperature show the wiggly-connected and isolated PdAg alloy NPs. The overall evolution of alloy NPs is discussed based on the solid-state dewetting mechanism in conjunction with the diffusion, inter-diffusion, alloying, sublimation, Rayleigh instability, and surface energy minimization. Depending upon their surface morphologies, the bi- and tri-metallic alloy nanostructures exhibit the dynamic reflectance spectra, which show the formation of dipolar (above 700 nm) and quadrupolar resonance peaks (~ 380 nm) and wide dips in the visible region as correlated to the localized surface plasmon resonance (LSPR) effect. An absorption dip is readily shifted from ~ 510 to ~ 475 nm along with the decreased average size of alloy nanostructures.
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Affiliation(s)
- Puran Pandey
- College of Electronics and Information, Kwangwoon University, Nowon-gu, Seoul, 139-701 South Korea
| | - Sundar Kunwar
- College of Electronics and Information, Kwangwoon University, Nowon-gu, Seoul, 139-701 South Korea
| | - Mao Sui
- College of Electronics and Information, Kwangwoon University, Nowon-gu, Seoul, 139-701 South Korea
| | - Sushil Bastola
- College of Electronics and Information, Kwangwoon University, Nowon-gu, Seoul, 139-701 South Korea
| | - Jihoon Lee
- College of Electronics and Information, Kwangwoon University, Nowon-gu, Seoul, 139-701 South Korea
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20
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Sah PT, Chang WC, Chen JH, Wang HH, Chan LH. Bimetallic Ag‒Au‒Ag nanorods used to enhance efficiency of polymer solar cells. Electrochim Acta 2018. [DOI: 10.1016/j.electacta.2017.10.187] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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21
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Pandey P, Kunwar S, Sui M, Bastola S, Lee J. Investigation on the morphological and optical evolution of bimetallic Pd-Ag nanoparticles on sapphire (0001) by the systematic control of composition, annealing temperature and time. PLoS One 2017; 12:e0189823. [PMID: 29253017 PMCID: PMC5734721 DOI: 10.1371/journal.pone.0189823] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2017] [Accepted: 12/02/2017] [Indexed: 12/03/2022] Open
Abstract
Multi-metallic alloy nanoparticles (NPs) can offer additional opportunities for modifying the electronic, optical and catalytic properties by the control of composition, configuration and size of individual nanostructures that are consisted of more than single element. In this paper, the fabrication of bimetallic Pd-Ag NPs is systematically demonstrated via the solid state dewetting of bilayer thin films on c-plane sapphire by governing the temperature, time as well as composition. The composition of Pd-Ag bilayer remarkably affects the morphology of alloy nanostructures, in which the higher Ag composition, i.e. Pd0.25Ag0.75, leads to the enhanced dewetting of bilayers whereas the higher Pd composition (Pd0.75Ag0.25) hinders the dewetting. Depending on the annealing temperature, Pd-Ag alloy nanostructures evolve with a series of configurations, i.e. nucleation of voids, porous network, elongated nanoclusters and round alloy NPs. In addition, with the annealing time set, the gradual configuration transformation from the elongated to round alloy NPs as well as size reduction is demonstrated due to the enhanced diffusion and sublimation of Ag atoms. The evolution of various morphology of Pd-Ag nanostructures is described based on the surface diffusion and inter-diffusion of Pd and Ag adatoms along with the Ag sublimation, Rayleigh instability and energy minimization mechanism. The reflectance spectra of bimetallic Pd-Ag nanostructures exhibit various quadrupolar and dipolar resonance peaks, peak shifts and absorption dips owing to the surface plasmon resonance of nanostructures depending on the surface morphology. The intensity of reflectance spectra is gradually decreased along with the surface coverage and NP size evolution. The absorption dips are red-shifted towards the longer wavelength for the larger alloy NPs and vice-versa.
