Article
Chemistry, Physical
Yao Zhang, Chunyan Li, Enbing Bi, Tao Wang, Peng Zhang, Xudong Yang, Han Chen
Summary: By constructing a low-dimensional halide/perovskite heterostructure and molecular engineering of the organic spacer, the photovoltaic performance of inverted perovskite solar cells (PSCs) has been significantly improved with high efficiency and stability.
ADVANCED ENERGY MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Tarak Nath Mandal, Jin Hyuck Heo, Sang Hyuk Im, Woo-Sik Kim
Summary: The researchers prepared a pure.delta-FAPbI(3) single crystal for highly efficient and long-term stable perovskite solar cells (PCS) using a method involving liquid phase reaction and solvent crystallization. Molecular recognition was used to exclude the incorporation of impurities into the crystal. The fabricated.alpha-FAPbI(3) inverted PSCs showed excellent power conversion efficiency (PCE) due to reduced trap-states, with the champion device achieving a high PCE of 23.48% under 1-Sun condition. Surface-treated devices with 3-(aminomethyl)pyridine exhibited a significantly improved PCE of 25.07%. Additionally, the unencapsulated device maintained 97.22% of its initial efficiency after 1,000 hours of continuous 1-Sun illumination at 85 degrees C in an N-2 atmosphere, demonstrating long-term thermal and photo stabilities of PSCs compared to the control device which maintained only 89.93%.
Review
Energy & Fuels
Yan Tang, Zhenkun Gu, Chunpeng Fu, Qian Xiao, Shasha Zhang, Yiqiang Zhang, Yanlin Song
Summary: This article comprehensively reviews the progress in FAPbI(3) films and achievements in high-efficiency and long-term stability PSCs. It evaluates strategies to improve film quality and device structure for enhanced stability and efficiency.
Article
Materials Science, Multidisciplinary
Shuo Zhang, Ruihan Wu, Chenkai Mu, Yanbo Wang, Liyuan Han, Yongzhen Wu, Wei-Hong Zhu
Summary: The alkyl linker-based self-assembled monolayer (SAM) has limitations in its hole-transporting capability and stability. In this study, a series of conjugated SAMs with enhanced photo and electrical stability were reported. The conjugated molecular structure not only improves charge transport but also stabilizes the electron-rich arylamines. An optimal conjugated SAM, in combination with a standard triple cation perovskite, achieved efficient inverted PSCs with high stability. The findings suggest that conjugated SAMs are promising for further advancement of inverted PSCs.
ACS MATERIALS LETTERS
(2022)
Article
Chemistry, Multidisciplinary
Yong Ryun Kim, Chang Mok Oh, Chang Jae Yoon, Ju-Hyeon Kim, Kiyoung Park, Kwanghee Lee, In-Wook Hwang, Heejoo Kim
Summary: By engineering additives onto the electron transport layer (ETL), highly stable and efficient cathode-buffer-layer-free inverted perovskite solar cells (I-PeSCs) have been achieved, showing simplified fabrication process, improved efficiency, good stability, and passivation of trap density, leading to enhanced device performance.
Article
Chemistry, Physical
Fei Wang, Kang Zhou, Xiao Liang, Xianfang Zhou, Dawei Duan, Chuangye Ge, Xintao Zhang, Yumeng Shi, Haoran Lin, Quanyao Zhu, Liang Li, Hanlin Hu, Hongyu Zhang
Summary: Ionic liquids (ILs) are used to manipulate crystallization kinetics, optimize morphology, and passivate defects in perovskite devices. This study introduces ILs with different anion sizes as additives for perovskite film formation. Small-sized anions effectively reduce defect density, suppress charge-carrier recombination, extend photoluminescence lifetime, and improve device performance.
Review
Multidisciplinary Sciences
Jinpeng Wu, Shun-Chang Liu, Zongbao Li, Shuo Wang, Ding-Jiang Xue, Yuan Lin, Jin-Song Hu
Summary: The article reviews the rapid increase in power conversion efficiencies of metal halide perovskite solar cells, yet commercialization still faces challenges, particularly in stability. It emphasizes the importance of understanding the sources of material stability and strain regulation strategies for improving stability.
