Article
Materials Science, Multidisciplinary
Zhimin Fang, Lingbo Jia, Nan Yan, Xiaofen Jiang, Xiaodong Ren, Shangfeng Yang, Shengzhong (Frank) Liu
Summary: In this study, an in situ defect passivation strategy was proposed to reduce nonradiative recombination and minimize open-circuit voltage loss in wide-bandgap inverted perovskite solar cells. The proton-transfer-induced passivation effectively improved the power conversion efficiency and photostability of the cells.
Article
Energy & Fuels
Khan Mamun Reza, Ashim Gurung, Behzad Bahrami, Ashraful Haider Chowdhury, Nabin Ghimire, Rajesh Pathak, Sheikh Ifatur Rahman, Md Ashiqur Rahman Laskar, Ke Chen, Raja Sekhar Bobba, Buddhi Sagar Lamsal, Liton Kumar Biswas, Yue Zhou, Brian Logue, Quinn Qiao
Summary: The study presents a method for passivating defects in wide-bandgap perovskites using cation management and secondary growth techniques. Reduction of unreacted PbX2 achieves a highly crystalline perovskite surface, leading to an enhanced efficiency of wide-bandgap perovskite solar cells.
Article
Engineering, Environmental
Padmini Pandey, SungWon Cho, Shuzi Hayase, Jung Sang Cho, Dong-Won Kang
Summary: This review focuses on the existing challenges in Pb-free wide bandgap perovskite solar cells (PSCs) and discusses new strategies, such as compositional engineering and defect passivation, to enhance device performance.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Physical
Fan Xu, Meng Zhang, Zikun Li, Xiaoyu Yang, Rui Zhu
Summary: Wide-bandgap (WBG) perovskite solar cells (PSCs) are promising candidates for multijunction tandem and building photovoltaics, but their performance still lags behind pure-iodide counterparts due to complex compositional evolution, significant photovoltage deficits, and intrinsic spectral losses. This article comprehensively discusses the drawbacks of WBG PSCs from a device perspective and proposes three critical issues for growing high-quality WBG perovskites. The prospects for future advancements and commercialization of WBG PSCs are also presented to guide upcoming research hotspots.
ADVANCED ENERGY MATERIALS
(2023)
Article
Nanoscience & Nanotechnology
Liu Yang, Yongbin Jin, Zheng Fang, Jinyan Zhang, Ziang Nan, Lingfang Zheng, Huihu Zhuang, Qinghua Zeng, Kaikai Liu, Bingru Deng, Huiping Feng, Yujie Luo, Chengbo Tian, Changcai Cui, Liqiang Xie, Xipeng Xu, Zhanhua Wei
Summary: By forming a 2D perovskite passivation layer on top of the wide-bandgap perovskite solar cell active layer, the non-radiative recombination and open-circuit voltage deficits can be addressed, improving the photovoltaic performance.
NANO-MICRO LETTERS
(2023)
Article
Nanoscience & Nanotechnology
Rui He, Tingting Chen, Zhipeng Xuan, Tianzhen Guo, Jincheng Luo, Yiting Jiang, Wenwu Wang, Jingquan Zhang, Xia Hao, Lili Wu, Ye Wang, Iordania Constantinou, Shengqiang Ren, Dewei Zhao
Summary: Adding 1,3,5-tris (bromomethyl) benzene (TBB) to passivate wide-bandgap perovskite absorber enhances the open-circuit voltage and power conversion efficiency of solar cells, making them suitable for all-perovskite tandem devices.
Article
Chemistry, Multidisciplinary
Tianyi Huang, Rui Wang, Selbi Nuryyeva, Shaun Tan, Jingjing Xue, Yepin Zhao, Quantan Wu, Marc H. Weber, Pei Cheng, Dong Meng, Ilhan Yavuz, K. N. Houk, Yang Yang
Summary: The superior bandgap tunability of solution-processed halide perovskite makes it a promising candidate for multi-junction photovoltaics, with the additional benefit of simplified technology transfer when optically coupling wide-gap perovskite with commercially available PVs such as silicon and CIGS. By utilizing a sequential fluoride and organic ammonium salt surface passivation strategy, the authors were able to control non-radiative energy losses and achieve high efficiencies in wide-gap perovskite solar cells, especially when stacked with commercial Si and CIGS products.
