Si Hybrid Solar Cells with 13% Efficiency via Concurrent Improvement in Optical and Electrical Properties by Employing Graphene Quantum Dots
Chang, Hung Chih
Tai, Shih Hsiang
Yang, Po Kang
Lau, Shu Ping
Chen, Lih Juann
KAUST DepartmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
Electrical Engineering Program
KAUST Solar Center (KSC)
Online Publication Date2015-12-21
Print Publication Date2016-01-26
Permanent link to this recordhttp://hdl.handle.net/10754/622359
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AbstractBy 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 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.
CitationTsai M-L, Wei W-R, Tang L, Chang H-C, Tai S-H, et al. (2016) Si Hybrid Solar Cells with 13% EfficiencyviaConcurrent Improvement in Optical and Electrical Properties by Employing Graphene Quantum Dots. ACS Nano 10: 815–821. Available: http://dx.doi.org/10.1021/acsnano.5b05928.
SponsorsThis work was supported by the Research Grants Council of Hong Kong (Project No. PolyU 153012/14P) and National Natural Science Foundation of China (NSFC Grant No. 11374250).
PublisherAmerican Chemical Society (ACS)