Mixed Iodide鈥揃romide Methylammonium Lead Perovskite-based Diodes for Light Emission and Photovoltaics

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• 作者：Lid贸n Gil-Escrig ; Araceli Miquel-Sempere ; Michele Sessolo ; Henk J. Bolink
• 刊名：The Journal of Physical Chemistry Letters
• 出版年：2015
• 出版时间：September 17, 2015
• 年：2015
• 卷：6
• 期：18
• 页码：3743-3748
• 全文大小：405K
• ISSN：1948-7185

文摘

Vacuum deposition techniques are used to prepare mixed iodide鈥揵romide methylammonium lead perovskite diodes via an intermediate double layer of the pure iodide and bromide perovskites. The diodes lead to bright electroluminescence, whose emission spectra maxima shift from the infrared toward the visible with increasing bromide content. When illuminated with AM1.5 simulated sunlight the devices function as efficient solar cells with power conversion efficiencies as high as 12.9%.