1
|
Shen L, Song P, Zheng L, Wang L, Zhang X, Liu K, Liang Y, Tian W, Luo Y, Qiu J, Tian C, Xie L, Wei Z. Ion-Diffusion Management Enables All-Interface Defect Passivation of Perovskite Solar Cells. Adv Mater 2023; 35:e2301624. [PMID: 37358373 DOI: 10.1002/adma.202301624] [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] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Revised: 05/30/2023] [Indexed: 06/27/2023]
Abstract
Perovskite solar cells (PSCs) have demonstrated over 25% power conversion efficiency (PCE) via efficient surface passivation. Unfortunately, state-of-the-art perovskite post-treatment strategies can solely heal the top interface defects. Herein, an ion-diffusion management strategy is proposed to concurrently modulate the top interfaces, buried interfaces, and bulk interfaces (i.e., grain boundaries) of perovskite film, enabling all-interface defect passivation. Specifically, this method is enabled by applying double interactive salts of octylammonium iodide (OAI) and guanidinium chloride (GACl) onto the 3D perovskite surface. It is revealed that the hydrogen-bonding interaction between OA+ and GA+ decelerates the OA+ diffusion and therefore forms a dimensionally broadened 2D capping layer. Additionally, the diffusion of GA+ and Cl- determines the composition of the bulk and buried interface of PSCs. As a result, n-inter-i-inter-p, i.e., five-layer structured PSCs can be obtained with a champion PCE of 25.43% (certified 24.4%). This approach also enables the substantially improved operational stability of perovskite solar cells.
Collapse
Affiliation(s)
- Lina Shen
- Xiamen Key Laboratory of Optoelectronic Materials and Advanced Manufacturing, Institute of Luminescent Materials and Information Displays, College of Materials Science and Engineering, Huaqiao University, Xiamen, 361021, China
| | - Peiquan Song
- Xiamen Key Laboratory of Optoelectronic Materials and Advanced Manufacturing, Institute of Luminescent Materials and Information Displays, College of Materials Science and Engineering, Huaqiao University, Xiamen, 361021, China
| | - Lingfang Zheng
- Xiamen Key Laboratory of Optoelectronic Materials and Advanced Manufacturing, Institute of Luminescent Materials and Information Displays, College of Materials Science and Engineering, Huaqiao University, Xiamen, 361021, China
| | - Lipeng Wang
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang, 110016, China
| | - Xiaguang Zhang
- Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, College of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, 453007, China
| | - Kaikai Liu
- Xiamen Key Laboratory of Optoelectronic Materials and Advanced Manufacturing, Institute of Luminescent Materials and Information Displays, College of Materials Science and Engineering, Huaqiao University, Xiamen, 361021, China
| | - Yuming Liang
- Xiamen Key Laboratory of Optoelectronic Materials and Advanced Manufacturing, Institute of Luminescent Materials and Information Displays, College of Materials Science and Engineering, Huaqiao University, Xiamen, 361021, China
| | - Wanjia Tian
- Xiamen Key Laboratory of Optoelectronic Materials and Advanced Manufacturing, Institute of Luminescent Materials and Information Displays, College of Materials Science and Engineering, Huaqiao University, Xiamen, 361021, China
| | - Yujie Luo
- Xiamen Key Laboratory of Optoelectronic Materials and Advanced Manufacturing, Institute of Luminescent Materials and Information Displays, College of Materials Science and Engineering, Huaqiao University, Xiamen, 361021, China
| | - Jianhang Qiu
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang, 110016, China
| | - Chengbo Tian
- Xiamen Key Laboratory of Optoelectronic Materials and Advanced Manufacturing, Institute of Luminescent Materials and Information Displays, College of Materials Science and Engineering, Huaqiao University, Xiamen, 361021, China
| | - Liqiang Xie
- Xiamen Key Laboratory of Optoelectronic Materials and Advanced Manufacturing, Institute of Luminescent Materials and Information Displays, College of Materials Science and Engineering, Huaqiao University, Xiamen, 361021, China
| | - Zhanhua Wei
- Xiamen Key Laboratory of Optoelectronic Materials and Advanced Manufacturing, Institute of Luminescent Materials and Information Displays, College of Materials Science and Engineering, Huaqiao University, Xiamen, 361021, China
| |
Collapse
|
2
|
Kaienburg P, Bristow H, Jungbluth A, Habib I, McCulloch I, Beljonne D, Riede M. Vacuum-Deposited Donors for Low-Voltage-Loss Nonfullerene Organic Solar Cells. ACS Appl Mater Interfaces 2023. [PMID: 37348123 DOI: 10.1021/acsami.3c04282] [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] [Subscribe] [Scholar Register] [Indexed: 06/24/2023]
Abstract
The advent of nonfullerene acceptors (NFAs) enabled records of organic photovoltaics (OPVs) exceeding 19% power conversion efficiency in the laboratory. However, high-efficiency NFAs have so far only been realized in solution-processed blends. Due to its proven track record in upscaled industrial production, vacuum thermal evaporation (VTE) is of prime interest for real-world OPV commercialization. Here, we combine the benchmark solution-processed NFA Y6 with three different evaporated donors in a bilayer (planar heterojunction) architecture. We find that voltage losses decrease by hundreds of millivolts when VTE donors are paired with the NFA instead of the fullerene C60, the current standard acceptor in VTE OPVs. By showing that evaporated small-molecule donors behave much like solution-processed donor polymers in terms of voltage loss when combined with NFAs, we highlight the immense potential for evaporable NFAs and the urgent need to direct synthesis efforts toward making smaller, evaporable compounds.
