Article
Chemistry, Physical
Qiang Lou, Yufang Han, Chang Liu, Kanghui Zheng, Jinsheng Zhang, Xia Chen, Qing Du, Chong Chen, Ziyi Ge
Summary: This work presents a new type of SnO2 passivator, which improves the efficiency of perovskite solar cells by optimizing molecular stacking to enhance interfacial characteristics. The impressive power conversion efficiency over 23% achieved with this new passivator is among the highest reported values for triple-cation perovskite systems to date.
ADVANCED ENERGY MATERIALS
(2021)
Article
Chemistry, Physical
Kai Zhang, Xinyu Tan, Peng Xiang, Bowen Li, Ji Li, Yanqi Ren, Ying Zhu, Yiming Liu, Wensheng Yan, Xiaobo Chen, Hongwei Han
Summary: By adjusting the refractive index of SnO2 with D-arginine monohydrochloride and introducing extra amino groups, carboxyl groups, and chloride ions to passivate interface defects, a significant improvement in the visible light transmittance of SnO2/ITO electrodes was achieved, leading to improved performance of perovskite solar cells.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Engineering, Environmental
Wenxiao Zhang, Xiaodong Li, Xiuxiu Feng, Xiaoyan Zhao, Junfeng Fang
Summary: By using ligand-biphenyl-3,3',5,5'-tetracarboxylic acid butyl amine (BPTC-BN) to passivate defects at the SnO2/perovskite interface, the size and quality of perovskite grains could be improved, leading to enhanced performance of planar PSCs. This interface passivation strategy not only increases the efficiency and open voltage of the devices, but also substantially improves their operational stability.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Energy & Fuels
Qian Cheng, Haoran Xia, Xing Li, Boxin Wang, Yanxun Li, Xuning Zhang, Hong Zhang, Yuan Zhang, Huiqiong Zhou
Summary: The interface modification based on organic spacer cations has been shown to enhance the performance of 3D perovskite solar cells by promoting charge transport and extraction while suppressing charge trapping and recombination. By utilizing the optimal spacer cation phenylpropylammonium iodide (PPAI), the 3D/2D perovskite devices achieved a high power conversion efficiency of 22.57% with improved stability under external stresses.
Article
Chemistry, Multidisciplinary
Bo Li, Zhen Li, Danpeng Gao, Xin Wu, Xintong Li, Chunlei Zhang, Shuai Li, Jianqiu Gong, Dong Zhang, Xiangfan Xie, Shuang Xiao, Haipeng Lu, Mingjie Li, Zonglong Zhu
Summary: By designing long-chain alkylamines as crystallization buffer molecules, the residual strain in tin perovskite films was released, thus improving the photovoltaic performance and stability of lead-stabilized tin perovskite solar cells (TPSCs).
MATERIALS CHEMISTRY FRONTIERS
(2023)
Article
Chemistry, Physical
Yang Yang, Qing Chang, Yuyao Yang, Yuhui Jiang, Zhiyuan Dai, Xiaofeng Huang, Jiangwei Huo, Pengfei Guo, Hui Shen, Zhe Liu, Ruihao Chen, Hongqiang Wang
Summary: Wide-band gap inverted perovskite solar cells are important for tandem photovoltaics, but their poor efficiency and stability hinder their industrialization. This study developed an interface modification strategy using a multifunctional molecule to stabilize the perovskite surface. By passivating interface defects and suppressing halide phase separation, a record efficiency of 21.82% was achieved. The unsealed cells also showed high light and storage stability. This multifunctional defect passivation strategy provides an important avenue for high-performance perovskite top cells.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Chemistry, Multidisciplinary
Ching Chang Lin, Takurou N. Murakami, Masayuki Chikamatsu, Takeru Bessho, Miwako Furue, Hiroshi Segawa
Summary: Applying sodium chloride modification on tin oxide significantly enhanced the performance of perovskite solar cells, with a considerable improvement in power conversion efficiency due to the notable enhancement of the fill factor.