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Affiliation(s)
- Puran Pandey
- College of Electronics and Information, Kwangwoon University, Nowon-gu, Seoul, South Korea
| | - Sundar Kunwar
- College of Electronics and Information, Kwangwoon University, Nowon-gu, Seoul, South Korea
| | - Mao Sui
- College of Electronics and Information, Kwangwoon University, Nowon-gu, Seoul, South Korea
| | - Sushil Bastola
- College of Electronics and Information, Kwangwoon University, Nowon-gu, Seoul, South Korea
| | - Jihoon Lee
- College of Electronics and Information, Kwangwoon University, Nowon-gu, Seoul, South Korea.,Institute of Nanoscale Science and Engineering, University of Arkansas, Fayetteville, Arkansas, United States of America
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22
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Asapu R, Ciocarlan RG, Claes N, Blommaerts N, Minjauw M, Ahmad T, Dendooven J, Cool P, Bals S, Denys S, Detavernier C, Lenaerts S, Verbruggen SW. Plasmonic Near-Field Localization of Silver Core-Shell Nanoparticle Assemblies via Wet Chemistry Nanogap Engineering. ACS APPLIED MATERIALS & INTERFACES 2017; 9:41577-41585. [PMID: 29119785 DOI: 10.1021/acsami.7b13965] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Silver nanoparticles are widely used in the field of plasmonics because of their unique optical properties. The wavelength-dependent surface plasmon resonance gives rise to a strongly enhanced electromagnetic field, especially at so-called hot spots located in the nanogap in-between metal nanoparticle assemblies. Therefore, the interparticle distance is a decisive factor in plasmonic applications, such as surface-enhanced Raman spectroscopy (SERS). In this study, the aim is to engineer this interparticle distance for silver nanospheres using a convenient wet-chemical approach and to predict and quantify the corresponding enhancement factor using both theoretical and experimental tools. This was done by building a tunable ultrathin polymer shell around the nanoparticles using the layer-by-layer method, in which the polymer shell acts as the separating interparticle spacer layer. Comparison of different theoretical approaches and corroborating the results with SERS analytical experiments using silver and silver-polymer core-shell nanoparticle clusters as SERS substrates was also done. Herewith, an approach is provided to estimate the extent of plasmonic near-field enhancement both theoretically as well as experimentally.
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Affiliation(s)
- Ramesh Asapu
- Department of Bioscience Engineering, Campus Groenenborger, University of Antwerp , Groenenborgerlaan 171, Antwerp 2020, Belgium
| | - Radu-George Ciocarlan
- Department of Chemistry, Campus Drie Eiken, University of Antwerp , Antwerp 2610, Belgium
| | - Nathalie Claes
- Department of Physics, Campus Groenenborger, University of Antwerp , Antwerp 2020, Belgium
| | - Natan Blommaerts
- Department of Bioscience Engineering, Campus Groenenborger, University of Antwerp , Groenenborgerlaan 171, Antwerp 2020, Belgium
| | - Matthias Minjauw
- Department of Solid State Sciences, Ghent University , Ghent 9000, Belgium
| | - Tareq Ahmad
- Department of Solid State Sciences, Ghent University , Ghent 9000, Belgium
| | - Jolien Dendooven
- Department of Solid State Sciences, Ghent University , Ghent 9000, Belgium
| | - Pegie Cool
- Department of Chemistry, Campus Drie Eiken, University of Antwerp , Antwerp 2610, Belgium
| | - Sara Bals
- Department of Physics, Campus Groenenborger, University of Antwerp , Antwerp 2020, Belgium
| | - Siegfried Denys
- Department of Bioscience Engineering, Campus Groenenborger, University of Antwerp , Groenenborgerlaan 171, Antwerp 2020, Belgium
| | | | - Silvia Lenaerts
- Department of Bioscience Engineering, Campus Groenenborger, University of Antwerp , Groenenborgerlaan 171, Antwerp 2020, Belgium
| | - Sammy W Verbruggen
- Department of Bioscience Engineering, Campus Groenenborger, University of Antwerp , Groenenborgerlaan 171, Antwerp 2020, Belgium
- Center for Surface Chemistry and Catalysis, KU Leuven , Leuven 3000, Belgium
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23
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Fan Z, Zhang W, Ma Q, Yan L, Xu L, Fu Y. Light-Trapping Characteristics of Ag Nanoparticles for Enhancing the Energy Conversion Efficiency of Hybrid Solar Cells. ACS APPLIED MATERIALS & INTERFACES 2017; 9:35998-36008. [PMID: 28936866 DOI: 10.1021/acsami.7b10347] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
In this paper, we investigated the optical and electrical characteristics of hybrid solar cells using silicon pyramid/Ag nanoparticle and nanowire/Ag nanoparticle nanocomposite structures, which are obtained by the Ag-assisted electroless etching method. We introduced the application of the physical and chemical properties of Ag nanoparticles on four kinds of solar cells: silicon pyramid, silicon pyramid/PEDOT:PSS, silicon nanowire, and silicon nanowire/PEDOT:PSS. We simulated the absorption of these structures for different parameters. Furthermore, we also show the result of the current density-voltage (J-V) characterization of the sample with Ag nanoparticles, which exhibits an improvement of the power conversion efficiency (PCE) in contrast to the samples without Ag nanoparticles. It was found that the properties of light-trapping of Ag nanoparticles have a prominent impact on improving the PCE of hybrid solar cells.
