High Open-Circuit Voltages in Tin-Rich Low-Bandgap Perovskite-Based Planar Heterojunction Photovoltaics

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• 作者：Baodan Zhao ; Mojtaba Abdi-Jalebi ; Maxim Tabachnyk ; Hugh Glass ; Varun S. Kamboj ; Wanyi Nie ; Andrew J. Pearson ; Yuttapoom Puttisong ; Karl C. G&ouml ; del ; Harvey E. Beere ; David A. Ritchie ; Aditya D. Mohite ; Siâ ; n E. Dutton ; Richard H. Friend and Aditya Sadhanala
• 刊名：Advanced Materials
• 出版年：2017
• 出版时间：January 11, 2017
• 年：2017
• 卷：29
• 期：2
• 全文大小：1093K
• ISSN：1521-4095

文摘

Low-bandgap CH₃NH₃(Pb_xSn_1&ndash;x)I₃ (0 &le; x &le; 1) hybrid perovskites (e.g., ≈1.5&ndash;1.1 eV) demonstrating high surface coverage and superior optoelectronic properties are fabricated. State-of-the-art photovoltaic (PV) performance is reported with power conversion efficiencies approaching 10% in planar heterojunction architecture with small (<450 meV) energy loss compared to the bandgap and high (>100 cm² V⁻¹ s⁻¹) intrinsic carrier mobilities.