Article
Chemistry, Physical
Yunxuan Cao, Hongliang Liu, Fangliang Gao, Dongyang Li, Ling Xiang, Jinwei Gao, Peng Gao, Yong Zhang, Shuti Li
Summary: In this study, the crystallization kinetics evolution of triple-cation hybrid halide wide bandgap perovskites was controlled by using potassium iodide (KI) additive and solvent annealing method. The interface was modified with phenethylammonium iodide (PEAI) to enhance the electron collection efficiency and reduce non-radiative recombination. As a result, the photovoltaic performance of the solar cells significantly improved, achieving an impressive power conversion efficiency of 15.7%.
SURFACES AND INTERFACES
(2023)
Article
Nanoscience & Nanotechnology
Rui He, Tingting Chen, Zhipeng Xuan, Tianzhen Guo, Jincheng Luo, Yiting Jiang, Wenwu Wang, Jingquan Zhang, Xia Hao, Lili Wu, Ye Wang, Iordania Constantinou, Shengqiang Ren, Dewei Zhao
Summary: Adding TBB into wide-bandgap perovskite absorber can passivate the perovskite film, reduce defects, and improve energy level matching, leading to enhanced power conversion efficiency and open-circuit voltage in inverted perovskite solar cells.
Article
Chemistry, Multidisciplinary
Lisha Xie, Jian Liu, Jun Li, Chang Liu, Zhenwei Pu, Peng Xu, Yaohua Wang, Yuanyuan Meng, Mengjin Yang, Ziyi Ge
Summary: In this work, a deformable coumarin is used as a multifunctional additive for formamidinium-cesium (FA-Cs) perovskite solar cells. Coumarin passivates defects and affects colloidal size distributions, leading to improved carrier extraction and reduced trap-assisted recombination. Coumarin treatment also releases residual stress, improving the performance of flexible perovskite solar cells.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Lisha Xie, Jian Liu, Jun Li, Chang Liu, Zhenwei Pu, Peng Xu, Yaohua Wang, Yuanyuan Meng, Mengjin Yang, Ziyi Ge
Summary: In this study, a deformable coumarin is used as an additive to improve the performance and stability of perovskite solar cells. The coumarin can passivate defects in perovskite and affect the particle size distribution, resulting in improved crystallinity of the perovskite film. Additionally, the coumarin treatment can release residual stress. As a result, the champion power conversion efficiencies of 23.18% and 24.14% are obtained for Br-rich and Br-poor based devices, respectively. Furthermore, the flexible PSCs based on Br-poor perovskite exhibit an excellent PCE of 23.13% and show good thermal and light stability.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Physical
Gangfeng Su, Runnan Yu, Yiman Dong, Zhangwei He, Yuling Zhang, Ruyue Wang, Qi Dang, Shihao Sha, Qianglong Lv, Zhiyang Xu, Zhuoxu Liu, Minghua Li, Zhan'ao Tan
Summary: This study presents a method to slow down the rapid crystallization of wide-bandgap perovskite solar cells by introducing triethanolamine borate, resulting in highly crystalline and uniform films with reduced defects. The devices based on this method achieved a high efficiency of 21.55% with a low VOC deficit of 0.41 V. Additionally, by combining a WBG subcell with a narrow-bandgap tin-based PSC, a high efficiency of 26.48% was achieved for the four-terminal tandem solar cell.
ADVANCED ENERGY MATERIALS
(2023)
Article
Multidisciplinary Sciences
Qi Cao, Yongjiang Li, Hong Zhang, Jiabao Yang, Jian Han, Ting Xu, Shuangjie Wang, Zishuai Wang, Bingyu Gao, Junsong Zhao, Xiaoqiang Li, Xiaoyan Ma, Shaik Mohammed Zakeeruddin, Wei E. Sha, Xuanhua Li, Michael Graetzel
Summary: This study introduces a star-shaped polymer to enhance charge transport and inhibit ion migration in perovskite solar cells, leading to improved efficiency and stability. Modified devices demonstrate significant performance enhancements and excellent long-term operational stability.
