量子点
纳米晶
钙钛矿(结构)
纳米晶材料
材料科学
碘化物
纳米棒
太阳能电池
能量转换效率
电解质
钙钛矿太阳能电池
旋涂
化学工程
纳米技术
光化学
光电子学
无机化学
电极
涂层
化学
物理化学
工程类
作者
Jeong‐Hyeok Im,Chang-Ryul Lee,Jin Wook Lee,Sang-Won Park,Nam‐Gyu Park
出处
期刊:Nanoscale
[The Royal Society of Chemistry]
日期:2011-01-01
卷期号:3 (10): 4088-4088
被引量:2778
摘要
Highly efficient quantum-dot-sensitized solar cell is fabricated using ca. 2-3 nm sized perovskite (CH(3)NH(3))PbI(3) nanocrystal. Spin-coating of the equimolar mixture of CH(3)NH(3)I and PbI(2) in γ-butyrolactone solution (perovskite precursor solution) leads to (CH(3)NH(3))PbI(3) quantum dots (QDs) on nanocrystalline TiO(2) surface. By electrochemical junction with iodide/iodine based redox electrolyte, perovskite QD-sensitized 3.6 μm-thick TiO(2) film shows maximum external quantum efficiency (EQE) of 78.6% at 530 nm and solar-to-electrical conversion efficiency of 6.54% at AM 1.5G 1 sun intensity (100 mW cm(-2)), which is by far the highest efficiency among the reported inorganic quantum dot sensitizers.
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