Liquid medium annealing for fabricating durable perovskite solar cells with improved reproducibility

Author:

Li Nengxu12ORCID,Niu Xiuxiu12ORCID,Li Liang2,Wang Hao13ORCID,Huang Zijian2,Zhang Yu2,Chen Yihua2ORCID,Zhang Xiao1,Zhu Cheng1ORCID,Zai Huachao2,Bai Yang1ORCID,Ma Sai1ORCID,Liu Huifen2,Liu Xixia2,Guo Zhenyu2,Liu Guilin4ORCID,Fan Rundong2,Chen Hong5,Wang Jianpu5ORCID,Lun Yingzhuo6ORCID,Wang Xueyun6ORCID,Hong Jiawang6ORCID,Xie Haipeng7,Jakob Devon S.8ORCID,Xu Xiaoji G.8ORCID,Chen Qi1ORCID,Zhou Huanping2ORCID

Affiliation:

1. Experimental Centre for Advanced Materials, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, P. R. China.

2. Beijing Key Laboratory for Theory and Technology of Advanced Battery Materials, Key Laboratory of Polymer Chemistry and Physics of Ministry of Education, BIC-ESAT, School of Materials Science and Engineering, Peking University, Beijing 100871, P. R. China.

3. Beijing Institute of Technology Chongqing Innovation Centre, Chongqing 401120, P. R. China.

4. School of Science, Jiangnan University, Wuxi, Jiangsu 214122, P. R. China.

5. Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), Nanjing 210009, P. R. China.

6. School of Aerospace Engineering, Beijing Institute of Technology, Beijing 100081, P. R. China.

7. Hunan Key Laboratory for Super-microstructure and Ultrafast Process, School of Physics and Electronics, Central South University, Changsha, Hunan 410012, P.R. China.

8. Department of Chemistry, Lehigh University, Bethlehem, PA 18015, USA.

Abstract

Evening out the heat The conversion of precursors into the active layer of perovskite solar cells normally occurs by heating the underlying substrate. Conversion tends to occur near the top of the film, where solvent is lost, and unwanted preheating of reactants occurs near the substrate before the reaction. Li et al . show that the use of a surrounding heat transfer oil (anisole) leads to more rapid and even heating, removes solvent, and avoids air and water contamination effects. The larger grains and more uniform films led a much greater retention of efficiency in moving from small-area to large-area devices. —PDS

Funder

Ministry of Science and Technology

National Natural Science Foundation of China

Delft University of Technology

China Postdoctoral Science Foundation

Natural Science Foundation of Beijing Municipality

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

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