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Dai Z, Guo Q, Ding Y, Wang Z, Jiang N, Zhou E. Constructing D-π-A Type Polymers as Dopant-Free Hole Transport Materials for High-Performance CsPbI 2Br Perovskite Solar Cells. ACS APPLIED MATERIALS & INTERFACES 2023; 15:9784-9791. [PMID: 36757325 DOI: 10.1021/acsami.2c23036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Hole-transporting materials (HTMs) play a major role in efficient and stable perovskite solar cells (PSCs), especially for CsPbI2Br inorganic PSC. Among them, dopant-free conjugated polymers attract more attention because of the advantages of high hole mobility and high stability. However, the relationship between the polymer structure and the photovoltaic performance is rarely investigated. In this work, we choose three similar D-π-A-type polymers, where the D unit and π-bridge are fixed into benzodithiophene and thiophene, respectively. By changing the A units from classic benzodithiophene-4,8-dione and benzotriazole to quinoxaline, three polymers PBDB-T, J52, and PE61 are utilized as dopant-free HTMs for CsPbI2Br PSCs. The energy levels, hole mobility, and molecular stacking of the three HTMs, as well as charge transfer between CsPbI2Br/HTMs, are fully investigated. Finally, the device based on PE61 HTM obtains the champion power conversion efficiency of 16.72%, obviously higher than PBDB-T (15.13%) and J52 (15.52%). In addition, the device based on PE61 HTM displays the best long-term stability. Those results demonstrate that quinoxaline is also an effective A unit to construct D-π-A-type polymers as HTMs and improve the photovoltaic performance of PSCs.
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Affiliation(s)
- Zheng Dai
- 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
| | - Qiang Guo
- Henan Institute of Advanced Technology, School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450003, China
| | - Yuanjia Ding
- 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
| | - Zhibin Wang
- College of Physics and Energy, Fujian Normal University, Fuzhou 350117, China
| | - Naizhong Jiang
- College of Physics and Energy, Fujian Normal University, Fuzhou 350117, 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
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Wu X, Li B, Zhu Z, Chueh CC, Jen AKY. Designs from single junctions, heterojunctions to multijunctions for high-performance perovskite solar cells. Chem Soc Rev 2021; 50:13090-13128. [PMID: 34676850 DOI: 10.1039/d1cs00841b] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Hybrid metal-halide perovskite solar cells (PVSCs) have drawn unprecedented attention during the last decade due to their superior photovoltaic performance, facile and low-cost fabrication, and potential for roll-to-roll mass production and application for portable devices. Through collective composition, interface, and process engineering, a comprehensive understanding of the structure-property relationship and carrier dynamics of perovskites has been established to help achieve a very high certified power conversion efficiency (PCE) of 25.5%. Apart from material properties, the modified heterojunction design and device configuration evolution also play crucial roles in enhancing the efficiency. The adoption and/or modification of heterojunction structures have been demonstrated to effectively suppress the carrier recombination and potential losses in PVSCs. Moreover, the employment of multijunction structures has been shown to reduce thermalization losses, achieving a high PCE of 29.52% in perovskite/silicon tandem solar cells. Therefore, understanding the evolution of the device configuration of PVSCs from single junction, heterojunction to multijunction designs is helpful for the researchers in this field to further boost the PCE beyond 30%. Herein, we summarize the evolution and progress of the single junction, heterojunction and multijunction designs for high-performance PVSCs. A comprehensive review of the fundamentals and working principles of these designs is presented. We first introduce the basic working principles of single junction PVSCs and the intrinsic properties (such as crystallinity and defects) in perovskite films. Afterwards, the progress of diverse heterojunction designs and perovskite-based multijunction solar cells is synopsized and reviewed. Meanwhile, the challenges and strategies to further enhance the performance are also summarized. At the end, the perspectives on the future development of perovskite-based solar cells are provided. We hope this review can provide the readers with a quick catchup on this emerging solution-processable photovoltaic technology, which is currently at the transition stage towards commercialization.
