Economical low-light photovoltaics by using the Pt-free dye-sensitized solar cell with graphene dot/PEDOT:PSS counter electrodes
Type
ArticleAuthors
Lee, Chuan PeiLin, Chin An
Wei, Tzu Chiao
Tsai, Meng-Lin

Meng, Ying
Li, Chun Ting
Ho, Kuo Chuan
Wu, Chih I.
Lau, Shu Ping
He, Jr-Hau

KAUST Department
Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) DivisionElectrical Engineering Program
KAUST Solar Center (KSC)
Date
2015-10-23Online Publication Date
2015-10-23Print Publication Date
2015-11Permanent link to this record
http://hdl.handle.net/10754/622286
Metadata
Show full item recordAbstract
Graphene dots (GDs) are used for enhancing the performance of the poly(3,4-ethylenedioxythiophene):polystyrenesulfonate (PEDOT:PSS)-based counter electrodes in Pt-free dye-sensitized solar cells (DSSCs). As compared to PEDOT:PSS CEs, GD-PEDOT:PSS films possess a rough surface morphology, high conductivity and electrocatalytic activity, and low charge-transfer resistance toward I/I redox reaction, pushing cell efficiency to 7.36%, which is 43% higher than that of the cell with PEDOT:PSS CEs (5.14%). Without much impact on efficiency, the DSSCs with GD-PEDOT:PSS CEs work well under low-light conditions (light intensity <13.5mWcm and angle of incidence >60°), such as indoor and low-level outdoor lighting and of the sun while the other traditional cells would fail to work. The concurrent advantage in low cost in Pt-free materials, simple fabrication processes, comparable efficiency with Pt CEs, and high performance under low-light conditions makes the DSSC with GD-PEDOT:PSS CEs suitable to harvest light for a diverse range of indoor and low-level outdoor lighting locations.Citation
Lee C-P, Lin C-A, Wei T-C, Tsai M-L, Meng Y, et al. (2015) Economical low-light photovoltaics by using the Pt-free dye-sensitized solar cell with graphene dot/PEDOT:PSS counter electrodes. Nano Energy 18: 109–117. Available: http://dx.doi.org/10.1016/j.nanoen.2015.10.008.Sponsors
This work was financially supported by KAUST baseline fund, the Research Grants Council of Hong Kong (Project no. PolyU 153012/14P), the National Natural Science Foundation of China (Grant no. 11374250), and National Taiwan University (102R4000).Publisher
Elsevier BVJournal
Nano Energyae974a485f413a2113503eed53cd6c53
10.1016/j.nanoen.2015.10.008