Journal
ACS NANO
Volume 10, Issue 1, Pages 815-821Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsnano.5b05928
Keywords
hybrid solar cell; graphene; quantum dot; downconversion; PEDOT:PSS
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Funding
- Research Grants Council of Hong Kong [PolyU 153012/14P]
- National Natural Science Foundation of China (NSFC) [11374250]
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By employing graphene quantum dots (GQDs) in PEDOT:PSS, we have achieved an efficiency of 13.22% in Si/PEDOT:PSS hybrid solar cells. The efficiency enhancement is based on concurrent improvement in optical and electrical properties by the photon downconversion process and the improved conductivity of PEDOT:PSS via appropriate incorporation of GQDs. After introducing GQDs into PEDOT:PSS, the short circuit current and the fill factor of rear-contact optimized hybrid cells are increased from 32.11 to 36.26 mA/cm(2) and 62.85% to 63.87%, respectively. The organic inorganic hybrid solar cell obtained herein holds the promise for developing photon-managing, low-cost, and highly efficient photovoltaic devices.
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