S-1805/Ag/Au Hybrid Transparent Electrodes for ITO-f ree Flexible Organic Photovoltaics

doi:10.1007/s40242-019-8269-4

Chemical Research in Chinese Universities ›› 2019, Vol. 35 ›› Issue (3): 509-513.doi: 10.1007/s40242-019-8269-4

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S-1805/Ag/Au Hybrid Transparent Electrodes for ITO-f ree Flexible Organic Photovoltaics

WEN Xuemei¹, YI Fangshun¹, JI Jinhai¹, BI Yangang¹, ZHANG Wenyi³, WANG Wenquan²

1. State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun 130012, P. R. China;
2. College of Physics, Jilin University, Changchun 130012, P. R. China;
3. Systems Engineering Research Institute, Beijing 100094, P. R. China

Received:2018-08-30 Revised:2019-01-28 Online:2019-06-01 Published:2019-03-27
Contact: BI Yangang E-mail:yangang_bi@jlu.edu.cn
Supported by:
Supported by the National Key Research and Development Program of China(No.2017YFB0404500), the National Natural Science Foundation of China(Nos.61705075, 61505065, 61605056, and 61675085), and the China Postdoctoral Science Founda-tion(No.2016M600230).

Abstract

Abstract: We fabricated an S-1805/Ag/Au hybrid transparent electrode based on 4.4 nm ultrathin Au film, which exhibited a high transparency(T=78% at 550 nm), a low sheet resistance(R_s=70 Ω/sq), and an extremely smooth surface(roughness=0.37 nm). The three-dimensional(3D) island growth mode of 4.4 nm Au film was resisted by the chemical bonding effect of the nonconductive S-1805 film and the wetting behavior of 0.6 nm Ag layer. The S-1805/Ag/Au hybrid transparent electrodes were used as the replacement of ITO anodes in flexible organic photovoltaics(OPVs), and the S-1805/Ag/Au-based OPVs resulted in the similar power conversion efficiency compared to ITO-based devices. High flexibility and mechanical robustness were demonstrated in the ITO-free OPVs without obvious degeneration in device performance after over 2000 repeated bending cycles.

Key words: Ultrathin metal film, Hybrid transparent electrode, Flexible organic photovoltaics

WEN Xuemei, YI Fangshun, JI Jinhai, BI Yangang, ZHANG Wenyi, WANG Wenquan. S-1805/Ag/Au Hybrid Transparent Electrodes for ITO-f ree Flexible Organic Photovoltaics[J]. Chemical Research in Chinese Universities, 2019, 35(3): 509-513.

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S-1805/Ag/Au Hybrid Transparent Electrodes for ITO-f ree Flexible Organic Photovoltaics

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