NATIONAL SCIENCE REVIEW
(2021)
Article
Multidisciplinary Sciences
Qi Jiang, Jinhui Tong, Yeming Xian, Ross A. Kerner, Sean P. Dunfield, Chuanxiao Xiao, Rebecca A. Scheidt, Darius Kuciauskas, Xiaoming Wang, Matthew P. Hautzinger, Robert Tirawat, Matthew C. Beard, David P. Fenning, Joseph J. Berry, Bryon W. Larson, Yanfa Yan, Kai Zhu
Summary: In this study, a reactive surface engineering approach was used to enhance the performance of perovskite solar cells with an inverted structure. The resulting p-i-n solar cells showed a high power conversion efficiency of over 25% and remained stable after long-term operation under extreme conditions.
Article
Chemistry, Multidisciplinary
Tianfei Xu, Wanchun Xiang, Junjie Yang, Dominik J. J. Kubicki, Wolfgang Tress, Tao Chen, Zhimin Fang, Yali Liu, Shengzhong Liu
Summary: The performance of inverted inorganic perovskite solar cells (PSCs) is significantly improved by interfacial engineering of CsPbI3-xBrx films with 2-mercapto-1-methylimidazole (MMI), resulting in reduced surface trap density, better energy level alignment, higher open-circuit voltage, and improved stability.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Physical
Tongtong Li, Shuangjie Wang, Jiabao Yang, Xingyu Pu, Bingyu Gao, Ziwei He, Qi Cao, Jian Han, Xuanhua Li
Summary: In this study, the multifunctional additive PATMBF4 is employed to prepare CsFAMA perovskite solar cells, effectively reducing defects and improving charge transfer efficiency, resulting in a high photoelectric conversion efficiency of 21.35%.
Article
Chemistry, Multidisciplinary
Yulong Wang, Yufei Yang, Neng Li, Min Hu, Sonia R. Raga, Yang Jiang, Chao Wang, Xiao-Li Zhang, Monica Lira-Cantu, Fuzhi Huang, Yi-Bing Cheng, Jianfeng Lu
Summary: Improving the quality of large-area perovskite film using ionic liquid additives and a new bond formation has shown significant improvements in the power conversion efficiency of the devices, making them more stable for extended periods of time.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Xinyi Liu, Hong Wei Qiao, Mengjiong Chen, Bing Ge, Shuang Yang, Yu Hou, Hua Gui Yang
Summary: Potassium salt-modified nickel oxides as hole transport layers were found to improve the photovoltaic performance of inverted perovskite solar cells, achieving higher charge recombination impedance and reduced trap densities. The champion device with potassium iodide-modified NiOX film attained a PCE of 20.10% and an enhanced fill factor of 0.812, demonstrating potassium doping as an effective route for enhancing the performance of inverted planar PSCs.
MATERIALS CHEMISTRY FRONTIERS
(2021)
Article
Chemistry, Physical
Qi Cao, Yuke Li, Yixin Zhang, Junsong Zhao, Tong Wang, Bowen Yang, Xingyu Pu, Jiabao Yang, Hui Chen, Xingyuan Chen, Xiaoqiang Li, Shahnaz Ghasemi, Hadi Salari, Anders Hagfeldt, Xuanhua Li
Summary: In this study, a wide-bandgap n-type semiconductor B4PyPPM was introduced to modify the perovskite film via an anti-solvent method. This modification reduced trap state densities and inhibited nonradiative recombination, resulting in improved efficiency and stability of the perovskite film.
ADVANCED ENERGY MATERIALS
(2022)
Article
Multidisciplinary Sciences
Zhen Li, Bo Li, Xin Wu, Stephanie A. Sheppard, Shoufeng Zhang, Danpeng Gao, Nicholas J. Long, Zonglong Zhu
Summary: Functionalizing the interfaces of multication and halide perovskite solar cells with an organometallic compound, ferrocenyl-bis-thiophene-2-carboxylate (FcTc(2)), enhances their efficiency and stability. The resulting devices exhibit high performance and stability, as demonstrated by tests and continuous operation.
