Si Hybrid Solar Cells with 13% Efficiency via Concurrent Improvement in Optical and Electrical Properties by Employing Graphene Quantum Dots

Tsai, Meng-Lin; Wei, Wan-Rou; Tang, Libin; Chang, Hung Chih; Tai, Shih Hsiang; Yang, Po Kang; Lau, Shu Ping; Chen, Lih Juann; He, Jr-Hau

Type

Article

Authors

Tsai, Meng-Lin

Wei, Wan-Rou
Tang, Libin
Chang, Hung Chih
Tai, Shih Hsiang
Yang, Po Kang
Lau, Shu Ping
Chen, Lih Juann
He, Jr-Hau

KAUST Department

Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
Electrical Engineering Program
KAUST Solar Center (KSC)

Date

2015-12-21

Online Publication Date

2015-12-21

Print Publication Date

2016-01-26

Permanent link to this record

http://hdl.handle.net/10754/622359

Metadata

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Abstract

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 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.

Citation

Tsai 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.