Article
Chemistry, Physical
Jiang Liu, Erkan Aydin, Jun Yin, Michele De Bastiani, Furkan H. Isikgor, Atteq Ur Rehman, Emre Yengel, Esma Ugur, George T. Harrison, Mingcong Wang, Yajun Gao, Jafar Iqbal Khan, Maxime Babics, Thomas G. Allen, Anand S. Subbiah, Kaichen Zhu, Xiaopeng Zheng, Wenbo Yan, Fuzong Xu, Michael F. Salvador, Osman M. Bakr, Thomas D. Anthopoulos, Mario Lanza, Omar F. Mohammed, Frederic Laquai, Stefaan De Wolf
Summary: Adding carbazole as an additive to the perovskite precursor solution can enhance the stability and performance of perovskite solar cells in a monolithic tandem configuration. The improved devices demonstrate a high stabilized PCE and excellent performance in hot and humid outdoor environments, showing enhanced phase stability.
Article
Chemistry, Multidisciplinary
Renjie Li, Bingbing Chen, Ningyu Ren, Pengyang Wang, Biao Shi, Qiaojing Xu, Hua Zhao, Wei Han, Zhao Zhu, Jingjing Liu, Qian Huang, Dekun Zhang, Ying Zhao, Xiaodan Zhang
Summary: By widening the bandgap and controlling the redox chemistry at the perovskite/NiOx interface through the addition of CsPbCl3-clusters and CsCl, the study improved the efficiency of p-i-n PSCs and successfully fabricated highly efficient and stable NiOx-based perovskite/silicon tandem solar cells.
ADVANCED MATERIALS
(2022)
Article
Chemistry, Physical
Zhaofeng Zhai, Nan Huang, Bing Yang, Chun Wang, Lusheng Liu, Jianhang Qiu, Dan Shi, Ziyao Yuan, Zhigang Lu, Haozhe Song, Meiqi Zhou, Bin Chen, Xin Jiang
JOURNAL OF PHYSICAL CHEMISTRY C
(2019)
Review
Chemistry, Multidisciplinary
Jianhang Qiu, Shihe Yang
Article
Nanoscience & Nanotechnology
Gaoxiang Wang, Lipeng Wang, Jianhang Qiu, Zheng Yan, Changji Li, Chunli Dai, Chao Zhen, Kaiping Tai, Wei Yu, Xin Jiang
ACS APPLIED MATERIALS & INTERFACES
(2020)
Article
Chemistry, Physical
Yang Zhao, Ying Li, Jixiang Qiao, Song Jiang, Pengyan Mao, Jianhang Qiu, Siqing Kang, Jun Tan, Kaiping Tai, Chang Liu
Article
Materials Science, Multidisciplinary
Ying Li, Jixiang Qiao, Yang Zhao, Qing Lan, Pengyan Mao, Jianhang Qiu, Kaiping Tai, Chang Liu, Huiming Cheng
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2020)
Article
Chemistry, Physical
Pengyan Mao, Jixiang Qiao, Yang Zhao, Song Jiang, Kan Cui, Jianhang Qiu, Kaiping Tai, Jun Tan, Chang Liu
Summary: Nanograined materials exhibit excellent properties due to their grain size effect, but often suffer from poor thermal stability. A bottom-up assembly strategy was used to create a hybrid of Cu nanograins and carbon nanotubes with enhanced thermal stability. The application of compressive hoop stress effectively inhibits grain morphology change, leading to a significantly increased volume fraction of interfaces and grain boundaries.
Article
Chemistry, Physical
Lipeng Wang, Zheng Yan, Jianhang Qiu, Jinbo Wu, Chao Zhen, Kaiping Tai, Xin Jiang, Shihe Yang
Summary: The study focused on constructing a 2D/3D heterostructure on the wide-bandgap perovskites (WBPs) surface to passivate defects and regulate interfacial properties by varying the chain length of alkylammonium bromides. Hexanelammonium bromide (HABr) showed superior performance in reducing defect density and achieving high photovoltaic efficiency. Additionally, HABr reduced interfacial capacitance and improved hole transport, leading to reduced hysteresis in the devices. Finally, HABr-induced hydrophobicity not only blocked moisture, but also slowed down migration of alkali cations, improving the moisture stability of WBP-based devices.