Review
Chemistry, Multidisciplinary
Qian Zhou, Baibai Liu, Xuxia Shai, Yuelong Li, Peng He, Hua Yu, Cong Chen, Zong-Xiang Xu, Dong Wei, Jiangzhao Chen
Summary: 2D/3D perovskite heterojunctions show promise in improving the efficiency and stability of perovskite solar cells (PSCs). However, challenges still exist in developing high-quality 2D/3D heterojunctions, such as controlling the perovskite phase and poor performance in inverted devices, limiting their commercialization. This paper summarizes the latest research progress and critical factors in modulating PSCs with 2D/3D heterojunctions, highlighting the advantages of constructing these heterojunctions and discussing the problems and solutions of using low-dimensional perovskites as passivation layers. The prospects of utilizing 2D/3D perovskite heterojunctions in passivation strategies to further improve the photovoltaic performance of PSCs in the future are also presented.
CHEMICAL COMMUNICATIONS
(2023)
Article
Energy & Fuels
Yuying Yao, Jing Zhang, Hang Su, Yong Li, Nan Li, Ting Nie, Lidan Liu, Xiaodong Ren, Ningyi Yuan, Jianning Ding, Shengzhong (Frank) Liu
Summary: Perovskite solar cells have high efficiency but low stability due to moisture permeation from grain boundaries and defects. A passivation agent called 3,4,5,6-tetrafluorophthalicacid (TFPA) is designed to improve both efficiency and stability. TFPA is found to distribute along grain boundaries, reducing film roughness and facilitating hole transporting. The device with TFPA modification shows outstanding efficiency and stability, with a champion efficiency of 23.70% and maintaining 90% of initial efficiency after 5200 hours.
Article
Chemistry, Multidisciplinary
Xuejie Zhu, Minyong Du, Jiangshan Feng, Hui Wang, Zhuo Xu, Likun Wang, Shengnan Zuo, Chenyu Wang, Ziyu Wang, Cong Zhang, Xiaodong Ren, Shashank Priya, Dong Yang, Shengzhong (Frank) Liu
Summary: In this study, DMIMPF6 ionic liquid was used to passivate surface defects of perovskite, resulting in increased solar cell efficiency and enhanced long-term stability of the device.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Physical
Jianxing Xia, Yi Zhang, Chuanxiao Xiao, Keith Gregory Brooks, Min Chen, Junsheng Luo, Hua Yang, Nadja Isabelle Desiree Klipfel, Jihua Zou, Yu Shi, Xiaojun Yao, Jiangzhao Chen, Joseph M. Luther, Hongzhen Lin, Abdullah M. Asiri, Chunyang Jia, Mohammad Khaja Nazeeruddin
Summary: This study reports a new dopant, DIC-PBA, as an alternative to Li-TFSI/t-BP, which improves the stability and efficiency of perovskite solar cells. Experimental results show that DIC-PBA can effectively dope HTMs and the perovskite surface, improving interfacial charge transport and thus enhancing the stability and efficiency of the cells.
Article
Materials Science, Multidisciplinary
Chengbo Wang, Yuting Zhang, Feidan Gu, Ziran Zhao, Haisheng Li, Hong Jiang, Zuqiang Bian, Zhiwei Liu
Summary: The illumination stability and efficiency of Sn-based perovskites have been substantially improved by synergistically introducing phenylhydrazine cation and halogen anions, resulting in a device with a power conversion efficiency of 13.4% and excellent long-term durability. This method offers a universal approach for enhancing the performance of Sn-based perovskites.
Article
Chemistry, Physical
Xusheng Zhao, Jun Dong, Daofu Wu, Jiaer Zhou, Julin Feng, Yanqing Yao, Cun Yun Xu, Xiude Yang, Xiaosheng Tang, Qunliang Song
Summary: A simple interface treatment strategy using DETAPMP successfully passivated the SnO2/MAPbI(3-x)Cl(x) interface, leading to improved efficiency and long-term stability of perovskite solar cells.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Chemistry, Physical
Qiang Fu, Hang Liu, Xingchen Tang, Rui Wang, Mingqian Chen, Yongsheng Liu
Summary: The passivation of surface defects of perovskites using organic functional materials has been demonstrated to enhance the efficiency and stability of solar cells. Two solution-processable 2D conjugated polymers, 2DP-F and 2DP-O, were synthesized and found to successfully passivate defects and improve charge carrier extraction in perovskite solar cells.
ACS ENERGY LETTERS
(2022)
Article
Chemistry, Physical
Yue Yu, Rui Liu, Chang Liu, Xiao-Lei Shi, Hua Yu, Zhi-Gang Chen
Summary: The use of 4-fluoro-phenylethylammonium iodide (FPEAI) as a dual-functional agent promotes oriented crystallization and comprehensive passivation of wide-bandgap perovskite solar cells (WBG PSCs), resulting in enhanced photovoltaic performance and stability.
