Review
Chemistry, Multidisciplinary
Linfang Yan, Junjie Ma, Pengwei Li, Shuangquan Zang, Liyuan Han, Yiqiang Zhang, Yanlin Song
Summary: This article summarizes the recent advances in carrier behavior of 2D Ruddlesden-Popper perovskite solar cells (PSCs) and provides guidelines and strategies for enhancing carrier transport.
ADVANCED MATERIALS
(2022)
Article
Chemistry, Physical
Aidan H. Coffey, Seok Joo Yang, Martin Gomez, Blake P. Finkenauer, Tanguy Terlier, Chenhui Zhu, Letian Dou
Summary: Quasi-2D hybrid halide perovskites show improved stability and tunability compared to 3D perovskites. By incorporating a bulky bi-thiophene 2T ligand, a solvent system is developed to create strongly vertically-aligned quasi-2D perovskite films with enhanced stability and efficiency. These films achieve a high power conversion efficiency of 13.3% in solar cells.
ADVANCED ENERGY MATERIALS
(2023)
Article
Chemistry, Inorganic & Nuclear
Meng Wang, Jiayu You, Cunyun Xu, Jun Dong, Chuanyao Luo, Qunliang Song, Sam Zhang
Summary: The article introduces a simple method to improve the performance of Q-2D perovskite solar cells by adding 3D perovskite powder to the precursor solution. This enables the formation of a uniform and closely connected heterostructure with distributed large-n phases, thereby promoting charge transfer.
DALTON TRANSACTIONS
(2022)
Review
Chemistry, Physical
Alessandro Caiazzo, Rene A. J. Janssen
Summary: This review discusses the toolbox and methods used for high efficiency solar cells based on Ruddlesden-Popper perovskites.
ADVANCED ENERGY MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Albertus A. Sutanto, Pietro Caprioglio, Nikita Drigo, Yvonne J. Hofstetter, Ines Garcia-Benito, Valentin I. E. Queloz, Dieter Neher, Mohammad Khaja Nazeeruddin, Martin Stolterfoht, Yana Vaynzof, Giulia Grancini
Summary: The study emphasizes the importance of interface engineering and design in optimizing multilayer device stacks, particularly in addressing interface issues in 2D/3D perovskite solar cells. It proposes methods to enhance device efficiency and stability by understanding the interface energetics and forming a p-n junction.
Article
Chemistry, Multidisciplinary
Tong Yue, Kang Li, Xing Li, Nafees Ahmad, Hui Kang, Qian Cheng, Yingyu Zhang, Yaochang Yue, Yanan Jing, Boxin Wang, Shilin Li, Jieyi Chen, Gaosheng Huang, Yanxun Li, Zihao Fu, Tong Wu, Saud Uz Zafar, Lina Zhu, Huiqiong Zhou, Yuan Zhang
Summary: Quasi-two-dimensional perovskites with excellent stability are promising for commercialization of perovskite solar cells. However, the presence of multiple n-value species complicates the crystallization process, negatively impacting the photovoltaic performance. By using acetic acid as a co-solvent, high-quality 2D perovskite films can be prepared. The acetic acid modifies the prenucleation and grain growth kinetics, leading to the formation of favorable cluster aggregates and improved crystal growth. The resulting devices achieve a photovoltaic efficiency of 18.55% and exhibit excellent thermal stability.
Article
Chemistry, Multidisciplinary
Boxin Wang, Qian Cheng, Gaosheng Huang, Yaochang Yue, Weichuan Zhang, Xing Li, Yanxun Li, Wenna Du, Xinfeng Liu, Hong Zhang, Yuan Zhang, Huiqiong Zhou
Summary: The effects of sulfonium cations on the evolution of intermediates and photovoltaic properties of 2D RP perovskites were investigated. The introduction of sulfonium cations led to preferred intermediate transformation and improved film quality of perovskites, resulting in enhanced efficiency and stability of solar cells.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Wenjie Luo, Qingqing Qiu, Rui Liu, Yue Yu, Qiaofeng Wu, Jin Peng, Xudong Cai, Jian Yu, Xin Chen, Hua Yu
Summary: A non-preheating film-casting method is proposed to achieve a highly uniform and phase controllable quasi-2D perovskite film. The resulting film shows good light utilization efficiency, power conversion efficiency, and stability in semitransparent solar cells.