Collapse
Affiliation(s)
- Pascal Kaienburg
- Clarendon Laboratory, Department of Physics, University of Oxford, Oxford OX1 3PU, U.K
| | - Helen Bristow
- Department of Chemistry, Chemistry Research Laboratory, University of Oxford, Oxford OX1 3TA, U.K
| | - Anna Jungbluth
- Clarendon Laboratory, Department of Physics, University of Oxford, Oxford OX1 3PU, U.K
| | - Irfan Habib
- Clarendon Laboratory, Department of Physics, University of Oxford, Oxford OX1 3PU, U.K
| | - Iain McCulloch
- Department of Chemistry, Chemistry Research Laboratory, University of Oxford, Oxford OX1 3TA, U.K
- KAUST Solar Center (KSC), King Abdullah University of Science and Technology (KAUST), Thuwal 23955, Saudi Arabia
| | - David Beljonne
- Laboratory for Chemistry of Novel Materials, Center of Innovation and Research in Materials & Polymers (CIRMAP), University of Mons (UMONS), Mons B-7000, Belgium
| | - Moritz Riede
- Clarendon Laboratory, Department of Physics, University of Oxford, Oxford OX1 3PU, U.K
| |
Collapse
|
3
|
Li X, Wang Z, Tang A, Guo Q, Liu Y, Du M, Zhou E. Dithienobenzothiadiazole (DTBT)-Based Polymers Enable Organic Solar Cells with Ultrahigh V OC of ∼1.3 V. Macromol Rapid Commun 2023:e2300019. [PMID: 37027787 DOI: 10.1002/marc.202300019] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Revised: 03/17/2023] [Indexed: 04/09/2023]
Abstract
Dithieno[3',2':3,4;2",3":5,6]benzo[1,2-c][1,2,5]thiadiazole (DTBT) is a newly emerging building block to construct effective photovoltaic polymers. Organic solar cells (OSCs) based on DTBT-based polymers have realized power conversion efficiency (PCEs) over 18%, despite their relatively low open-circuit voltage (VOC ) of 0.8-0.95 V. To extend the application of DTBT-based polymers in high-voltage OSCs, herein, D18-Cl and PE55 were used to combine with a wide-bandgap non-fullerene acceptor (NFA), BTA3, and achieve ultrahigh VOC of 1.30 and 1.28 V, respectively. Compared with D18-Cl based on tricyclic benzodithiophene (BDT) segment, PE55 containing the pentacyclic dithienobenzodithiophene (DTBDT) unit possesses better hole mobility, higher charge-transfer efficiency, and more desirable phase separation. Hence, PE55:BTA3 blend exhibits a higher efficiency of 9.36% than that of D18-Cl: BTA3 combination (6.30%), which is one of the highest values for OSCs at ∼1.3 V VOC . Our work attests DTBT-based p-type polymers are ideal for the application in high-voltage OSCs. This article is protected by copyright. All rights reserved.
Collapse
Affiliation(s)
- Xiangyu Li
- Henan Institute of Advanced Technology, School of Materials Science and Engineering, Zhengzhou University, Zhengzhou, 450003, China
- National Center for Nanoscience and Technology, Beijing, 100190, China
| | - Zongtao Wang
- Henan Institute of Advanced Technology, School of Materials Science and Engineering, Zhengzhou University, Zhengzhou, 450003, China
- National Center for Nanoscience and Technology, Beijing, 100190, China
| | - Ailing Tang
- National Center for Nanoscience and Technology, Beijing, 100190, China
| | - Qiang Guo
- Henan Institute of Advanced Technology, School of Materials Science and Engineering, Zhengzhou University, Zhengzhou, 450003, China
| | - Yingliang Liu
- Henan Institute of Advanced Technology, School of Materials Science and Engineering, Zhengzhou University, Zhengzhou, 450003, China
| | - Mengzhen Du
- Henan Institute of Advanced Technology, School of Materials Science and Engineering, Zhengzhou University, Zhengzhou, 450003, China
| | - Erjun Zhou
- Henan Institute of Advanced Technology, School of Materials Science and Engineering, Zhengzhou University, Zhengzhou, 450003, China
- National Center for Nanoscience and Technology, Beijing, 100190, China
| |
Collapse
|
4
|
Xiao X, Zhang W, Liu J, Du J, Qiu C, Meng R, Mei A, Han H, Hu Y. Depth-Dependent Post-Treatment for Reducing Voltage Loss in Printable Mesoscopic Perovskite Solar Cells. Adv Sci (Weinh) 2023; 10:e2206331. [PMID: 36683252 PMCID: PMC10037989 DOI: 10.1002/advs.202206331] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/29/2022] [Revised: 12/20/2022] [Indexed: 06/17/2023]
Abstract
The printable mesoscopic perovskite solar cells consisting of a double layer of metal oxides covered by a porous carbon film have attracted attention due to their industrialization advantages. However, the tens-of-micrometer thickness of the triple scaffold leads to a challenge for perovskite to crystallize and for the charge carriers to separate and travel to the electrode, which limits the open circuit voltage (VOC ) of such devices. In this work, a depth-dependent post-treatment strategy is demonstrated to synergistically passivate defects and tune interfacial energy band alignment. Two thiophene derivatives, namely 3-chlorothiophene (3-CT) and 3-thiophene ethylenediamine (3-TEA), are selected for the post-treatment. Energy-dispersive X-ray spectroscopy proves that 3-CT is uniformly distributed throughout the triple scaffold and effectively passivates the defects of the bulky perovskite, while 3-TEA reacts rapidly with the loose perovskite in the carbon layer to form 2D perovskite, forming a type II energy band alignment at the perovskite/carbon interface. As a result, the defect-assisted recombination is suppressed and the interfacial energy band is regulated, increasing the VOC to 1012 mV. The PCE of the devices is enhanced from 16.26% to 18.49%. This depth-dependent post-treatment strategy takes advantage of the unique structure and provides a new insight for reducing the voltage loss.