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Affiliation(s)
- Zhiqiang Fan
- Center of Condensed Matter and Material Physics, School of Physics and Nuclear Energy Engineering, Beihang University , Beijing 100191, China
| | - Weijia Zhang
- Center of Condensed Matter and Material Physics, School of Physics and Nuclear Energy Engineering, Beihang University , Beijing 100191, China
| | - Qiang Ma
- Center of Condensed Matter and Material Physics, School of Physics and Nuclear Energy Engineering, Beihang University , Beijing 100191, China
| | - Lanqin Yan
- National Center for Nanoscience and Technology , Beijing 100190, China
| | - Lihua Xu
- National Center for Nanoscience and Technology , Beijing 100190, China
| | - Yaolong Fu
- China Ordnance Industrial Standardization Research Institute , Beijing 100189, China
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Affiliation(s)
- Kosei Ueno
- Research Institute for Electronic Science, Hokkaido University, Sapporo 001-0021, Japan
| | - Tomoya Oshikiri
- Research Institute for Electronic Science, Hokkaido University, Sapporo 001-0021, Japan
| | - Quan Sun
- Research Institute for Electronic Science, Hokkaido University, Sapporo 001-0021, Japan
| | - Xu Shi
- Research Institute for Electronic Science, Hokkaido University, Sapporo 001-0021, Japan
| | - Hiroaki Misawa
- Research Institute for Electronic Science, Hokkaido University, Sapporo 001-0021, Japan
- Department of Applied Chemistry, National Chiao Tung University, Hsinchu 30010, Taiwan
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25
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Lee SK, Tan CL, Lee YT. Light trapping enhancement induced by bimetallic non-alloyed nanoparticles on a disordered subwavelength flexible thin film crystalline silicon substrate using metal-assisted chemical etching. OPTICS LETTERS 2017; 42:431-434. [PMID: 28146494 DOI: 10.1364/ol.42.000431] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
We report the application of gold and silver (AuAg) bimetallic non-alloyed nanoparticles (BNNPs) on disordered subwavelength structures (d-SWSs). The combined advantages of the plasmonic structures and d-SWSs improved the light trapping performance of flexible thin film crystalline silicon (c-Si) solar cells. Antireflective d-SWSs were fabricated using spin-coated Ag ink and subsequent metal-assisted chemical etching, which reduced the ion-induced surface damage produced by the dry etching process. The dimensions of the d-SWSs were finely tuned by adjusting the Ag ink ratio. Au8Ag8 BNNPs were employed on optimized d-SWSs to achieve low reflectance at broadband wavelengths. The Au8Ag8 BNNPs on the d-SWSs showed 180% and 145% enhanced absorption compared to bare c-Si film and Au8Ag8 BNNPs on c-Si film, respectively, in the wavelength range of 300-1100 nm. After 200 cycles of bending the antireflection of the structures remained similar to the original level. This study introduces new approaches for light management in flexible thin film c-Si solar cells over the broadband wavelength range.
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Rensel DJ, Kim J, Jain V, Bonita Y, Rai N, Hicks JC. Composition-directed FeXMo2−XP bimetallic catalysts for hydrodeoxygenation reactions. Catal Sci Technol 2017. [DOI: 10.1039/c7cy00324b] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Compositional variation in FeXMo2−XP catalysts alters their Lewis acidities, leading to modulated catalytic performance in the hydrodeoxygenation of phenol.
