Frontiers of Optoelectronics, Volume. 10, Issue 4, 402(2017)
Indium tin oxide-free inverted polymer solar cells with ultrathin metal transparent electrodes
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.
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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
Category: RESEARCH ARTICLE
Received: Mar. 16, 2017
Accepted: May. 27, 2017
Published Online: Jan. 17, 2018
The Author Email: TU Guoli (tgl@hust.edu.cn)