journal article·2018-01-12

Congeneric Incorporation of CsPbBr3 Nanocrystals in a Hybrid Perovskite Heterojunction for Photovoltaic Efficiency Enhancement

Huachao Zai, Cheng Zhu, Haipeng Xie, Yizhou Zhao, Congbo Shi, Zhenxin Chen, Xiaoxing Ke, Manling Sui, Changfeng Chen, Jinsong Hu, Qingshan Zhang, Yongli Gao, Huanping Zhou, Yujing Li, Qi Chen

ACS Energy Letters· Volume 3· Issue 1
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Abstract

Organic–inorganic hybrid perovskite materials have had remarkable success in photovoltaics due to their superior optoelectronic properties and compositional abundance. Most advances focus on the improvement of the heterojunction, in which nonperovskite materials are employed at the pertaining interfaces. Herein we demonstrate the modification of perovskite absorber by incorporation of CsPbBr3 nanocrystals, which is congeneric to the absorber in terms of crystal structure and stoichiometry. It led to significant enhancement in photovoltaic performance in the corresponding devices, which was mainly attributed to the improved carrier dynamics over the resultant heterojunction. Therefore, a different strategy is suggested for further improvement of the perovskite heterojunction by using congeneric materials.
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Research context

OpenAlex topics: Perovskite Materials and Applications · Solid-state spectroscopy and crystallography · Conducting polymers and applications

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

Affiliations

School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, China

Department of Materials Science and Engineering, College of Science, China University of Petroleum, Beijing 102249, China

Hunan Key Laboratory for Super-microstructure and Ultrafast Process, School of Physics and Electronics, Central South University, Changsha 410083, China

Institute of Microstructure and Properties of Advanced Materials, Beijing University of Technology, Beijing 100124, China

Beijing National Laboratory for Molecular Sciences, Key Laboratory of Molecular Nanostructure and Nanotechnology, Institute of Chemistry, Chinese Academy of Science, Beijing 100190, China

Department of Physics and Astronomy, University of Rochester, Rochester, New York 14627, United States

Department of Materials Science and Engineering, College of Engineering, Peking University, Beijing 100871, China

Funding

Ministry of Science and Technology of the People's Republic of China · National Natural Science Foundation of China · Central Committee of the Communist Party of China

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