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Affiliation(s)
- Dallas J. Rensel
- Department of Chemical and Biomolecular Engineering
- University of Notre Dame
- 182 Fitzpatrick Hall
- Indiana 46556
- USA
| | - Jongsik Kim
- Department of Chemical and Biomolecular Engineering
- University of Notre Dame
- 182 Fitzpatrick Hall
- Indiana 46556
- USA
| | - Varsha Jain
- Dave C. Swalm School of Chemical Engineering and Center for Advanced Vehicular Systems
- Mississippi State University
- USA
| | - Yolanda Bonita
- Department of Chemical and Biomolecular Engineering
- University of Notre Dame
- 182 Fitzpatrick Hall
- Indiana 46556
- USA
| | - Neeraj Rai
- Dave C. Swalm School of Chemical Engineering and Center for Advanced Vehicular Systems
- Mississippi State University
- USA
| | - Jason C. Hicks
- Department of Chemical and Biomolecular Engineering
- University of Notre Dame
- 182 Fitzpatrick Hall
- Indiana 46556
- USA
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27
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Kumar PN, Das A, Deepa M, Ghosal P, Srivastava AK. Bimetallic Au-Ag Alloy Nanoparticles Improve Energy Harvesting of a TiO2/CdS Film. ChemistrySelect 2016. [DOI: 10.1002/slct.201601026] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- P. Naresh Kumar
- Department of Chemistry; Indian Institute of Technology Hyderabad; Kandi-502285 Sangareddy, Telangana India
| | - Aparajita Das
- Department of Chemistry; Indian Institute of Technology Hyderabad; Kandi-502285 Sangareddy, Telangana India
| | - Melepurath Deepa
- Department of Chemistry; Indian Institute of Technology Hyderabad; Kandi-502285 Sangareddy, Telangana India
| | - Partha Ghosal
- Defence Metallurgical Research Laboratory; DRDO; Hyderabad 500058, Telangana India
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28
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Optical and Electrical Performance of MOS-Structure Silicon Solar Cells with Antireflective Transparent ITO and Plasmonic Indium Nanoparticles under Applied Bias Voltage. MATERIALS 2016; 9:ma9080682. [PMID: 28773801 PMCID: PMC5512348 DOI: 10.3390/ma9080682] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/31/2016] [Revised: 07/27/2016] [Accepted: 08/05/2016] [Indexed: 11/17/2022]
Abstract
This paper reports impressive improvements in the optical and electrical performance of metal-oxide-semiconductor (MOS)-structure silicon solar cells through the incorporation of plasmonic indium nanoparticles (In-NPs) and an indium-tin-oxide (ITO) electrode with periodic holes (perforations) under applied bias voltage. Samples were prepared using a plain ITO electrode or perforated ITO electrode with and without In-NPs. The samples were characterized according to optical reflectance, dark current voltage, induced capacitance voltage, external quantum efficiency, and photovoltaic current voltage. Our results indicate that induced capacitance voltage and photovoltaic current voltage both depend on bias voltage, regardless of the type of ITO electrode. Under a bias voltage of 4.0 V, MOS cells with perforated ITO and plain ITO, respectively, presented conversion efficiencies of 17.53% and 15.80%. Under a bias voltage of 4.0 V, the inclusion of In-NPs increased the efficiency of cells with perforated ITO and plain ITO to 17.80% and 16.87%, respectively.
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29
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Liu R, Guo J, Ma G, Jiang P, Zhang D, Li D, Chen L, Guo Y, Ge G. Alloyed Crystalline Au-Ag Hollow Nanostructures with High Chemical Stability and Catalytic Performance. ACS APPLIED MATERIALS & INTERFACES 2016; 8:16833-44. [PMID: 27268019 DOI: 10.1021/acsami.6b03728] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
For bimetallic nanoparticles (NPs), the degree of alloying is beginning to be recognized as a significant factor affecting the NP properties. Here, we report an alloyed crystalline Au-Ag hollow nanostructure that exhibits a high catalytic performance, as well as structural and chemical stability. The Au-Ag alloyed hollow and porous nanoshell structures (HPNSs) with different morphologies and subnanoscale crystalline structures were synthesized by adjusting the size of the sacrificial Ag NPs via a galvanic replacement reaction. The catalytic activities of the nanomaterials were evaluated by the model reaction of the catalytic reduction of p-nitrophenol by NaBH4 to p-aminophenol. The experimental results show that the subnanoscale crystalline structure of the Au-Ag bimetallic HPNSs has much greater significance than the apparent morphology does in determining the catalytic ability of the nanostructures. The Au-Ag alloyed HPNSs with better surface crystalline alloying microstructures and open morphologies were found to exhibit much higher catalytic reaction rates and better cyclic usage efficiencies, probably because of the better dispersion of active Au atoms within these materials. These galvanic replacement-synthesized alloyed Au-Ag HPNSs, fabricated by a facile method that avoids Ag degradation, have potential applications in catalysis, nanomedicine (especially in drug/gene delivery and cancer theranostics), and biosensing.