ADVANCED ENERGY MATERIALS
(2022)
Article
Energy & Fuels
Tongle Bu, Luis K. Ono, Jing Li, Jie Su, Guoqing Tong, Wei Zhang, Yuqiang Liu, Jiahao Zhang, Jingjing Chang, Said Kazaoui, Fuzhi Huang, Yi-Bing Cheng, Yabing Qi
Summary: By tailoring the composition of the precursor ink and adding additives in the co-solvent system, high-efficiency perovskite solar cells over large areas have been achieved.
Article
Chemistry, Multidisciplinary
Hanwen Zhu, Guoqing Tong, Junchun Li, Enze Xu, Xuyong Tao, Yuanyuan Sheng, Jianxin Tang, Yang Jiang
Summary: Enriched-bromine surface state is achieved through anion exchange with PbBr2 stock solution in Cd-doped perovskite quantum dots, leading to improved efficiency and stability of perovskite QLEDs.
ADVANCED MATERIALS
(2022)
Article
Multidisciplinary Sciences
Zhongzhou Yang, Ye Zhang, Araceli Stubbe-Espejel, Yumei Zhao, Mengping Liu, Jianjun Li, Yanping Zhao, Guoqing Tong, Na Liu, Le Qi, Andrew Hutchins, Songqing Lin, Yantao Li
Summary: This study explores the relationship between vaginal microbiota, personal risk factors, and HPV status conversion, and identifies a potential biomarker panel associated with HPV clearance.
Article
Chemistry, Physical
Heming Yang, Enze Xu, Chengyun Wu, Junchun Li, Boyan Liu, Feng Hong, Lanpeng Zhang, Yajing Chang, Yan Zhang, Guoqing Tong, Yang Jiang
Summary: The use of oxidized TiSe2 to prepare TiO2 can reduce trap defects in the oxide, improve energy level alignment, and enhance the performance of perovskite solar cells.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Chemistry, Physical
Chenfeng Ding, Yuan Liu, Luis K. Ono, Guoqing Tong, Congyang Zhang, Jiahao Zhang, Jinle Lan, Yunhua Yu, Bingbing Chen, Y. B. Qi
Summary: This study reports a cellulose-based composite gel electrolyte that stabilizes ion deposition and exhibits high ionic conductivity and wide electrochemical stability window in lithium metal batteries. Utilizing this electrolyte, stable plating/stripping process and high areal capacity were achieved in the designed lithium-ion battery.
ENERGY STORAGE MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Yishao Liu, Chenyu Gao, Ruxuan Zhou, Feng Hong, Guoqing Tong, Li Wang, Yang Jiang
Summary: The study develops a multicomponent hybrid material with mesoporous Fe2O3 nanospheres wrapped by heteroatom pre-intercalated Cl-terminated Ti3C2Tx MXene, which shows excellent sodium storage performance and long-cycle stability by reducing the Na ion diffusion barrier and alleviating the volume change of Fe2O3.
NEW JOURNAL OF CHEMISTRY
(2023)
Article
Nanoscience & Nanotechnology
Ruixuan Jiang, Yuchen Luan, Jing Li, Feng Ye, Shujie Zhang, Zhiwei Su, Chengkai Jin, Guoqing Tong, Jinhui Tong, Fuzhi Huang, Yi-Bing Cheng, Tongle Bu
Summary: Low-cost, high-efficiency perovskite solar cells (PSCs) have been successfully fabricated using a powder engineering technique, which involves blending low-purity PbI2 with formamidinium iodide to form high-quality FAPbI3 powders. The as-synthesized black powders based on the low-purity PbI2 exhibit a champion power conversion efficiency (PCE) of 23.9% and show excellent stability after storage without encapsulation.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Hao Lu, Guangliu Ran, Yuqiang Liu, Zengliang Pei, Wenxu Liu, Yahui Liu, Zheng Tang, Wenkai Zhang, Zhishan Bo
Summary: In this study, a ternary blend strategy was developed to solve the difficulty of film morphology modulation in the fabrication of high-performance green-solvent-processed organic solar cells (OSCs). By introducing the third component SM16, the ternary devices achieved an excellent power conversion efficiency (PCE) of 18.20%, which is much higher than the binary devices and among the highest for green-solvents-processed OSCs.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Physical
Xuyong Tao, Boyan Liu, Guoqing Tong, Hanwen Zhu, Junchun Li, Yuanyuan Sheng, Chengyun Wu, Yajing Chang, Yangqing Wu, Yang Jiang