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Affiliation(s)
- Xin Wu
- Department of Chemistry, City University of Hong Kong, Kowloon 999077, Hong Kong.
| | - Bo Li
- Department of Materials Science and Engineering, City University of Hong Kong, Kowloon 999077, Hong Kong
| | - Zonglong Zhu
- Department of Chemistry, City University of Hong Kong, Kowloon 999077, Hong Kong. .,Hong Kong Institute for Clean Energy, City University of Hong Kong, Kowloon 999077, Hong Kong
| | - Chu-Chen Chueh
- Department of Chemical Engineering and Advanced Research Center for Green Materials Science and Technology, National Taiwan University, Taipei, 10617, Taiwan.
| | - Alex K-Y Jen
- Department of Chemistry, City University of Hong Kong, Kowloon 999077, Hong Kong. .,Department of Materials Science and Engineering, City University of Hong Kong, Kowloon 999077, Hong Kong.,Hong Kong Institute for Clean Energy, City University of Hong Kong, Kowloon 999077, Hong Kong.,Department of Materials Science & Engineering, University of Washington, Seattle, Washington, 98195, USA
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Wang YK, Ma H, Chen Q, Sun Q, Liu Z, Sun Z, Jia X, Zhu Y, Zhang S, Zhang J, Yuan N, Ding J, Zhou Y, Song B, Li Y. Fluorinating Dopant-Free Small-Molecule Hole-Transport Material to Enhance the Photovoltaic Property. ACS APPLIED MATERIALS & INTERFACES 2021; 13:7705-7713. [PMID: 33529006 DOI: 10.1021/acsami.0c20584] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
For the stability and commercial development of the perovskite solar cells (PVK-SCs), synthesizing high-efficiency dopant-free hole-transport materials (DF-HTMs) and exploring how the DF-HTM structure affects the photovoltaic performance is inevitable. Two small-molecule DF-HTMs based on 2,2'-bithiophene as a central part (denoted by BT-MTP and DFBT-MTP) were designed and synthesized. DFBT-MTP, with two more fluorine atoms substituted on the 2,2'-bithiophene group, exhibited enhanced photovoltaic property as DF-HTMs, including larger backbone planarity, declining highest occupied molecular orbit (HOMO) energy level, increasing hole transportation, more effective passivation, and efficient charge extraction. With fluorinated DFBT-MTP being applied as DF-HTMs in p-i-n PVK-SCs, an efficiency of 20.2% was achieved, showing ∼35% efficiency increase compared with the nonfluorinated BT-MTP-based devices. The leading power conversion efficiency (PCE) indicates that the fluorinated compounds should be a promising direction for exploring high-performance DF-HTMs in the p-i-n PVK-SCs.
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Affiliation(s)
- Yi Kai Wang
- School of Material Science & Engineering, National Experimental Demonstration Center for Materials Science and Engineering, Jiangsu Collaborative Innovation Centre of Photovoltaic Science & Engineering, Changzhou University, Changzhou 213164, Jiangsu, China
| | - Hui Ma
- Laboratory of Advanced Optoelectronic Materials, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
| | - Qiaoyun Chen
- Laboratory of Advanced Optoelectronic Materials, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
| | - Quan Sun
- School of Material Science & Engineering, National Experimental Demonstration Center for Materials Science and Engineering, Jiangsu Collaborative Innovation Centre of Photovoltaic Science & Engineering, Changzhou University, Changzhou 213164, Jiangsu, China
| | - Zhengxu Liu
- School of Material Science & Engineering, National Experimental Demonstration Center for Materials Science and Engineering, Jiangsu Collaborative Innovation Centre of Photovoltaic Science & Engineering, Changzhou University, Changzhou 213164, Jiangsu, China
| | - Zhe Sun
- School of Material Science & Engineering, National Experimental Demonstration Center for Materials Science and Engineering, Jiangsu Collaborative Innovation Centre of Photovoltaic Science & Engineering, Changzhou University, Changzhou 213164, Jiangsu, China
| | - Xuguang Jia
- School of Material Science & Engineering, National Experimental Demonstration Center for Materials Science and Engineering, Jiangsu Collaborative Innovation Centre of Photovoltaic Science & Engineering, Changzhou University, Changzhou 213164, Jiangsu, China
| | - Yuanyuan Zhu