Collapse
Affiliation(s)
- Xufeng Xiao
- Wuhan National Laboratory for OptoelectronicsHuazhong University of Science and TechnologyWuhan430074China
| | - Wenhao Zhang
- Wuhan National Laboratory for OptoelectronicsHuazhong University of Science and TechnologyWuhan430074China
| | - Jiale Liu
- Wuhan National Laboratory for OptoelectronicsHuazhong University of Science and TechnologyWuhan430074China
| | - Jiankang Du
- Wuhan National Laboratory for OptoelectronicsHuazhong University of Science and TechnologyWuhan430074China
| | - Cheng Qiu
- Wuhan National Laboratory for OptoelectronicsHuazhong University of Science and TechnologyWuhan430074China
| | - Ranjun Meng
- Wuhan National Laboratory for OptoelectronicsHuazhong University of Science and TechnologyWuhan430074China
| | - Anyi Mei
- Wuhan National Laboratory for OptoelectronicsHuazhong University of Science and TechnologyWuhan430074China
| | - Hongwei Han
- Wuhan National Laboratory for OptoelectronicsHuazhong University of Science and TechnologyWuhan430074China
| | - Yue Hu
- Wuhan National Laboratory for OptoelectronicsHuazhong University of Science and TechnologyWuhan430074China
| |
Collapse
|
5
|
Suthar R, T A, Dahiya H, Singh AK, Sharma GD, Karak S. Role of Exciton Lifetime, Energetic Offsets, and Disorder in Voltage Loss of Bulk Heterojunction Organic Solar Cells. ACS Appl Mater Interfaces 2023; 15:3214-3223. [PMID: 36601721 DOI: 10.1021/acsami.2c18199] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Recently, the power conversion efficiency (PCE) of organic solar cells (OSCs) has significantly progressed with a rapid increase from 10 to 19% due to state-of-the-art research on nonfullerene acceptor molecules and various device processing strategies. However, OSCs still exhibit significant open circuit voltage loss (ΔVOC ∼ 0.6 V) due to high energetic offsets and molecular disorder. In this work, we present a systematic investigation to determine the effects of energetic offset and disorder on different recombination losses in open circuit voltage (VOC) using 13 different photoactive layers, wherein the PCE and ΔVOC vary in the ranges of 2.21-14.74% and 0.561-1.443 V, respectively. The detailed voltage loss analysis of all these devices was carried out, and voltage losses were correlated with energetic offset and disorder. This has enabled us to identify the key features for minimizing the voltage loss like: (1) a low energy offset between the donor and acceptor molecular states is essential to attain a nonradiative voltage loss (ΔVOC, nrad) as low as ∼200 meV and (2) Urbach energy, which is a measure of the materials' disorder and packing, should be low for the minimization of the radiative voltage loss (ΔVOC, rad). In addition, time-resolved photoluminescence spectroscopy was employed to further understand the exciton dynamics of pristine materials and donor-acceptor blends. It was observed that the absorbers with ultralong exciton lifetime (∼1000 ps) produce higher efficiencies. The current study emphasizes the importance of simultaneously testing photovoltaic performance and active layer exciton dynamics for rational device optimization and opens new prospects for designing novel molecules with fine-tuning of energetic offset and disorder with longer exciton lifetime which is the effective strategy to boost the efficiency of OSCs to their modified Shockley-Queisser (SQ) limit by minimizing radiative and nonradiative voltage losses.
Collapse
Affiliation(s)
- Rakesh Suthar
- Organic and Hybrid Electronic Device Laboratory, Department of Energy Science and Engineering, Indian Institute of Technology Delhi, New Delhi110016, India
| | - Abhijith T
- Organic and Hybrid Electronic Device Laboratory, Department of Energy Science and Engineering, Indian Institute of Technology Delhi, New Delhi110016, India
| | - Hemraj Dahiya
- Department of Physics, The LNM Institute of Information Technology, Jaipur, Rajasthan302031, India
| | - Abhishek Kumar Singh
- Department of Electronics Engineering, Rajiv Gandhi Institute of Petroleum Technology, Amethi, Uttar Pradesh229304, India
| | - Ganesh D Sharma
- Department of Physics, The LNM Institute of Information Technology, Jaipur, Rajasthan302031, India
| | - Supravat Karak
- Organic and Hybrid Electronic Device Laboratory, Department of Energy Science and Engineering, Indian Institute of Technology Delhi, New Delhi110016, India
| |
Collapse
|
6
|
Zhou J, He Z, Sun Y, Tang A, Guo Q, Zhou E. Organic Photovoltaic Cells Based on Nonhalogenated Polymer Donors and Nonhalogenated A-DA'D-A-Type Nonfullerene Acceptors with High VOC and Low Nonradiative Voltage Loss. ACS Appl Mater Interfaces 2022; 14:41296-41303. [PMID: 36052498 DOI: 10.1021/acsami.2c10059] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Compared with other all-inorganic/organic-inorganic hybrid solar cells, the large voltage loss (Vloss) of organic photovoltaic (OPV) cells, especially the nonradiative voltage loss (ΔVnonrad), limited the further improvement of performance. Although A-DA'D-A-type Y-series nonfullerene acceptors (NFAs) largely improve the power conversion efficiencies (PCEs) to 18%, the open-circuit voltage (VOC) of this kind of material was still restricted to below 1.0 V. Herein, we designed and synthesized a narrow bandgap (Eg = 1.41 eV) acceptor BTA77 with an A-DA'D-A-type backbone containing a nonhalogenated terminal group to achieve high electroluminescence efficiency and high VOC. Combined with the nonhalogenated polymer PBDB-T with a conjugated thiophene side chain, BTA77 realized a VOC of 0.944 V, a Vloss of 0.552 V, and a PCE of 13.75%, which is one of the highest PCEs based on nonhalogenated A-DA'D-A-type acceptors with VOC > 0.9 V. After further blending with the nonhalogenated donor polymer PBT1-C with a conjugated phenyl side chain, the VOC increases to 1.021 V with a super low ΔVnonrad of 0.14 V owing to the greatly improved electroluminescence external quantum efficiency (EQEEL) of 4.42 × 10-3. Our results indicate that there is still a large room to decrease the ΔVnonrad and increase VOC by synergistic molecular engineering of p-type polymers and n-type small molecules.