Summary: Ligand exchange in combination with light illumination using N-acetyl-L-cysteine (NAC) as a ligand is devised to enhance the PLQY and stability of CsPbBr3 QDs. This strategy leads to reduced surface defects, nearly 100% PLQY, and remarkable stability in polar solvents.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Chemistry, Multidisciplinary
Chenfeng Ding, Mang Niu, Cathal Cassidy, Hyung-Been Kang, Luis K. Ono, Hengyuan Wang, Guoqing Tong, Congyang Zhang, Yuan Liu, Jiahao Zhang, Silvia Mariotti, Tianhao Wu, Yabing Qi
Summary: This study reports a heterogeneous catalytic mediator based on monodispersed titanium carbide sub-nanoclusters embedded in titanium dioxide nanobelts. The catalytic and anchoring effects of the resulting catalyst are achieved by the redistribution of localized electrons caused by the abundant built-in fields in heterointerfaces. The resulting sulfur cathodes exhibit an areal capacity of 5.6 mAh cm(-2) and excellent stability at 1 C under sulfur loading of 8.0 mg cm(-2), and the catalytic mechanism is further demonstrated via operando time-resolved Raman spectroscopy and theoretical analysis.
Article
Chemistry, Physical
Guoqing Tong, Jiahao Zhang, Tongle Bu, Luis K. Ono, Congyang Zhang, Yuqiang Liu, Chenfeng Ding, Tianhao Wu, Silvia Mariotti, Said Kazaoui, Yabing Qi
Summary: Hybrid chemical vapor deposition (HCVD) is used to fabricate perovskite solar cells/modules (PSCs/PSMs) with the introduction of a passivation layer and a solvent, resulting in improved efficiency and stability. The oxygen loss of SnO2 in the HCVD process is mitigated by potassium sulfamate (H2KNO3S) while the uncoordinated Pb2+ in the perovskite film is passivated. N-methylpyrrolidone (NMP) is used as a solvent to dissolve PbI2 and lower the energy barrier for perovskite nucleation. The use of perovskite seeds further enhances crystal growth and grain size. The resulting solar cells and mini-modules exhibit high power conversion efficiency (PCE) and stable output performance, with excellent operational stability.
ADVANCED ENERGY MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Junchun Li, Yuanyuan Sheng, Guoqing Tong, Hanwen Zhu, Xuyong Tao, Chengyun Wu, Yajing Chang, Zhaoyu Tang, Jingting Yang, Shaobo Zhang, Yang Jiang
Summary: In this study, a modified room-temperature anti-solvent precipitation method is developed to synthesize Sb3+-doped, In-based, lead-free halide perovskites with different emission colors. The resultant microplate phosphors demonstrate bright yellow, green, and deep-blue emissions. White light-emitting diodes (WLEDs) fabricated based on these phosphors achieve high-quality white light with high color rendering index (CRI). This research advances the development of lead-free halide perovskite phosphors synthesis and offers new possibilities for high CRI WLEDs fabrication.
ADVANCED OPTICAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Xinyue Cui, Hongxiang Li, Hao Lu, Yuqiang Liu, Guangliu Ran, Rui Liu, Huarui Zhang, Xueqing Ma, Dawei Li, Yi Lin, Jifa Yu, Wenkai Zhang, Lei Cai, Yahui Liu, Pei Cheng, Andong Zhang, Zaifei Ma, Guanghao Lu, Zhishan Bo
Summary: Solution processability is a unique property of organic semiconductors. Improving their stacking quality without sacrificing processability remains a challenge. In this study, engineered additives are used to promote the formation of ordered aggregation of conjugated molecules, achieving both ordered aggregation and processability, and improving the performance of organic photovoltaics.
SCIENCE CHINA-CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Dawei Li, Huarui Zhang, Xinyue Cui, Ya-Nan Chen, Nan Wei, Guangliu Ran, Hao Lu, Shenhua Chen, Wenkai Zhang, Cuihong Li, Yahui Liu, Yuqiang Liu, Zhishan Bo
Summary: Three nonfused ring electron acceptors were designed and synthesized with the concept of halogenation. By incorporating F or/and Cl atoms, the performance of these acceptors was improved, resulting in high-efficiency organic solar cells.
ADVANCED MATERIALS
(2023)