DataVXACS Applied Energy MaterialsPaper
journal article·2021-08-23

Cation Engineering for Effective Defect Passivation to Improve Efficiency and Stability of FA0.5MA0.5PbI3Perovskite Solar Cells

Ying Yang, Jiaxue You, Jing Zhang, Hang Su, Xinyi Du, Yingjie Hu, Tingting Xu, Lili Gao, Shengzhong Frank Liu

ACS Applied Energy Materials· Volume 4· Issue 8
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Source abstract

Abstract

Large organic cations have been widely employed to passivate defects in perovskite solar cells (PSCs). In this research, we study how double ions influence PSC developments. Four additives, namely, BAI, BACl, PEAI, and PEACl, were introduced into the precursor solution during the hybrid PSC preparation, and it is found that they not only improve the crystallization of the perovskite films but also passivate the surface and grain boundary defects, leading to improved PSC performance. BACl is found to be the best among this group of additives, giving the highest solar cell efficiency and the best stability. This work provides insights and guidelines as to how amine additives influence perovskite film formation as well as device performance, which is badly needed for PSC advancement.
Source: openalex_inverted_index · Quality: baseline

Research context

Electronic materials

OpenAlex topics: Perovskite Materials and Applications · Conducting polymers and applications · Quantum Dots Synthesis And Properties

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education; Shaanxi Key Laboratory for Advanced Energy Devices; Shaanxi Engineering Lab for Advanced Energy Technology; Institute for Adv. Energy Mater.; School of Materials Science and Engineering, Shaanxi Normal University, Xi’an 710119, Shaanxi, China

School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi’an, Shaanxi 710129, China

Dalian National Laboratory for Clean Energy; iChEM, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, Liaoning, China

Funding

State Administration of Foreign Experts Affairs · Ministry of Education of the People's Republic of China · Ministry of Science and Technology of the People's Republic of China · China Postdoctoral Science Foundation · National Natural Science Foundation of China · DNL Cooperation Fund, Chinese Academy of Sciences

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