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Affiliation(s)
- Renxiao Liu
- CAS Key Laboratory of Standardization and Measurement for Nanotechnology, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology , Beijing 100190, P. R. China
| | - Jianhua Guo
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of Ministry of Education, College of Chemistry and Environmental Science, Hebei University , Baoding 071002, China
| | - Gang Ma
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of Ministry of Education, College of Chemistry and Environmental Science, Hebei University , Baoding 071002, China
| | - Peng Jiang
- CAS Key Laboratory of Standardization and Measurement for Nanotechnology, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology , Beijing 100190, P. R. China
| | - Donghui Zhang
- CAS Key Laboratory of Standardization and Measurement for Nanotechnology, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology , Beijing 100190, P. R. China
| | - Dexing Li
- CAS Key Laboratory of Standardization and Measurement for Nanotechnology, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology , Beijing 100190, P. R. China
| | - Lan Chen
- CAS Key Laboratory of Standardization and Measurement for Nanotechnology, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology , Beijing 100190, P. R. China
| | - Yuting Guo
- CAS Key Laboratory of Standardization and Measurement for Nanotechnology, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology , Beijing 100190, P. R. China
| | - Guanglu Ge
- CAS Key Laboratory of Standardization and Measurement for Nanotechnology, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology , Beijing 100190, P. R. China
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30
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Pangdam A, Nootchanat S, Ishikawa R, Shinbo K, Kato K, Kaneko F, Thammacharoen C, Ekgasit S, Baba A. Effect of urchin-like gold nanoparticles in organic thin-film solar cells. Phys Chem Chem Phys 2016; 18:18500-6. [PMID: 27338656 DOI: 10.1039/c6cp02373h] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
UNLABELLED In this study, urchin-like gold nanoparticles (UL-AuNPs) are used in the fabrication of organic thin-film solar cells (OSCs). UL-AuNPs, which have gold nanothorns on their surface, enhance light accumulation by acting as light-trapping materials. This is due to the enhanced electric field and light scattering attributed to the nanothorns on the surface of the nanoparticles. UL-AuNPs were incorporated into a poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate) ( PEDOT PSS) thin-film layer of organic thin-film solar cells (OSCs). UV-vis spectra, atomic force microscopy (AFM) images, current density versus voltage properties, and the impedance spectra of the fabricated devices were recorded at various concentrations of UL-AuNPs. We found that the efficiency of the OSCs with UL-AuNPs was not only higher than that of a reference cell without nanoparticles but also higher than that of OSCs with spherical AuNPs. Finite-difference time-domain (FDTD) simulation indicated that the electric field around the UL-AuNPs increased due to the presence of nanothorns.
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Affiliation(s)
- Apichat Pangdam
- Graduate School of Science and Technology, Niigata University, 8050, Ikarashi 2-nocho, Nishi-ku, Niigata 950-2181, Japan.
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31
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Fan W, Leung MKH. Recent Development of Plasmonic Resonance-Based Photocatalysis and Photovoltaics for Solar Utilization. Molecules 2016; 21:E180. [PMID: 26848648 PMCID: PMC6274351 DOI: 10.3390/molecules21020180] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2015] [Revised: 01/24/2016] [Accepted: 01/27/2016] [Indexed: 12/20/2022] Open
Abstract
Increasing utilization of solar energy is an effective strategy to tackle our energy and energy-related environmental issues. Both solar photocatalysis (PC) and solar photovoltaics (PV) have high potential to develop technologies of many practical applications. Substantial research efforts are devoted to enhancing visible light activation of the photoelectrocatalytic reactions by various modifications of nanostructured semiconductors. This review paper emphasizes the recent advancement in material modifications by means of the promising localized surface plasmonic resonance (LSPR) mechanisms. The principles of LSPR and its effects on the photonic efficiency of PV and PC are discussed here. Many research findings reveal the promise of Au and Ag plasmonic nanoparticles (NPs). Continual investigation for increasing the stability of the plasmonic NPs will be fruitful.