Article
Chemistry, Multidisciplinary
Hengkai Zhang, Zhiliang Chen, Minchao Qin, Zhiwei Ren, Kuan Liu, Jiaming Huang, Dong Shen, Zehan Wu, Yaokang Zhang, Jianhua Hao, Chun-sing Lee, Xinhui Lu, Zijian Zheng, Wei Yu, Gang Li
Summary: By introducing the in situ crosslinking-enabled strain-regulating crystallization (CSRC) method with trimethylolpropane triacrylate (TMTA), the tensile strain and grain size of perovskite solar cells (PSCs) based on alpha-Formamidinium lead triiodide (alpha-FAPbI(3)) were successfully regulated, leading to significantly enhanced performance. The CSRC approach not only improved power conversion efficiency (PCE), but also ensured outstanding device stability under both long-term storage and light soaking conditions.
ADVANCED MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Qin Yao, Yue-Min Xie, Yingzhi Zhou, Qifan Xue, Xin Xu, Yujia Gao, Tianqi Niu, Linghao Chu, Zhisheng Zhou, Francis R. Lin, Alex K. -Y. Jen, Tingting Shi, Hin-Lap Yip, Yong Cao
Summary: This study uses an ionic liquid, methylammonium acetate (MAAc), and bathocuproine (BCP) to modify wide-bandgap perovskite sub-cells and small-bandgap organic solar cells. MAAc effectively heals the defects in the perovskite film, improving the energy conversion efficiency, while BCP acts as a space layer to prevent direct contact between ZnO and the organic bulk-heterojunction, mitigating efficiency loss. The integration of these modified sub-cells enables the fabrication of monolithic n-i-p structured tandem solar cells with a maximum PCE of 22.43%.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Xin Wu, Danpeng Gao, Xianglang Sun, Shoufeng Zhang, Qi Wang, Bo Li, Zhen Li, Minchao Qin, Xiaofen Jiang, Chunlei Zhang, Zhuo Li, Xinhui Lu, Nan Li, Shuang Xiao, Xiaoyan Zhong, Shangfeng Yang, Zhong'an Li, Zonglong Zhu
Summary: In this study, a simple design strategy of polymer hole-transporting materials (HTMs) is reported, which can modulate the wettability and promote the anchoring by introducing pyridine units into the polyarylamine backbone, resulting in efficient and stable inverted perovskite solar cells (PVSCs).
ADVANCED MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Danpeng Gao, Bo Li, Zhen Li, Xin Wu, Shoufeng Zhang, Dan Zhao, Xiaofen Jiang, Chunlei Zhang, Yan Wang, Zhenjiang Li, Nan Li, Shuang Xiao, Wallace C. H. Choy, Alex K. -Y. Jen, Shangfeng Yang, Zonglong Zhu
Summary: A highly efficient and stable flexible perovskite solar cell (PSC) is reported by modifying the interface between perovskite and hole transport layer using pentylammonium acetate (PenAAc) molecule. The PenAAc-modified PSC achieves a record power conversion efficiency (PCE) of 23.68% and shows excellent stability under mechanical bending.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
XinYu Yu, Danpeng Gao, Zhen Li, Xianglang Sun, Bo Li, Zonglong Zhu, Zhong'an Li
Summary: The commercialization of perovskite solar cells (PVSCs) requires the development of green-solvent processable dopant-free hole transporting materials (HTMs). A simple and effective design strategy of constructing star-shaped D-A-D structure has been proposed. The resulting HTMs (BTP1-2) can be processed by green solvent 2-methylanisole (2MA) and show high hole mobility and defect passivation effects, achieving an impressive efficiency of 24.34% for 2MA-processed BTP1 based inverted PVSCs, the highest value for green-solvent processable HTMs so far.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Physical
Rui Sun, Tao Wang, Qunping Fan, Mingjian Wu, Xinrong Yang, Xiaohei Wu, Yue Yu, Xinxin Xia, Fengzhe Cui, Ji Wan, Xinhui Lu, Xiaotao Hao, Alex K. -Y. Jen, Erdmann Spiecker, Jie Min
Summary: While polymer/polymer blend systems still have lower power conversion efficiencies compared to small-molecule-acceptor-based systems, the use of a ternary blending strategy holds promise in achieving a desired nanoscale blend morphology to bridge the efficiency-stability gap in all-polymer solar cells. In this study, a narrow-band-gap chlorinated polymer acceptor (PY-2Cl) was incorporated into the PM6:PY-1S1Se host blend, resulting in extended absorption spectra, improved molecular packing, solidified blend microstructure, and reduced non-radiative recombination. The resulting ternary blend achieved a PCE of 18.2% (certified value 17.8%), the highest reported for all-PSCs. Furthermore, the ternary blend demonstrated lower Urbach energy and better operational stability compared to corresponding binary systems. This work paves the way for enhancing the development of high-performance all-polymer systems through molecular design and ternary strategies.
