Frontiers of Optoelectronics, 2017, 10 (4): 402, 网络出版: 2018-01-17  

Indium tin oxide-free inverted polymer solar cells with ultrathin metal transparent electrodes

Indium tin oxide-free inverted polymer solar cells with ultrathin metal transparent electrodes
作者单位
Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan 430074, China
摘要
Abstract
Efficient indium tin oxide (ITO)-free inverted polymer solar cells (PSCs) were fabricated by applying ultrathin metal transparent electrodes as sunlight incident electrodes. Smooth and continuous Ag film of 4 nm thickness was developed through the introduction of a 2 nm Au seed layer. Ultrathin Ag transparent electrode with an average transmittance of up to 80% from 480 to 680 nm and a sheet resistance of 35.4 W/sq was obtained through the introduction of a ZnO anti-reflective layer. The ultrathin metal electrode could be directly used as cathode in polymer solar cells without oxygen plasma treatment. ITO-free inverted PSCs obtained a power conversion efficiency (PCE) of 5.2% by utilizing the ultrathin metal transparent electrodes. These results demonstrated a simple method of fabricating ITO-free inverted PSCs.

Tao YUAN, Zhonghuan CAO, Guoli TU. Indium tin oxide-free inverted polymer solar cells with ultrathin metal transparent electrodes[J]. Frontiers of Optoelectronics, 2017, 10(4): 402. Tao YUAN, Zhonghuan CAO, Guoli TU. Indium tin oxide-free inverted polymer solar cells with ultrathin metal transparent electrodes[J]. Frontiers of Optoelectronics, 2017, 10(4): 402.

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