Collapse
Affiliation(s)
- Jialing Zhou
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing 100190, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Zehua He
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing 100190, China
- Henan Institutes of Advanced Technology, Zhengzhou University, Zhengzhou 450003, China
| | - Yanming Sun
- School of Chemistry, Beihang University, Beijing 100191, China
| | - Ailing Tang
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing 100190, China
| | - Qiang Guo
- Henan Institutes of Advanced Technology, Zhengzhou University, Zhengzhou 450003, China
| | - Erjun Zhou
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing 100190, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| |
Collapse
|
7
|
Kaienburg P, Jungbluth A, Habib I, Kesava SV, Nyman M, Riede MK. Assessing the Photovoltaic Quality of Vacuum-Thermal Evaporated Organic Semiconductor Blends. Adv Mater 2022; 34:e2107584. [PMID: 34821418 DOI: 10.1002/adma.202107584] [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: 09/22/2021] [Revised: 11/18/2021] [Indexed: 06/13/2023]
Abstract
Vacuum-thermal evaporation (VTE) is a highly relevant fabrication route for organic solar cells (OSCs), especially on an industrial scale as proven by the commercialization of organic light emitting diode-based displays. While OSC performance is reported for a range of VTE-deposited molecules, a comprehensive assessment of donor:acceptor blend properties with respect to their photovoltaic performance is scarce. Here, the organic thin films and solar cells of three select systems are fabricated and ellipsometry, external quantum efficiency with high dynamic range, as well as OTRACE are measured to quantify absorption, voltage losses, and charge carrier mobility. These parameters are key to explain OSC performance and will help to rationalize the performance of other material systems reported in literature as the authors' methodology is applicable beyond VTE systems. Furthermore, it can help to judge the prospects of new molecules in general. The authors find large differences in the measured values and find that today's VTE OSCs can reach high extinction coefficients, but only moderate mobility and voltage loss compared to their solution-processed counterparts. What needs to be improved for VTE OSCs is outlined to again catch up with their solution-processed counterparts in terms of power conversion efficiency.
Collapse
Affiliation(s)
- Pascal Kaienburg
- Clarendon Laboratory, Department of Physics, University of Oxford, Oxford, OX1 3PU, UK
| | - Anna Jungbluth
- Clarendon Laboratory, Department of Physics, University of Oxford, Oxford, OX1 3PU, UK
| | - Irfan Habib
- Clarendon Laboratory, Department of Physics, University of Oxford, Oxford, OX1 3PU, UK
| | - Sameer Vajjala Kesava
- Clarendon Laboratory, Department of Physics, University of Oxford, Oxford, OX1 3PU, UK
| | - Mathias Nyman
- Physics, Faculty of Science and Engineering, Åbo Akademi University, Porthansgatan 3, Turku, 20500, Finland
| | - Moritz K Riede
- Clarendon Laboratory, Department of Physics, University of Oxford, Oxford, OX1 3PU, UK
| |
Collapse
|
8
|
Tong Y, Najar A, Wang L, Liu L, Du M, Yang J, Li J, Wang K, Liu S(F. Wide-Bandgap Organic-Inorganic Lead Halide Perovskite Solar Cells. Adv Sci (Weinh) 2022; 9:e2105085. [PMID: 35257511 PMCID: PMC9109050 DOI: 10.1002/advs.202105085] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Revised: 01/24/2022] [Indexed: 05/14/2023]
Abstract
Under the groundswell of calls for the industrialization of perovskite solar cells (PSCs), wide-bandgap (>1.7 eV) mixed halide perovskites are equally or more appealing in comparison with typical bandgap perovskites when the former's various potential applications are taken into account. In this review, the progress of wide-bandgap organic-inorganic hybrid PSCs-concentrating on the compositional space, optimization strategies, and device performance-are summarized and the issues of phase segregation and voltage loss are assessed. Then, the diverse applications of wide-bandgap PSCs in semitransparent devices, indoor photovoltaics, and various multijunction tandem devices are discussed and their challenges and perspectives are evaluated. Finally, the authors conclude with an outlook for the future development of wide-bandgap PSCs.
Collapse
Affiliation(s)
- Yao Tong
- Faculty of Light Industry and Chemical EngineeringDalian Polytechnic UniversityDalianLiaoning116034China
| | - Adel Najar
- Department of PhysicsCollege of ScienceUnited Arab Emirates UniversityAl Ain15505United Arab Emirates
| | - Le Wang
- Faculty of Light Industry and Chemical EngineeringDalian Polytechnic UniversityDalianLiaoning116034China
| | - Lu Liu
- Dalian National Laboratory for Clean EnergyiChEMDalian Institute of Chemical PhysicsChinese Academy of SciencesDalianLiaoning116023China
| | - Minyong Du
- Dalian National Laboratory for Clean EnergyiChEMDalian Institute of Chemical PhysicsChinese Academy of SciencesDalianLiaoning116023China
| | - Jing Yang
- Dalian National Laboratory for Clean EnergyiChEMDalian Institute of Chemical PhysicsChinese Academy of SciencesDalianLiaoning116023China
| | - Jianxun Li
- Dalian National Laboratory for Clean EnergyiChEMDalian Institute of Chemical PhysicsChinese Academy of SciencesDalianLiaoning116023China
| | - Kai Wang
- Dalian National Laboratory for Clean EnergyiChEMDalian Institute of Chemical PhysicsChinese Academy of SciencesDalianLiaoning116023China
| | - Shengzhong (Frank) Liu
- Dalian National Laboratory for Clean EnergyiChEMDalian Institute of Chemical PhysicsChinese Academy of SciencesDalianLiaoning116023China
- Key Laboratory of Applied Surface and Colloid ChemistryMinistry of EducationShaanxi Engineering Lab for Advanced Energy TechnologySchool of Materials Science and EngineeringShaanxi Normal UniversityXi'anShaanxi710119China
| |
Collapse
|
9
|
Liu J, Xian K, Ye L, Zhou Z. Open-Circuit Voltage Loss in Lead Chalcogenide Quantum Dot Solar Cells. Adv Mater 2021; 33:e2008115. [PMID: 34085736 DOI: 10.1002/adma.202008115] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Revised: 01/09/2021] [Indexed: 06/12/2023]
Abstract
Lead chalcogenide colloidal quantum dot solar cells (CQDSCs) have received considerable attention due to their broad and tunable absorption and high stability. Presently, lead chalcogenide CQDSC has achieved a power conversion efficiency of ≈14%. However, the state-of-the-art lead chalcogenide CQDSC still has an open-circuit voltage (Voc ) loss of ≈0.45 V, which is significantly higher than those of c-Si and perovskite solar cells. Such high Voc loss severely limits the performance improvement and commercialization of lead chalcogenide CQDSCs. In this review, the Voc loss is first analyzed via detailed balance theory and the origin of Voc loss from both solar absorber and interface is summarized. Subsequently, various strategies for improving the Voc from the solar absorber, including the passivation strategies during the synthesis and ligand exchange are overviewed. The great impact of the ligand exchange process on CQD passivation is highlighted and the corresponding strategies to further reduce the Voc loss are summarized. Finally, various strategies are discussed to reduce interface Voc loss from charge transport layers. More importantly, the great potential of achieving performance breakthroughs via various organic hole transport layers is highlighted and the existing challenges toward commercialization are discussed.