Article
Chemistry, Multidisciplinary
Lipeng Wang, Jianxing Xia, Zheng Yan, Peiquan Song, Chao Zhen, Xin Jiang, Guang Shao, Zeliang Qiu, Zhanhua Wei, Jianhang Qiu, Mohammad Khaja Nazeeruddin
Summary: This study reports the use of self-diffusion interfacial doping with ionic potassium L-aspartate to restrain carrier trap induced recombination in perovskite solar cells. The diffusion of potassium ions into the perovskite film provides an n-doping effect, leading to improved carrier transport efficiency and energy level alignment. The modified devices achieved high power conversion efficiency and enhanced stability.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Ligang Yuan, Weiya Zhu, Yiheng Zhang, Yuan Li, Christopher C. S. Chan, Minchao Qin, Jianhang Qiu, Kaicheng Zhang, Jiaxing Huang, Jiarong Wang, Huiming Luo, Zheng Zhang, Ruipeng Chen, Weixuan Liang, Qi Wei, Kam Sing Wong, Xinhui Lu, Ning Li, Christoph J. Brabec, Liming Ding, Keyou Yan
Summary: Researchers have developed a dopant-free hole transport material (HTM) to improve the stability of n-i-p perovskite solar cells (PSCs). This new material has shown high power conversion efficiency and long-term stability.
ENERGY & ENVIRONMENTAL SCIENCE
(2023)
Article
Chemistry, Physical
Ligang Yuan, Jiarong Wang, Peng Huang, Qixin Yin, Shibing Zou, Lipeng Wang, Zheng Zhang, Huiming Luo, Feng Liu, Jianhang Qiu, Jiangsheng Xie, Liming Ding, Keyou Yan
Summary: Post-treatment is essential for perovskite solar cells, and this study reveals that chloride redistribution in the perovskite film plays a crucial role in improving performance. Chloride enrichment improves charge transport/recombination and 2D passivation suppresses nonradiative recombination. Cyclohexylmethylammonium iodide treatment shows superior performance compared to phenylethylammonium iodide due to stronger chloride binding energy. This work provides insights into the importance of chloride fixation for enhancing photovoltaic performance.
Article
Chemistry, Multidisciplinary
Peiquan Song, Enlong Hou, Yuming Liang, Jiefeng Luo, Liqiang Xie, Jianhang Qiu, Chengbo Tian, Zhanhua Wei
Summary: By pre-burying multi-fluorine-containing fullerene derivatives at the SnO2/perovskite heterointerface, the perovskite films' grain orientation and interface defects can be improved, leading to enhanced device performance.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Lina Shen, Peiquan Song, Lingfang Zheng, Lipeng Wang, Xiaguang Zhang, Kaikai Liu, Yuming Liang, Wanjia Tian, Yujie Luo, Jianhang Qiu, Chengbo Tian, Liqiang Xie, Zhanhua Wei
Summary: Perovskite solar cells (PSCs) with over 25% power conversion efficiency have been achieved through efficient surface passivation. However, current post-treatment strategies can only repair the defects at the top interface. In this study, an ion-diffusion management strategy is proposed to simultaneously modulate the top interfaces, buried interfaces, and bulk interfaces of the perovskite film, achieving passivation of all interface defects. By using double interactive salts of octylammonium iodide (OAI) and guanidinium chloride (GACl) on the 3D perovskite surface, the diffusion of ions can be controlled, resulting in a dimensionally broadened 2D capping layer. This approach leads to the formation of n-inter-i-inter-p five-layer structured PSCs with a champion PCE of 25.43% (certified 24.4%), and improved operational stability of perovskite solar cells.
ADVANCED MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Kan Cui, Yang Zhao, Zhi Yu, Miaosen Yu, Xiaoqi Li, Xingwei Huang, Jianhang Qiu, Liangting Sun, Hongwei Zhao, Ning Gao, Kaiping Tai, Chang Liu
Summary: In this study, a novel flexible free-standing network-structured hybrid material composed of amorphous carbon encapsulated nickel nanocrystals anchored on a single-wall carbon nanotube scaffold is reported. This material exhibits excellent radiation tolerance and thermal stability. The nano-scale Ni-SWCNT network with abundant interfaces and grain boundaries provides effective sinks and fast transportation channels for defects, while the amorphous carbon layer and surface thermal grooves contribute to the enhanced thermal stability.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2023)
Article
Engineering, Electrical & Electronic
Ying Li, Yang Zhao, Jixiang Qiao, Song Jiang, Jianhang Qiu, Jun Tan, Lili Zhang, Zhigang Gai, Kaiping Tai, Chang Liu
ACS APPLIED ELECTRONIC MATERIALS
(2020)