Material Design and Device Fabrication Strategies for Stretchable Organic Solar Cells

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Recent advances in the power conversion efficiency (PCE) of organic solar cells (OSCs) have greatly enhanced their commercial viability. Considering the technical standards (e.g., mechanical robustness) required for wearable electronics, which are promising application platforms for OSCs, the development of fully stretchable OSCs (f-SOSCs) should be accelerated. Here, a comprehensive overview of f-SOSCs, which are aimed to reliably operate under various forms of mechanical stress, including bending and multidirectional stretching, is provided. First, the mechanical requirements of f-SOSCs, in terms of tensile and cohesion/adhesion properties, are summarized along with the experimental methods to evaluate those properties. Second, essential studies to make each layer of f-SOSCs stretchable and efficient are discussed, emphasizing strategies to simultaneously enhance the photovoltaic and mechanical properties of the active layer, ranging from material design to fabrication control. Key improvements to the other components/layers (i.e., substrate, electrodes, and interlayers) are also covered. Lastly, considering that f-SOSC research is in its infancy, the current challenges and future prospects are explored.
Publisher
WILEY-V C H VERLAG GMBH
Issue Date
2022-08
Language
English
Article Type
Review
Citation

ADVANCED MATERIALS, v.34, no.31

ISSN
0935-9648
DOI
10.1002/adma.202201623
URI
http://hdl.handle.net/10203/297911
Appears in Collection
CBE-Journal Papers(저널논문)EE-Journal Papers(저널논문)
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