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Affiliation(s)
- Wenguang Fan
- Ability R & D Energy Research Centre, School of Energy and Environment, City University of Hong Kong, Kowloon Tong, Hong Kong, China.
| | - Michael K H Leung
- Ability R & D Energy Research Centre, School of Energy and Environment, City University of Hong Kong, Kowloon Tong, Hong Kong, China.
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32
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Burresi M, Pratesi F, Riboli F, Wiersma DS. Complex Photonic Structures for Light Harvesting. ADVANCED OPTICAL MATERIALS 2015; 3:722-743. [PMID: 26640755 PMCID: PMC4662022 DOI: 10.1002/adom.201400514] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2014] [Revised: 01/20/2015] [Indexed: 05/26/2023]
Abstract
Over the last few years, micro- and nanophotonics have roused a strong interest in the scientific community for their promising impact on the development of novel kinds of solar cells. Certain thin- and ultrathin-film solar cells are made of innovative, often cheap, materials which suffer from a low energy conversion efficiency. Light-trapping mechanisms based on nanophotonics principles are particularly suited to enhance the absorption of electromagnetic waves in these thin media without changing the material composition. In this review, the latest results achieved in this field are reported, with particular attention to the realization of prototypes, spanning from deterministic to disordered photonic architectures, and from dielectric to metallic nanostructures.
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Affiliation(s)
- Matteo Burresi
- European Laboratory for Non-linear Spectroscopy (LENS), Università di Firenzevia Nello Carrara 1, 50019, Sesto Fiorentino, (FI), Italy
- Istituto Nazionale di Ottica (CNR-INO)Largo Fermi 6, 50125, Firenze, (FI), Italy
| | - Filippo Pratesi
- European Laboratory for Non-linear Spectroscopy (LENS), Università di Firenzevia Nello Carrara 1, 50019, Sesto Fiorentino, (FI), Italy
| | - Francesco Riboli
- Dipartimento di Fisica, Università di TrentoVia Sommarive 14, 38123, Povo, (TN), Italy
| | - Diederik Sybolt Wiersma
- European Laboratory for Non-linear Spectroscopy (LENS), Università di Firenzevia Nello Carrara 1, 50019, Sesto Fiorentino, (FI), Italy
- Department of Physics, Università di Firenzevia Nello Carrara 1, 50019, Sesto Fiorentino, (FI), Italy
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33
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Liu Y, Zhou J, Wang B, Jiang T, Ho HP, Petti L, Mormile P. Au@Ag core-shell nanocubes: epitaxial growth synthesis and surface-enhanced Raman scattering performance. Phys Chem Chem Phys 2015; 17:6819-26. [PMID: 25670345 DOI: 10.1039/c4cp05642f] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Novel Au@Ag core-shell nanocubes (NCs) were successfully prepared by the controlled epitaxial growth of Ag shells onto Au nanoellipsoids (NEs) in the presence of surfactants. The growth mechanism of the Au@Ag core-shell NCs was systematically investigated by analyzing their morphology, optical properties, and crystallography. The localized surface plasmon resonance (LSPR) characteristics and the electric field distribution of the Au@Ag core-shell NCs were studied using the finite element method (FEM) based on the plasmon hybridization theory. Compared with pure Ag NCs, the absorption spectrum of the Au@Ag core-shell NCs exhibits a red shift and a weak shoulder near 550 nm, and the notable enhancement of electric field occurs around the corners along the long-axis of the Au ellipsoidal core because of plasmonic resonant coupling. Surface-enhanced Raman scattering (SERS) of the Au@Ag core-shell NCs labeled with 4-mercaptobenzoic acid molecules reveals that the bimetallic core-shell NCs possess efficient SERS activity with an enhancement factor EF = 2.27 × 10(6), thus confirming the possibility of using the Au@Ag core-shell NCs as a stable probe for SERS-based biosensing applications.
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Affiliation(s)
- Yanting Liu
- Institute of Photonics, Faculty of Science, Ningbo University, Ningbo 31 5211, Zhejiang, China.
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34
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Pandey PC, Singh R, Pandey Y. Controlled synthesis of functional Ag, Ag–Au/Au–Ag nanoparticles and their Prussian blue nanocomposites for bioanalytical applications. RSC Adv 2015. [DOI: 10.1039/c5ra06251a] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A facile method for the synthesis of functional AgNPs and bimetallic Ag–Au/Au–Ag are reported, enabling the formation of nanocomposite with prussian blue in a crystalline framework for bioanalytical applications, showing the active role of organic reducing agents and 3-aminopropyltrimethoxysilane.
