TY - JOUR
T1 - Transparent MoS2/PEDOT Composite Counter Electrodes for Bifacial Dye-Sensitized Solar Cells
AU - Xu, Tingting
AU - Kong, Dechong
AU - Tang, Huijie
AU - Qin, Xiulan
AU - Li, Xuanhua
AU - Gurung, Ashim
AU - Kou, Kaichang
AU - Chen, Lixin
AU - Qiao, Qiquan
AU - Huang, Wei
N1 - Funding Information:
The authors sincerely thank financial support from the National Natural Science Foundation of China (51972274), the Fundamental Research Funds for the Central Universities (310201911cx035), Natural Science Basis Research Plan in Shaanxi Province (2019JM-328), China Postdoctoral Science Foundation (2019M653730), and the Seed Foundation of Innovation and Creation for Graduate Students in Northwestern Polytechnical University (ZZ2019231 and ZZ2019035). We would like to thank the Analytical & Testing Center of NWPU for the SEM and TEM measurements.
Publisher Copyright:
Copyright © 2020 American Chemical Society.
PY - 2020/4/21
Y1 - 2020/4/21
N2 - Dye-sensitized solar cells (DSSCs) are solar energy conversion devices with high efficiency and simple fabrication procedures. Developing transparent counter electrode (CE) materials for bifacial DSSCs can address the needs of window-type building-integrated photovoltaics (BIPVs). Herein, transparent organic-inorganic hybrid composite films of molybdenum disulfide and poly(3,4-ethylenedioxythiophene) (MoS2/PEDOT) are prepared to take full advantage of the conductivity and electrocatalytic ability of the two components. MoS2 is synthesized by hydrothermal method and spin-coated to form the MoS2 layer, and then PEDOT films are electrochemically polymerized on top of the MoS2 film to form the composite CEs. The DSSC with the optimized MoS2/PEDOT composite CE shows power conversion efficiency (PCE) of 7% under front illumination and 4.82% under back illumination. Compared with the DSSC made by the PEDOT CE and the Pt CE, the DSSC fabricated by the MoS2/PEDOT composite CE improves the PCE by 10.6% and 6.4% for front illumination, respectively. It proves that the transparent MoS2/PEDOT CE owes superior conductivity and catalytic properties, and it is an excellent candidate for bifacial DSSC in the application of BIPVs.
AB - Dye-sensitized solar cells (DSSCs) are solar energy conversion devices with high efficiency and simple fabrication procedures. Developing transparent counter electrode (CE) materials for bifacial DSSCs can address the needs of window-type building-integrated photovoltaics (BIPVs). Herein, transparent organic-inorganic hybrid composite films of molybdenum disulfide and poly(3,4-ethylenedioxythiophene) (MoS2/PEDOT) are prepared to take full advantage of the conductivity and electrocatalytic ability of the two components. MoS2 is synthesized by hydrothermal method and spin-coated to form the MoS2 layer, and then PEDOT films are electrochemically polymerized on top of the MoS2 film to form the composite CEs. The DSSC with the optimized MoS2/PEDOT composite CE shows power conversion efficiency (PCE) of 7% under front illumination and 4.82% under back illumination. Compared with the DSSC made by the PEDOT CE and the Pt CE, the DSSC fabricated by the MoS2/PEDOT composite CE improves the PCE by 10.6% and 6.4% for front illumination, respectively. It proves that the transparent MoS2/PEDOT CE owes superior conductivity and catalytic properties, and it is an excellent candidate for bifacial DSSC in the application of BIPVs.
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U2 - 10.1021/acsomega.0c00175
DO - 10.1021/acsomega.0c00175
M3 - Article
AN - SCOPUS:85083164836
SN - 2470-1343
VL - 5
SP - 8687
EP - 8696
JO - ACS Omega
JF - ACS Omega
IS - 15
ER -