Статья

A Fast Deposition‐Crystallization Procedure for Highly Efficient Lead Iodide Perovskite Thin‐Film Solar Cells

Manda XiaoSchool of Chemistry, Monash University, Victoria 3800 (Australia)Fuzhi HuangDepartment of Materials Engineering, Monash University, Victoria 3800 (Australia)Wenchao HuangDepartment of Materials Engineering, Monash University, Victoria 3800 (Australia)Yasmina DkhissiDepartment of Materials Engineering, Monash University, Victoria 3800 (Australia)Ye ZhuDepartment of Materials Engineering, Monash University, Victoria 3800 (Australia)Joanne EtheridgeDepartment of Materials Engineering, Monash University, Victoria 3800 (Australia)Angus Gray–WealeDepartment of Chemistry, University of Melbourne, Victoria 3010 (Australia)Udo BachCSIRO, Materials Science and Engineering, Clayton South, Victoria 3169 (Australia)Yi‐Bing ChengDepartment of Materials Engineering, Monash University, Victoria 3800 (Australia)Leone SpicciaLeone Spiccia, School of Chemistry, Monash University, Victoria 3800 (Australia)

2014en

ABI

Аннотация

Thin-film photovoltaics based on alkylammonium lead iodide perovskite light absorbers have recently emerged as a promising low-cost solar energy harvesting technology. To date, the perovskite layer in these efficient solar cells has generally been fabricated by either vapor deposition or a two-step sequential deposition process. We report that flat, uniform thin films of this material can be deposited by a one-step, solvent-induced, fast crystallization method involving spin-coating of a DMF solution of CH3NH3PbI3 followed immediately by exposure to chlorobenzene to induce crystallization. Analysis of the devices and films revealed that the perovskite films consist of large crystalline grains with sizes up to microns. Planar heterojunction solar cells constructed with these solution-processed thin films yielded an average power conversion efficiency of 13.9±0.7% and a steady state efficiency of 13% under standard AM 1.5 conditions.

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Идентификаторы

DOI: 10.1002/anie.201405334

Цитирования и источники

Цитирований: 6Использованных источников: 0

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