Collapse
Affiliation(s)
- Junwei Liu
- School of Materials Science and Engineering, Tianjin University, Tianjin, 300350, China
- Tianjin Key Laboratory of Indoor Air Environmental Quality Control, School of Environmental Science and Engineering, Tianjin University, Tianjin, 300350, China
| | - Kaihu Xian
- School of Materials Science and Engineering, Tianjin University, Tianjin, 300350, China
| | - Long Ye
- School of Materials Science and Engineering, Tianjin University, Tianjin, 300350, China
| | - Zhihua Zhou
- Tianjin Key Laboratory of Indoor Air Environmental Quality Control, School of Environmental Science and Engineering, Tianjin University, Tianjin, 300350, China
| |
Collapse
|
10
|
Yin A, Zhang D, Wang J, Zhou H, Fu Z, Zhang Y. Mediated Non-geminate Recombination in Ternary Organic Solar Cells Through a Liquid Crystal Guest Donor. Front Chem 2020; 8:21. [PMID: 32117865 PMCID: PMC7026665 DOI: 10.3389/fchem.2020.00021] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [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: 10/16/2019] [Accepted: 01/09/2020] [Indexed: 11/13/2022] Open
Abstract
The approach via ternary blends prompts the increase of absorbed photon density and resultant photocurrent enhancement in organic solar cells (OSCs). In contrast to actively reported high efficiency ternary OSCs, little is known about charge recombination properties and carrier loss mechanisms in these emerging devices. Here, through introducing a small molecule donor BTR as a guest component to the PCE-10:PC71BM binary system, we show that photocarrier losses via recombination are mitigated with respect the binary OSCs, owing to a reduced bimolecular recombination. The gain of the fill factor in ternary devices are reconciled by the change in equilibrium between charge exaction and recombination in the presence of BTR toward the former process. With these modifications, the power conversion efficiency in ternary solar cells receives a boost from 8.8 (PCE-10:PC71BM) to 10.88%. We further found that the voltage losses in the ternary cell are slightly suppressed, related to the rising charge transfer-state energy. These benefits brought by the third guest donor are important for attaining improvements on key photophysical processes governing the photovoltaic efficiencies in organic ternary solar cells.
Collapse
Affiliation(s)
- Ao Yin
- School of Chemistry, Beijing Advanced Innovation Center for Biomedical Engineering, Beihang University, Beijing, China
| | - Dongyang Zhang
- School of Chemistry, Beijing Advanced Innovation Center for Biomedical Engineering, Beihang University, Beijing, China
| | - Jianqiu Wang
- School of Chemistry, Beijing Advanced Innovation Center for Biomedical Engineering, Beihang University, Beijing, China
| | - Huiqiong Zhou
- CAS Key Laboratory of Nanosystem and Hierachical Fabrication CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing, China
| | - Zhiqiang Fu
- School of Engineering and Technology, China University of Geosciences, Beijing, China
| | - Yuan Zhang
- School of Chemistry, Beijing Advanced Innovation Center for Biomedical Engineering, Beihang University, Beijing, China
| |
Collapse
|
11
|
Daboczi M, Hamilton I, Xu S, Luke J, Limbu S, Lee J, McLachlan MA, Lee K, Durrant JR, Baikie ID, Kim JS. Origin of Open-Circuit Voltage Losses in Perovskite Solar Cells Investigated by Surface Photovoltage Measurement. ACS Appl Mater Interfaces 2019; 11:46808-46817. [PMID: 31738042 DOI: 10.1021/acsami.9b16394] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Increasing the open-circuit voltage (Voc) is one of the key strategies for further improvement of the efficiency of perovskite solar cells. It requires fundamental understanding of the complex optoelectronic processes related to charge carrier generation, transport, extraction, and their loss mechanisms inside a device upon illumination. Herein, we report the important origin of Voc losses in methylammonium lead iodide perovskite (MAPI)-based solar cells, which results from undesirable positive charge (hole) accumulation at the interface between the perovskite photoactive layer and the poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) hole-transport layer. We show strong correlation between the thickness-dependent surface photovoltage and device performance, unraveling that the interfacial charge accumulation leads to charge carrier recombination and results in a large decrease in Voc for the PEDOT:PSS/MAPI inverted devices (180 mV reduction in 50 nm thick device compared to 230 nm thick one). In contrast, accumulated positive charges at the TiO2/MAPI interface modify interfacial energy band bending, which leads to an increase in Voc for the TiO2/MAPI conventional devices (70 mV increase in 50 nm thick device compared to 230 nm thick one). Our results provide an important guideline for better control of interfaces in perovskite solar cells to improve device performance further.
