Interfacial Engineering at the 2D/3D Heterojunction for High-Performance Perovskite Solar Cells.

Autor: Niu T; 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, School of Materials Science and Engineering , Shaanxi Normal University , Xi'an 710119 , China., Lu J; 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, School of Materials Science and Engineering , Shaanxi Normal University , Xi'an 710119 , China., Jia X; School of Materials Science and Engineering, Jiangsu Collaborative Innovation Center of Photovoltaic Science and Engineering, Jiangsu Province Cultivation Base for State Key Laboratory of Photovoltaic Science and Technology , Changzhou University , Changzhou 213164 , Jiangsu , China., Xu Z; 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, School of Materials Science and Engineering , Shaanxi Normal University , Xi'an 710119 , China., Tang MC; KAUST Solar Center (KSC) and Physical Science and Engineering Division (PSE) , King Abdullah University of Science and Technology (KAUST) , Thuwal 23955-6900 , Saudi Arabia., Barrit D; KAUST Solar Center (KSC) and Physical Science and Engineering Division (PSE) , King Abdullah University of Science and Technology (KAUST) , Thuwal 23955-6900 , Saudi Arabia., Yuan N; School of Materials Science and Engineering, Jiangsu Collaborative Innovation Center of Photovoltaic Science and Engineering, Jiangsu Province Cultivation Base for State Key Laboratory of Photovoltaic Science and Technology , Changzhou University , Changzhou 213164 , Jiangsu , China., Ding J; School of Materials Science and Engineering, Jiangsu Collaborative Innovation Center of Photovoltaic Science and Engineering, Jiangsu Province Cultivation Base for State Key Laboratory of Photovoltaic Science and Technology , Changzhou University , Changzhou 213164 , Jiangsu , China., Zhang X; 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, School of Materials Science and Engineering , Shaanxi Normal University , Xi'an 710119 , China.; Dalian National Laboratory for Clean Energy, iChEM , Dalian Institute of Chemical Physics, Chinese Academy of Sciences , Dalian 116023 , China., Fan Y; 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, School of Materials Science and Engineering , Shaanxi Normal University , Xi'an 710119 , China., Luo T; 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, School of Materials Science and Engineering , Shaanxi Normal University , Xi'an 710119 , China., Zhang Y; 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, School of Materials Science and Engineering , Shaanxi Normal University , Xi'an 710119 , China., Smilgies DM; Cornell High Energy Synchrotron Source , Cornell University , Ithaca , New York 14850 , United States., Liu Z; 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, School of Materials Science and Engineering , Shaanxi Normal University , Xi'an 710119 , China., Amassian A; KAUST Solar Center (KSC) and Physical Science and Engineering Division (PSE) , King Abdullah University of Science and Technology (KAUST) , Thuwal 23955-6900 , Saudi Arabia.; Department of Materials Science and Engineering , North Carolina State University , Raleigh , North Carolina 27695 , United States., Jin S; Dalian National Laboratory for Clean Energy, iChEM , Dalian Institute of Chemical Physics, Chinese Academy of Sciences , Dalian 116023 , China., Zhao K; 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, School of Materials Science and Engineering , Shaanxi Normal University , Xi'an 710119 , China., Liu S; 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, School of Materials Science and Engineering , Shaanxi Normal University , Xi'an 710119 , China.; Dalian National Laboratory for Clean Energy, iChEM , Dalian Institute of Chemical Physics, Chinese Academy of Sciences , Dalian 116023 , China.
Jazyk: angličtina
Zdroj: Nano letters [Nano Lett] 2019 Oct 09; Vol. 19 (10), pp. 7181-7190. Date of Electronic Publication: 2019 Sep 11.
DOI: 10.1021/acs.nanolett.9b02781
Abstrakt: Perovskite solar cells based on two-dimensional/three-dimensional (2D/3D) hierarchical structure have attracted significant attention in recent years due to their promising photovoltaic performance and stability. However, obtaining a detailed understanding of interfacial mechanism at the 2D/3D heterojunction, for example, the ligand-chemistry-dependent nature of the 2D/3D heterojunction and its influence on charge collection and the final photovoltaic outcome, is not yet fully developed. Here we demonstrate the underlying 3D phase templates growth of quantum wells (QWs) within a 2D capping layer, which is further influenced by the fluorination of spacers and compositional engineering in terms of thickness distribution and orientation. Better QW alignment and faster dynamics of charge transfer at the 2D/3D heterojunction result in higher charge mobility and lower charge recombination loss, largely explaining the significant improvements in charge collection and open-circuit voltage ( V OC ) in complete solar cells. As a result, 2D/3D solar cells with a power-conversion efficiency of 21.15% were achieved, significantly higher than the 3D counterpart (19.02%). This work provides key missing information on how interfacial engineering influences the desirable electronic properties of the 2D/3D hierarchical films and device performance via ligand chemistry and compositional engineering in the QW layer.
Databáze: MEDLINE
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