DataVXAdvanced Optical MaterialsPaper
journal article·2020-09

Biomimetic Electrodes for Flexible Organic Solar Cells with Efficiencies over 16%

Tian‐Yi Qu, Li‐Jian Zuo, Jing‐De Chen, Xueliang Shi, Ting Zhang, Ling Li, Kong‐Chao Shen, Hao Ren, Shu Wang, Feng‐Ming Xie, Yan‐Qing Li, Alex K.‐Y. Jen, Jian‐Xin Tang

Advanced Optical Materials· Volume 8· Issue 17
Publisher page
Source abstract

Abstract

Abstract Flexible organic solar cells (OSCs) are very promising for use in portable power supply devices due to the advantages of low‐cost, light‐weight, and flexibility. However, the efficiencies of flexible OSCs are limited by the flexible transparent electrodes owing to their nonoptimal electrical, optical, and mechanical properties. To address these challenges, leaf‐like biomimetic electrodes are proposed to achieve an efficient light capture and glossy surface for a high‐efficiency flexible OSC. To mimic the internal anatomy of the leaf, the conformable electrode stack consists of a flexible polyimide substrate, light‐scattering polystyrene spheres, zinc oxide protecting layer, and electrically conductive silver nanowires to obtain a high transmittance, low sheet resistance, and low surface roughness. A record‐high power conversion efficiency of 16.1% is realized by a flexible OSC with the biomimetic electrode design, comparable to those rigid devices on glass. Moreover, the flexible OSC on this biomimetic electrode exhibits a robust bendability against flexural strain, retaining 85% of the initial efficiency after 5000 bending cycles at a radius of curvature as small as 1.0 mm.
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Research context

Ceramics & glassesNanomaterials

OpenAlex topics: Organic Electronics and Photovoltaics · Advanced Sensor and Energy Harvesting Materials · Conducting polymers and applications

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Jiangsu Key Laboratory for Carbon‐Based Functional Materials and Devices Institute of Functional Nano and Soft Materials (FUNSOM) Soochow University Suzhou Jiangsu 215123 P. R. China

Department of Materials Science and Engineering University of Washington Seattle WA 98195 USA

School of Chemistry and Molecular Engineering East China Normal University Shanghai 200062 China

eFlexPV Limited Hang Seng Causeway Bay BLDG 28 Yee Wo Street, Causeway Bay Hong Kong 999077 China

School of Physics and Electronics Science Ministry of Education Nanophotonics and Advanced Instrument Engineering Research Center East China Normal University Shanghai 200062 China

Department of Chemistry and Department of Materials Science and Engineering City University of Hong Kong Kowloon Hong Kong 999077 China

Funding

National Natural Science Foundation of China · Natural Science Foundation of Jiangsu Province · Collaborative Innovation Center of Suzhou Nano Science and Technology · Office of Naval Research

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