Collapse
Affiliation(s)
| | | | | | | | | | - Jinho Lee
- Heeger Center for Advanced Materials and Research Institute for Solar and Sustainable Energies , Gwangju Institute of Science and Technology , Gwangju 61005 , Republic of Korea
| | | | - Kwanghee Lee
- Heeger Center for Advanced Materials and Research Institute for Solar and Sustainable Energies , Gwangju Institute of Science and Technology , Gwangju 61005 , Republic of Korea
| | | | - Iain D Baikie
- KP Technology , Burn Street , Wick KW1 5EH , Caithness, U.K
| | | |
Collapse
|
12
|
Sun C, Pan F, Chen S, Wang R, Sun R, Shang Z, Qiu B, Min J, Lv M, Meng L, Zhang C, Xiao M, Yang C, Li Y. Achieving Fast Charge Separation and Low Nonradiative Recombination Loss by Rational Fluorination for High-Efficiency Polymer Solar Cells. Adv Mater 2019; 31:e1905480. [PMID: 31867848 DOI: 10.1002/adma.201905480] [Citation(s) in RCA: 57] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2019] [Revised: 10/17/2019] [Indexed: 05/20/2023]
Abstract
Four low-cost copolymer donors of poly(thiophene-quinoxaline) (PTQ) derivatives are demonstrated with different fluorine substitution forms to investigate the effect of fluorination forms on charge separation and voltage loss (Vloss ) of the polymer solar cells (PSCs) with the PTQ derivatives as donor and a A-DA'D-A-structured molecule Y6 as acceptor. The four PTQ derivatives are PTQ7 without fluorination, PTQ8 with bifluorine substituents on its thiophene D-unit, PTQ9, and PTQ10 with monofluorine and bifluorine substituents on their quinoxaline A-unit respectively. The PTQ8- based PSC demonstrates a low power conversion efficiency (PCE) of 0.90% due to the mismatch in the highest occupied molecular orbital (HOMO) energy levels alignment between the donor and acceptor. In contrast, the devices based on PTQ9 and PTQ10 show enhanced charge-separation behavior and gradually reduced Vloss , due to the gradually reduced nonradiative recombination loss in comparison with the PTQ7-based device. As a result, the PTQ10-based PSC demonstrates an impressive PCE of 16.21% with high open-circuit voltage and large short-circuit current density simultaneously, and its Vloss is reduced to 0.549 V. The results indicate that rational fluorination of the polymer donors is a feasible method to achieve fast charge separation and low Vloss simultaneously in the PSCs.
Collapse
Affiliation(s)
- Chenkai Sun
- Beijing National Laboratory for Molecular Sciences, CAS 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
| | - Fei Pan
- Beijing National Laboratory for Molecular Sciences, CAS 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
| | - Shanshan Chen
- MOE Key Laboratory of Low-Grade Energy Utilization Technologies and Systems, CQU-NUS Renewable Energy Materials & Devices Joint Laboratory, School of Energy & Power Engineering, Chongqing University, Chongqing, 400044, China
- Department of Energy Engineering, School of Energy and Chemical Engineering, Low Dimensional Carbon Materials Center, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 689-798, Republic of Korea
| | - Rui Wang
- National Laboratory of Solid State Microstructures, School of Physics, and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, 210093, China
| | - Rui Sun
- The Institute for Advanced Studies, Wuhan University, Wuhan, 430072, China
| | - Ziya Shang
- Beijing National Laboratory for Molecular Sciences, CAS 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
| | - Beibei Qiu
- Beijing National Laboratory for Molecular Sciences, CAS 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
| | - Jie Min
- The Institute for Advanced Studies, Wuhan University, Wuhan, 430072, China
| | - Menglan Lv
- School of Chemical Engineering, Guizhou Institute of Technology, Guiyang, 550003, China
| | - Lei Meng
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
| | - Chunfeng Zhang
- National Laboratory of Solid State Microstructures, School of Physics, and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, 210093, China
| | - Min Xiao
- National Laboratory of Solid State Microstructures, School of Physics, and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, 210093, China
| | - Changduk Yang
- Department of Energy Engineering, School of Energy and Chemical Engineering, Low Dimensional Carbon Materials Center, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 689-798, Republic of Korea
| | - Yongfang Li
- Beijing National Laboratory for Molecular Sciences, CAS 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
- Laboratory of Advanced Optoelectronic Materials, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, Jiangsu, 215123, China
| |
Collapse
|
13
|
Lu Q, Qiu M, Zhao M, Li Z, Li Y. Modification of NFA-Conjugated Bridges with Symmetric Structures for High-Efficiency Non-Fullerene PSCs. Polymers (Basel) 2019; 11:E958. [PMID: 31159494 PMCID: PMC6630734 DOI: 10.3390/polym11060958] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [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: 04/07/2019] [Revised: 05/06/2019] [Accepted: 05/10/2019] [Indexed: 11/17/2022] Open
Abstract
As electron acceptors, non-fullerene molecules can overcome the shortcomings of fullerenes and their derivatives (such as high cost, poor co-solubility, and weak light absorption). The photoelectric properties of two potential non-fullerene polymer solar cells (PSCs) PBDB-T:IF-TN (PB:IF) and PBDB-T:IDT-TN (PB:IDT) are studied by density functional theory (DFT) and time-dependent DFT (TD-DFT). Based on the optimized structure of the ground state, the effects of the electron donor (D) and electron acceptor (A) (D/A) interfaces PBDB-T/IF-TN (PB/IF) and PBDB-T/IDT-TN (PB/IDT) are studied by a quantum-chemical method (QM) and Marcus theory. Firstly, for two non-fullerene acceptors (NFAs) IF-TN and IDT-TN, the NFA IDT-TN has better optical absorption ability and better electron transport ability than IF-TN. Secondly, for the D/A interfaces PB/IF and PB/IDT, they both have high optical absorption and electron transfer abilities, and PB/IDT has better optical absorption and lower exciton binding energy. Finally, some important parameters (open-circuit voltage, voltage loss, fill factor, and power conversion efficiency) are calculated and simulated by establishing the theoretical model. From the above analysis, the results show that the non-fullerene PSC PB:IDT has better photoelectric characteristics than PB:IF.