Article
Chemistry, Multidisciplinary
Baobing Fan, Wenkai Zhong, Wei Gao, Huiting Fu, Francis R. Lin, Reese W. -Y. Wong, Ming Liu, Chenhui Zhu, Cheng Wang, Hin-Lap Yip, Feng Liu, Alex K. -Y. Jen
Summary: Sequentially deposited organic solar cells (SD-OSCs) have received great attention due to their ability to achieve a more favorable morphology. However, the processing of SD-OSCs is challenging in preventing the penetration of small-molecule acceptors into the polymer donor layer. In this study, solid additives with varied electrostatic potential distributions and steric hinderance are introduced to investigate their effect on vertical component distribution.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Feng Qi, Yanxun Li, Rui Zhang, Francis R. R. Lin, Kaikai Liu, Qunping Fan, Alex K. -Y. Jen
Summary: Organic solar cells (OSCs) have made significant advancements with the development of new photovoltaic materials. However, their long-term stability remains a challenge. To address this, a dimer acceptor with a flexible linker was developed to stabilize the morphology of the active layer. The resulting device showed improved power conversion efficiency and excellent thermal stability, as well as maintaining high mechanical durability after repetitive bending.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Multidisciplinary Sciences
Han Yu, Yan Wang, Xinhui Zou, Junli Yin, Xiaoyu Shi, Yuhao Li, Heng Zhao, Lingyuan Wang, Ho Ming Ng, Bosen Zou, Xinhui Lu, Kam Sing Wong, Wei Ma, Zonglong Zhu, He Yan, Shangshang Chen
Summary: In this study, a poly(fullerene-alt-xylene) acceptor (PFBO-C12) was used as a guest component in ternary organic solar cells to achieve a significant increase in efficiency from 16.9% to 18.0%. The results showed that PFBO-C12 facilitated hole transfer and suppressed charge recombination while maintaining a favorable morphology with high crystallinity and smaller domain size. Additionally, the introduction of PFBO-C12 reduced voltage loss and improved the light stability and mechanical durability of all-polymer solar cells.
NATURE COMMUNICATIONS
(2023)
Article
Energy & Fuels
Xiaopeng Zheng, Zhen Li, Yi Zhang, Min Chen, Tuo Liu, Chuanxiao Xiao, Danpeng Gao, Jay B. Patel, Darius Kuciauskas, Artiom Magomedov, Rebecca A. Scheidt, Xiaoming Wang, Steven P. Harvey, Zhenghong Dai, Chunlei Zhang, Daniel Morales, Henry Pruett, Brian M. Wieliczka, Ahmad R. Kirmani, Nitin P. Padture, Kenneth R. Graham, Yanfa Yan, Mohammad Khaja Nazeeruddin, Michael D. McGehee, Zonglong Zhu, Joseph M. Luther
Summary: To improve the manufacturability of perovskite solar cells, researchers have developed a one-step solution-coating procedure that simplifies the fabrication process and addresses wettability issues.
Review
Chemistry, Physical
Xin Wu, Dong Zhang, Xue Wang, Xiaofen Jiang, Baoze Liu, Bo Li, Zhen Li, Danpeng Gao, Chunlei Zhang, Yan Wang, Zonglong Zhu
Summary: With the improvement in power conversion efficiency and lifetime of perovskite solar cells (PVSCs), the environmental concerns regarding materials, device processing, operation, and recycling have become crucial for their commercialization. The development of eco-friendly PVSCs through lead-free perovskite materials, non-toxic solvents, and effective lead-adsorbing materials has gained significant attention in the past few years. This comprehensive review discusses the recent progress in eco-friendly PVSCs, including eco-friendly materials, device processing and operation, and perovskite recycling, while providing insights into further material innovation and device optimization for future development.