- School of Material Science & Engineering, National Experimental Demonstration Center for Materials Science and Engineering, Jiangsu Collaborative Innovation Centre of Photovoltaic Science & Engineering, Changzhou University, Changzhou 213164, Jiangsu, China
| | - Shuai Zhang
- School of Material Science & Engineering, National Experimental Demonstration Center for Materials Science and Engineering, Jiangsu Collaborative Innovation Centre of Photovoltaic Science & Engineering, Changzhou University, Changzhou 213164, Jiangsu, China
| | - Jing Zhang
- School of Material Science & Engineering, National Experimental Demonstration Center for Materials Science and Engineering, Jiangsu Collaborative Innovation Centre of Photovoltaic Science & Engineering, Changzhou University, Changzhou 213164, Jiangsu, China
| | - Ningyi Yuan
- School of Material Science & Engineering, National Experimental Demonstration Center for Materials Science and Engineering, Jiangsu Collaborative Innovation Centre of Photovoltaic Science & Engineering, Changzhou University, Changzhou 213164, Jiangsu, China
| | - Jianning Ding
- School of Material Science & Engineering, National Experimental Demonstration Center for Materials Science and Engineering, Jiangsu Collaborative Innovation Centre of Photovoltaic Science & Engineering, Changzhou University, Changzhou 213164, Jiangsu, China
| | - Yi Zhou
- Laboratory of Advanced Optoelectronic Materials, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
| | - Bo Song
- Laboratory of Advanced Optoelectronic Materials, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
| | - Yongfang Li
- Laboratory of Advanced Optoelectronic Materials, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
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Lang K, Guo Q, He Z, Bai Y, Yao J, Wakeel M, Alhodaly MS, Hayat T, Tan Z. High Performance Tandem Solar Cells with Inorganic Perovskite and Organic Conjugated Molecules to Realize Complementary Absorption. J Phys Chem Lett 2020; 11:9596-9604. [PMID: 33119984 DOI: 10.1021/acs.jpclett.0c02794] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
All-inorganic halide perovskite solar cells (PerSCs) have achieved rapid development in recent years. However, limited by narrow absorption bands, the power conversion efficiency (PCE) of all-inorganic halide PerSCs lag behind the organic-inorganic hybrid ones. In this contribution, to expand their absorption spectra and enhance the PCE, tandem solar cells (TSCs) with inorganic perovskite and organic conjugated molecules are constructed, utilizing CsPbI2Br as an ultraviolet-visible light absorber and a PTB7-Th:IEICO-4F bulk-heterojunction (BHJ) active layer as a near-infrared light absorber. To physically and electronically connect the front and rear subcells, P3HT/MoO3/Ag/PFN-Br is introduced as an interconnecting junction. Finally, the TSCs exhibit a remarkably higher PCE of 17.24% compared to that of the single junction PerSCs (12.09%) and organic solar cells (OSCs) (10.89%). These results indicate that the combination of all-inorganic perovskite and a low bandgap organic active layer for TSCs is a feasible approach to realize broad spectra utilization and efficiency enhancement.
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Affiliation(s)
- Kun Lang
- State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, North China Electric Power University, Beijing 102206, China
| | - Qiang Guo
- Henan Institute of Advanced Technology, Zhengzhou University, Zhengzhou 450002, China
| | - Zhangwei He
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Yiming Bai
- State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, North China Electric Power University, Beijing 102206, China
| | - Jianxi Yao
- State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, North China Electric Power University, Beijing 102206, China
| | - Muhammad Wakeel
- Department of Environmental Sciences, COMSATS University Islamabad (CUI), Vehari Campus, Islamabad 45550, Pakistan
| | - Mohammed Sh Alhodaly
- NAAM Research Group, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Tasawar Hayat
- NAAM Research Group, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Zhan'ao Tan
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
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