Collapse
Affiliation(s)
- Qiuchen Lu
- College of Science, Northeast Forestry University, Harbin 150040, China.
| | - Ming Qiu
- College of Science, Northeast Forestry University, Harbin 150040, China.
| | - Meiyu Zhao
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, China.
| | - Zhuo Li
- College of Science, Northeast Forestry University, Harbin 150040, China.
| | - Yuanzuo Li
- College of Science, Northeast Forestry University, Harbin 150040, China.
| |
Collapse
|
14
|
Chen S, Wang Y, Zhang L, Zhao J, Chen Y, Zhu D, Yao H, Zhang G, Ma W, Friend RH, Chow PCY, Gao F, Yan H. Efficient Nonfullerene Organic Solar Cells with Small Driving Forces for Both Hole and Electron Transfer. Adv Mater 2018; 30:e1804215. [PMID: 30276887 DOI: 10.1002/adma.201804215] [Citation(s) in RCA: 40] [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] [Subscribe] [Scholar Register] [Received: 07/03/2018] [Revised: 08/27/2018] [Indexed: 05/20/2023]
Abstract
State-of-the-art organic solar cells (OSCs) typically suffer from large voltage loss (Vloss ) compared to their inorganic and perovskite counterparts. There are some successful attempts to reduce the Vloss by decreasing the energy offsets between the donor and acceptor materials, and the OSC community has demonstrated efficient systems with either small highest occupied molecular orbital (HOMO) offset or negligible lowest unoccupied molecular orbital (LUMO) offset between donors and acceptors. However, efficient OSCs based on a donor/acceptor system with both small HOMO and LUMO offsets have not been demonstrated simultaneously. In this work, an efficient nonfullerene OSC is reported based on a donor polymer named PffBT2T-TT and a small-molecular acceptor (O-IDTBR), which have identical bandgaps and close energy levels. The Fourier-transform photocurrent spectroscopy external quantum efficiency (FTPS-EQE) spectrum of the blend overlaps with those of neat PffBT2T-TT and O-IDTBR, indicating the small driving forces for both hole and electron transfer. Meanwhile, the OSCs exhibit a high electroluminescence quantum efficiency (EQEEL ) of ≈1 × 10-4 , which leads to a significantly minimized nonradiative Vloss of 0.24 V. Despite the small driving forces and a low Vloss , a maximum EQE of 67% and a high power conversion efficiency of 10.4% can still be achieved.
Collapse
Affiliation(s)
- Shangshang Chen
- Department of Chemistry, Energy Institute and Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration & Reconstruction, Hong Kong University of Science and Technology (HKUST), Clear Water Bay, Kowloon, Hong Kong
| | - Yuming Wang
- Department of Physics, Chemistry and Biology (IFM), Linköping University, Linköping, SE-58183, Sweden
| | - Lin Zhang
- State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an, 710049, P. R. China
| | - Jingbo Zhao
- Department of Chemistry, Energy Institute and Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration & Reconstruction, Hong Kong University of Science and Technology (HKUST), Clear Water Bay, Kowloon, Hong Kong
| | - Yuzhong Chen
- Department of Chemistry, Energy Institute and Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration & Reconstruction, Hong Kong University of Science and Technology (HKUST), Clear Water Bay, Kowloon, Hong Kong
| | - Danlei Zhu
- Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
| | - Huatong Yao
- Department of Chemistry, Energy Institute and Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration & Reconstruction, Hong Kong University of Science and Technology (HKUST), Clear Water Bay, Kowloon, Hong Kong
| | - Guangye Zhang
- Department of Chemistry, Energy Institute and Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration & Reconstruction, Hong Kong University of Science and Technology (HKUST), Clear Water Bay, Kowloon, Hong Kong
| | - Wei Ma
- State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an, 710049, P. R. China
| | - Richard H Friend
- Cavendish Laboratory, J. J. Thomson Avenue, Cambridge, CB3 0HE, UK
| | - Philip C Y Chow
- Department of Chemistry, Energy Institute and Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration & Reconstruction, Hong Kong University of Science and Technology (HKUST), Clear Water Bay, Kowloon, Hong Kong
- HKUST-Shenzhen Research Institute, No. 9 Yuexing 1st RD, Hi-tech Park, Nanshan, Shenzhen, 518057, P. R. China
| | - Feng Gao
- Department of Physics, Chemistry and Biology (IFM), Linköping University, Linköping, SE-58183, Sweden
| | - He Yan
- Department of Chemistry, Energy Institute and Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration & Reconstruction, Hong Kong University of Science and Technology (HKUST), Clear Water Bay, Kowloon, Hong Kong
- HKUST-Shenzhen Research Institute, No. 9 Yuexing 1st RD, Hi-tech Park, Nanshan, Shenzhen, 518057, P. R. China
| |
Collapse
|
15
|
Kapil G, Ripolles TS, Hamada K, Ogomi Y, Bessho T, Kinoshita T, Chantana J, Yoshino K, Shen Q, Toyoda T, Minemoto T, Murakami TN, Segawa H, Hayase S. Highly Efficient 17.6% Tin-Lead Mixed Perovskite Solar Cells Realized through Spike Structure. Nano Lett 2018; 18:3600-3607. [PMID: 29701473 DOI: 10.1021/acs.nanolett.8b00701] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Frequently observed high Voc loss in tin-lead mixed perovskite solar cells is considered to be one of the serious bottle-necks in spite of the high attainable Jsc due to wide wavelength photon harvesting. An amicable solution to minimize the Voc loss up to 0.50 V has been demonstrated by introducing an n-type interface with spike structure between the absorber and electron transport layer inspired by highly efficient Cu(In,Ga)Se2 solar cells. Introduction of a conduction band offset of ∼0.15 eV with a thin phenyl-C61-butyric acid methyl ester layer (∼25 nm) on the top of perovskite absorber resulted into improved Voc of 0.75 V leading to best power conversion efficiency of 17.6%. This enhancement is attributed to the facile charge flow at the interface owing to the reduction of interfacial traps and carrier recombination with spike structure as evidenced by time-resolved photoluminescence, nanosecond transient absorption, and electrochemical impedance spectroscopy measurements.
