High‐efficiency flexible III‐V photovoltaic solar cells based on single‐crystal‐like thin films directly grown on metallic tapes

• DOI: 10.1002/pip.3070
• Publication Date: 2018-08-07T09:29:44Z
• Authors: Sara Pouladi; Monika Rathi; Devendra Khatiwada; Mojtaba Asadirad; Seung Kyu Oh; Pavel Dutta; Yao Yao; Ying Gao; Sicong Sun; Yongkuan Li; Shahab Shervin; Keon‐Hwa Lee; Venkat Selvamanickam; Jae‐Hyun Ryou
• Keywords: Open-circuit voltage

Abstract This study demonstrates the first flexible single‐junction III‐V photovoltaic solar cells (SCs) based on single‐crystal‐like gallium arsenide (GaAs) thin films a low‐cost metal substrate by direct and continuous deposition, which can bypass expensive single crystal wafer fabrication. The two‐dimensional modeling of GaAs SC is developed used to feasibility for high performance devices. A promising device characteristic with an open‐circuit voltage 560 mV short circuit current 19.4 mA/cm 2 , resulting in conversion efficiency ~7.6%, demonstrated.