Combustion Synthesized Zinc Oxide Electron‐Transport Layers for Efficient and Stable Perovskite Solar Cells

Zheng, Ding; Wang, Gang; Huang, Wei; Wang, Binghao; Ke, Weijun; Logsdon, Jenna Leigh; Wang, Hanyu; Wang, Zhi; Zhu, Weigang; Yu, Junsheng; Wasielewski, Michael R.; Kanatzidis, Mercouri G.; Marks, Tobin J.; Facchetti, Antonio

doi:10.1002/adfm.201900265

Title: Combustion Synthesized Zinc Oxide Electron‐Transport Layers for Efficient and Stable Perovskite Solar Cells

Journal Article · Mon Feb 25 00:00:00 EST 2019 · Advanced Functional Materials

DOI:https://doi.org/10.1002/adfm.201900265· OSTI ID:1496654

^[1]; Wang, Gang ^[2]; Huang, Wei ^[2]; Wang, Binghao ^[2]; Ke, Weijun ^[2]; Logsdon, Jenna Leigh ^[2]; Wang, Hanyu ^[3]; Wang, Zhi ^[2]; Zhu, Weigang ^[2]; Yu, Junsheng ^[3];

^[2];

^[2]

Department of Chemistry the Center for Light Energy Activated Processes, and the Materials Research Center Northwestern University 2145 Sheridan Road Evanston IL 60208 USA, State Key Laboratory of Electronic Thin Films and Integrated Devices School of Optoelectronic Information University of Electronic Science and Technology of China (UESTC) Chengdu 610054 China
Department of Chemistry the Center for Light Energy Activated Processes, and the Materials Research Center Northwestern University 2145 Sheridan Road Evanston IL 60208 USA
State Key Laboratory of Electronic Thin Films and Integrated Devices School of Optoelectronic Information University of Electronic Science and Technology of China (UESTC) Chengdu 610054 China

Abstract Perovskite solar cells (PSCs) have advanced rapidly with power conversion efficiencies (PCEs) now exceeding 22%. Due to the long diffusion lengths of charge carriers in the photoactive layer, a PSC device architecture comprising an electron‐ transporting layer (ETL) is essential to optimize charge flow and collection for maximum performance. Here, a novel approach is reported to low temperature, solution‐processed ZnO ETLs for PSCs using combustion synthesis. Due to the intrinsic passivation effects, high crystallinity, matched energy levels, ideal surface topography, and good chemical compatibility with the perovskite layer, this combustion‐derived ZnO enables PCEs approaching 17–20% for three types of perovskite materials systems with no need for ETL doping or surface functionalization.

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Sponsoring Organization:: USDOE

Grant/Contract Number:: DE‐SC0001059

OSTI ID:: 1496654

Journal Information:: Advanced Functional Materials, Journal Name: Advanced Functional Materials Vol. 29 Journal Issue: 16; ISSN 1616-301X

Publisher:: Wiley Blackwell (John Wiley & Sons)Copyright Statement

Country of Publication:: Germany

Language:: English

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