钙钛矿(结构)
材料科学
薄膜
结晶
碘化物
能量转换效率
化学工程
沉积(地质)
太阳能电池
光伏
氯苯
旋涂
图层(电子)
纳米技术
光电子学
光伏系统
无机化学
化学
有机化学
催化作用
沉积物
古生物学
生物
工程类
生态学
作者
Manda Xiao,Fuzhi Huang,Wenchao Huang,Yasmina Dkhissi,Ye Zhu,Joanne Etheridge,Angus Gray–Weale,Udo Bach,Yi‐Bing Cheng,Leone Spiccia
标识
DOI:10.1002/ange.201405334
摘要
Abstract 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 CH 3 NH 3 PbI 3 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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