Journal
CHEMNANOMAT
Volume 1, Issue 6, Pages 399-402Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/cnma.201500093
Keywords
dye-sensitized solar cells; gel electrolyte; ionic liquids; stretchable
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Funding
- MOST [2011CB932503]
- NSFC [21225417]
- STCSM [12nm0503200]
- Fok Ying Tong Education Foundation
- Program for Special Appointments of Professors at Shanghai Institutions of Higher Learning
- Program for Outstanding Young Scholars from the Organization Department of the CPC Central Committee
- State Key Laboratory of Molecular Engineering of Polymers
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Fiber-shaped dye-sensitized solar cells have attracted increasing interest in powering wearable and portable electronic devices. However, the use of liquid electrolytes gives rise to vulnerabilities, greatly limiting their practical applications. Here we develop a stable gel electrolyte based on polymer-ionic liquid gel with high non-volatility and durability. The gel electrolyte maintains a quasi-solid state from room temperature to 98 degrees C and can sustain high temperatures up to 300 degrees C. Based on this gel electrolyte, the resulting fiber-shaped dye-sensitized solar cell achieves a power conversion efficiency of 5.47% that remains at 90% after 30 days. The gel electrolyte makes the device more environmentally adaptive and compatible to bending and stretching deformations.
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