CHEMICAL COMMUNICATIONS
(2023)
Article
Nanoscience & Nanotechnology
Haoliang Wang, Liangliang Deng, Yiyi Pan, Xin Zhang, Xiaoguo Li, Yanyan Wang, Yaxin Wang, Yiting Liu, Xiaofei Yue, Zejiao Shi, Chongyuan Li, Kai Liu, Tianxiang Hu, Zhenye Liang, Chen Tian, Jiao Wang, Anran Yu, Xiaolei Zhang, Yingguo Yang, Yiqiang Zhan
Summary: Preferred crystalline orientation at the surface is crucial for vertical carrier transport and interface carrier extraction in quasi-2D organic-inorganic halide perovskites, leading to improved device efficiency and stability in photovoltaic applications. A surface polishing method using a green solvent, 2,2,2-trifluoroethanol, effectively removes randomly oriented phases and trap sites on the surface, revealing compact vertical-oriented phases with less defectiveness and better smoothness. This greatly facilitates carrier transport and interfacial charge extraction, resulting in devices with boosted efficiency of 18.38% and high open-circuit voltage of 1.21 V, as well as improved storage and operational stability.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Energy & Fuels
Weifei Fu, Ting Zhao, Hongbin Liu, Francis Lin, Lijian Zuo, Xiaosong Li, Alex K. -Y. Jen
Summary: A strategy of replacing the insulating spacer with conducting spacer is proposed, successfully converting the spacer from a charge-transporting barrier to a charge-transporting bridge. By designing new organic spacer cations, highly efficient and stable quasi-2D perovskite solar cells have been achieved.
Article
Engineering, Environmental
Zhongzhong Jia, Hua Zhong, Jinliang Shen, Zhaohui Yu, Junlei Tao, Song Yin, Xudong Liu, Shi Chen, Shaopeng Yang, Weiguang Kong
Summary: In this paper, a novel recipe of C60 precursor solutions (XP-C-60) was proposed to inhibit the aggregation of C-60 and promote fast solvent drying. High-quality C-60 films could be readily fabricated at room temperatures, significantly improving the efficiency and stability of the perovskite solar cells (PSCs).
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Multidisciplinary
Xiaomei Lian, Lijian Zuo, Bowen Chen, Biao Li, Haotian Wu, Shiqi Shan, Gang Wu, Xuegong Yu, Qi Chen, Liwei Chen, Deren Yang, David Cahen, Hongzheng Chen
Summary: By illuminating, favorable ion accumulation can be constructed to significantly improve the performance of quasi-2D perovskite solar cells.
ENERGY & ENVIRONMENTAL SCIENCE
(2022)
Article
Energy & Fuels
Hongtao Lai, Zhiyuan Xu, Zhihui Shao, Bing Cui, Binqiang Tian, Huanhuan Wang, Qiang Fu
Summary: Based on systematic study of different substituted spacer cations, it is found that the spacer cations mainly affect the crystal growth and orientation of quasi-2D perovskite films. By rational regulation of organic spacer cations, the crystallinity and crystal orientation of perovskite films can be improved, leading to enhanced power conversion efficiency of solar cells.
Article
Chemistry, Multidisciplinary
Danni Yu, Qi Wei, Hansheng Li, Junhan Xie, Xianyuan Jiang, Ting Pan, Hao Wang, Mengling Pan, Wenjia Zhou, Weimin Liu, Philip C. Y. Chow, Zhijun Ning
Summary: The combination of comprehensive surface passivation and effective interface carrier transfer plays a critical role in high-performance perovskite solar cells. A new molecule, 2-thiopheneethylamine thiocyanate (TEASCN), is synthesized to construct a bilayer quasi-2D structure on a tin-lead mixed perovskite surface. This bilayer structure passivates the perovskite surface and ensures effective carrier transfer, resulting in improved open-circuit voltage and certified efficiency.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Materials Science, Multidisciplinary
Xuanling Liu, Meiqian Tai, Jingkun Gu, Ziyi Wu, Han Zhong, Xuanyu Wang, Zhiping Wang, Hong Lin
Summary: This study reports an effective approach to tuning the crystal orientation of quasi-2D cesium lead halide perovskite films. By adjusting the precursor solution composition, vertically-aligned films with enhanced photocurrent and phase purity were achieved. The optimized solar cell devices showed significantly improved efficiency and stability.
JOURNAL OF MATERIALS CHEMISTRY C
(2022)