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Affiliation(s)
- Prem. C. Pandey
- Department of Chemistry
- Indian Institute of Technology (Banaras Hindu University)
- Varanasi-221005
- India
| | - Richa Singh
- Department of Chemistry
- Indian Institute of Technology (Banaras Hindu University)
- Varanasi-221005
- India
| | - Yashashwa Pandey
- Department of Chemistry
- Indian Institute of Technology (Banaras Hindu University)
- Varanasi-221005
- India
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35
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Zhou N, López-Puente V, Wang Q, Polavarapu L, Pastoriza-Santos I, Xu QH. Plasmon-enhanced light harvesting: applications in enhanced photocatalysis, photodynamic therapy and photovoltaics. RSC Adv 2015. [DOI: 10.1039/c5ra01819f https:/doi.org/10.1039/c5ra01819f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/18/2023] Open
Abstract
This review article summarizes the recent progress on surface plasmon-enhanced light harvesting and its applications toward enhanced photocatalysis, photodynamic therapy, chemical transformations and photovoltaics.
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Affiliation(s)
- Na Zhou
- Department of Chemistry
- National University of Singapore
- Singapore 117543
- Singapore
- National University of Singapore (Suzhou) Research Institute (NUSRI)
| | - Vanesa López-Puente
- Departamento de Química Física
- Facultade de Química
- CINBIO
- Universidad de Vigo
- 36310 Vigo
| | - Qing Wang
- Department of Materials Science and Engineering
- National University of Singapore
- Singapore 117576
- Singapore
| | | | | | - Qing-Hua Xu
- Department of Chemistry
- National University of Singapore
- Singapore 117543
- Singapore
- National University of Singapore (Suzhou) Research Institute (NUSRI)
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36
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Zhou N, López-Puente V, Wang Q, Polavarapu L, Pastoriza-Santos I, Xu QH. Plasmon-enhanced light harvesting: applications in enhanced photocatalysis, photodynamic therapy and photovoltaics. RSC Adv 2015. [DOI: 10.1039/c5ra01819f https://doi.org/10.1039/c5ra01819f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
This review article summarizes the recent progress on surface plasmon-enhanced light harvesting and its applications toward enhanced photocatalysis, photodynamic therapy, chemical transformations and photovoltaics.
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Affiliation(s)
- Na Zhou
- Department of Chemistry
- National University of Singapore
- Singapore 117543
- Singapore
- National University of Singapore (Suzhou) Research Institute (NUSRI)
| | - Vanesa López-Puente
- Departamento de Química Física
- Facultade de Química
- CINBIO
- Universidad de Vigo
- 36310 Vigo
| | - Qing Wang
- Department of Materials Science and Engineering
- National University of Singapore
- Singapore 117576
- Singapore
| | | | | | - Qing-Hua Xu
- Department of Chemistry
- National University of Singapore
- Singapore 117543
- Singapore
- National University of Singapore (Suzhou) Research Institute (NUSRI)
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37
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Zhou N, López-Puente V, Wang Q, Polavarapu L, Pastoriza-Santos I, Xu QH. Plasmon-enhanced light harvesting: applications in enhanced photocatalysis, photodynamic therapy and photovoltaics. RSC Adv 2015. [DOI: 10.1039/c5ra01819f] [Citation(s) in RCA: 178] [Impact Index Per Article: 19.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
This review article summarizes the recent progress on surface plasmon-enhanced light harvesting and its applications toward enhanced photocatalysis, photodynamic therapy, chemical transformations and photovoltaics.
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Affiliation(s)
- Na Zhou
- Department of Chemistry
- National University of Singapore
- Singapore 117543
- Singapore
- National University of Singapore (Suzhou) Research Institute (NUSRI)
| | - Vanesa López-Puente
- Departamento de Química Física
- Facultade de Química
- CINBIO
- Universidad de Vigo
- 36310 Vigo
| | - Qing Wang
- Department of Materials Science and Engineering
- National University of Singapore
- Singapore 117576
- Singapore
| | | | | | - Qing-Hua Xu
- Department of Chemistry
- National University of Singapore
- Singapore 117543
- Singapore
- National University of Singapore (Suzhou) Research Institute (NUSRI)
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