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Graphene tailored gel electrolytes for quasi-solid-state quantum dot-sensitized solar cells.
- Source :
-
Electrochimica Acta . Sep2018, Vol. 283, p597-602. 6p. - Publication Year :
- 2018
-
Abstract
- Quantum dot-sensitized solar cells (QDSCs) are promising for future renewable sources. By addressing the issues on liquid-electrolyte leakage and sluggish charge transportation, a class of graphene oxide tailored polyacrylamide (PAAm/GO) gel electrolytes are synthesized for quasi-solid-state QDSC applications. The conducting pathways with interconnected GO species can catalyze reduction reaction from S n 2− to S 2− and therefore shorten charge-transfer length. Upon illumination by simulated sunlight (AM1.5, 100 mW cm −2 ), the optimized QDSC with PAAm/0.9% GO yields a maximized power conversion efficiency of 4.10% in comparison with 1.78% for the device free of GO. Arising from the good retention of liquid electrolyte by three-dimensional PAAM/GO framework, the final quasi-solid-state QDSCs present good long-term stability. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00134686
- Volume :
- 283
- Database :
- Academic Search Index
- Journal :
- Electrochimica Acta
- Publication Type :
- Academic Journal
- Accession number :
- 131130728
- Full Text :
- https://doi.org/10.1016/j.electacta.2018.06.199