TY - JOUR
T1 - A paper-based electrode using a graphene dot/PEDOT:PSS composite for flexible solar cells
AU - Lee, Chuan-Pei
AU - Lai, Kun-Yu
AU - Lin, Chin-An
AU - Li, Chun-Ting
AU - Ho, Kuo-Chuan
AU - Wu, Chih-I
AU - Lau, Shu-Ping
AU - He, Jr-Hau
N1 - KAUST Repository Item: Exported on 2020-10-01
Acknowledged KAUST grant number(s): OSR-2016-CRG5-3005, FCC/1/3079-08-01
Acknowledgements: This work was financially supported by the King Abdullah University of Science and Technology (KAUST) Office of Sponsored Research (OSR) (OSR-2016-CRG5-3005), KAUST solar center (FCC/1/3079-08-01), KAUST baseline funding, the Research Grants Council of Hong Kong (PolyU 153012/14P), the National Natural Science Foundation of China (11374250), and National Taiwan University (102R4000).
PY - 2017/4/22
Y1 - 2017/4/22
N2 - We have synthesized a metal-free composite ink that contains graphene dots (GDs) and poly(3,4-ethylenedioxythiophene):polystyrene sulfonate (PEDOT:PSS) that can be used on paper to serve as the counter electrode in a flexible dye-sensitized solar cell (DSSC). This paper-based GD/PEDOT:PSS electrode is low-cost, light-weight, flexible, environmentally friendly, and easy to cut and process for device fabrication. We determined the GD/PEDOT:PSS composite effectively fills the dense micro-pores in the paper substrate, which leads to improved carrier transport in the electrode and a 3-fold enhanced cell efficiency as compared to the paper electrode made with sputtered Pt. Moreover, the DSSC with the paper electrode featuring the GD/PEDOT:PSS composite did not fail in photovoltaic tests even after bending the electrode 150 times, whereas the device made with the Pt-based paper electrode decreased in efficiency by 45% after such manipulation. These exceptional properties make the metal-free GD/PEDOT:PSS composite ink a promising electrode material for a wide variety of flexible electronic applications.
AB - We have synthesized a metal-free composite ink that contains graphene dots (GDs) and poly(3,4-ethylenedioxythiophene):polystyrene sulfonate (PEDOT:PSS) that can be used on paper to serve as the counter electrode in a flexible dye-sensitized solar cell (DSSC). This paper-based GD/PEDOT:PSS electrode is low-cost, light-weight, flexible, environmentally friendly, and easy to cut and process for device fabrication. We determined the GD/PEDOT:PSS composite effectively fills the dense micro-pores in the paper substrate, which leads to improved carrier transport in the electrode and a 3-fold enhanced cell efficiency as compared to the paper electrode made with sputtered Pt. Moreover, the DSSC with the paper electrode featuring the GD/PEDOT:PSS composite did not fail in photovoltaic tests even after bending the electrode 150 times, whereas the device made with the Pt-based paper electrode decreased in efficiency by 45% after such manipulation. These exceptional properties make the metal-free GD/PEDOT:PSS composite ink a promising electrode material for a wide variety of flexible electronic applications.
UR - http://hdl.handle.net/10754/623287
UR - http://www.sciencedirect.com/science/article/pii/S221128551730246X
UR - http://www.scopus.com/inward/record.url?scp=85017961831&partnerID=8YFLogxK
U2 - 10.1016/j.nanoen.2017.04.044
DO - 10.1016/j.nanoen.2017.04.044
M3 - Article
SN - 2211-2855
VL - 36
SP - 260
EP - 267
JO - Nano Energy
JF - Nano Energy
ER -