Collapse
Affiliation(s)
- Gaurav Kapil
- Research Center for Advanced Science and Technology , The University of Tokyo , 4-6-1, Komaba , Meguro-ku, Tokyo 153-8904 , Japan
| | - Teresa S Ripolles
- Graduate School of Life Science and Systems Engineering , Kyushu Institute of Technology , 2-4 Hibikino, Wakamatsu-ku , Kitakyushu 808-0196 Japan
| | - Kengo Hamada
- Graduate School of Life Science and Systems Engineering , Kyushu Institute of Technology , 2-4 Hibikino, Wakamatsu-ku , Kitakyushu 808-0196 Japan
| | - Yuhei Ogomi
- Graduate School of Life Science and Systems Engineering , Kyushu Institute of Technology , 2-4 Hibikino, Wakamatsu-ku , Kitakyushu 808-0196 Japan
| | - Takeru Bessho
- Research Center for Advanced Science and Technology , The University of Tokyo , 4-6-1, Komaba , Meguro-ku, Tokyo 153-8904 , Japan
| | - Takumi Kinoshita
- Research Center for Advanced Science and Technology , The University of Tokyo , 4-6-1, Komaba , Meguro-ku, Tokyo 153-8904 , Japan
| | - Jakapan Chantana
- Department of Electrical and Electronic Engineering , Ritsumeikan University , 1-1-1 Nojihigashi , Kusatsu, Shiga 525-8577 , Japan
| | - Kenji Yoshino
- Faculty of Engineering , University of Miyazaki , Gakuen-kibanadai-nishi-1-1 , Miyazaki , 889-2192 , Japan
| | - Qing Shen
- Graduate school of Informatics and Engineering , University of Electro-Communication , 1-5-1 Chofugaoka , Chofu, Tokyo , 182-8585 , Japan
| | - Taro Toyoda
- Graduate school of Informatics and Engineering , University of Electro-Communication , 1-5-1 Chofugaoka , Chofu, Tokyo , 182-8585 , Japan
| | - Takashi Minemoto
- Department of Electrical and Electronic Engineering , Ritsumeikan University , 1-1-1 Nojihigashi , Kusatsu, Shiga 525-8577 , Japan
| | - Takurou N Murakami
- The National Institute of Advanced Industrial Science and Technology , 1-1-1 Higashi , Tsukuba, Ibaraki 305-8565 , Japan
| | - Hiroshi Segawa
- Research Center for Advanced Science and Technology , The University of Tokyo , 4-6-1, Komaba , Meguro-ku, Tokyo 153-8904 , Japan
| | - Shuzi Hayase
- Graduate School of Life Science and Systems Engineering , Kyushu Institute of Technology , 2-4 Hibikino, Wakamatsu-ku , Kitakyushu 808-0196 Japan
| |
Collapse
|
16
|
Aqoma H, Al Mubarok M, Hadmojo WT, Lee EH, Kim TW, Ahn TK, Oh SH, Jang SY. High-Efficiency Photovoltaic Devices using Trap-Controlled Quantum-Dot Ink prepared via Phase-Transfer Exchange. Adv Mater 2017; 29:1605756. [PMID: 28266746 DOI: 10.1002/adma.201605756] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2016] [Revised: 01/20/2017] [Indexed: 05/19/2023]
Abstract
Colloidal-quantum-dot (CQD) photovoltaic devices are promising candidates for low-cost power sources owing to their low-temperature solution processability and bandgap tunability. A power conversion efficiency (PCE) of >10% is achieved for these devices; however, there are several remaining obstacles to their commercialization, including their high energy loss due to surface trap states and the complexity of the multiple-step CQD-layer-deposition process. Herein, high-efficiency photovoltaic devices prepared with CQD-ink using a phase-transfer-exchange (PTE) method are reported. Using CQD-ink, the fabrication of active layers by single-step coating and the suppression of surface trap states are achieved simultaneously. The CQD-ink photovoltaic devices achieve much higher PCEs (10.15% with a certified PCE of 9.61%) than the control devices (7.85%) owing to improved charge drift and diffusion. Notably, the CQD-ink devices show much lower energy loss than other reported high-efficiency CQD devices. This result reveals that the PTE method is an effective strategy for controlling trap states in CQDs.
Collapse
Affiliation(s)
- Havid Aqoma
- Department of Chemistry, Kookmin University, 77 Jeongneung-ro, Seongbuk-gu, Seoul, 136-702, Republic of Korea
| | - Muhibullah Al Mubarok
- Department of Chemistry, Kookmin University, 77 Jeongneung-ro, Seongbuk-gu, Seoul, 136-702, Republic of Korea
| | - Wisnu Tantyo Hadmojo
- Department of Chemistry, Kookmin University, 77 Jeongneung-ro, Seongbuk-gu, Seoul, 136-702, Republic of Korea
| | - Eun-Hye Lee
- Soft Innovative Materials Research Center, Institute of Advanced Composite Materials, Korea Institute of Science and Technology, Joellabuk-do, 565-905, Republic of Korea
| | - Tae-Wook Kim
- Soft Innovative Materials Research Center, Institute of Advanced Composite Materials, Korea Institute of Science and Technology, Joellabuk-do, 565-905, Republic of Korea
| | - Tae Kyu Ahn
- Department of Energy Science, Sungkyunkwan University, 2066 Seobu-Ro, Jangsan-Gu, Suwon, 440-746, Republic of Korea
| | - Seung-Hwan Oh
- Radiation Research Division for Industry and Environment, Korea Atomic Energy Research Institute (KAERI), 29 Geumgu-gil, Jeongeup-si, Jeollabuk-do, 580-185, Korea
| | - Sung-Yeon Jang
- Department of Chemistry, Kookmin University, 77 Jeongneung-ro, Seongbuk-gu, Seoul, 136-702, Republic of Korea
| |
Collapse
|