Open AccessElectrophoretic Codeposition of MoOx/MoS2 Thin Film for Platinum-Free Counter Electrode in Quantum Dot Solar Cells
Author(s) -
Thanh Tùng Nguyễn,
Huy Phap Ngo,
Thang Van Le,
Le Thanh Nguyen Huynh,
Viet Hai Le,
Thai Hoang Nguyen,
Hoang Long Ngo
Publication year - 2021
Publication title -
international journal of photoenergy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.426
H-Index - 51
eISSN - 1687-529X
pISSN - 1110-662X
DOI - 10.1155/2021/7691202
Subject(s) - electrophoretic deposition , auxiliary electrode , electrode , molybdenum disulfide , polysulfide , materials science , quantum dot , electrolyte , molybdenum , platinum , chemical engineering , energy conversion efficiency , solar cell , electrophoresis , deposition (geology) , optoelectronics , nanotechnology , chemistry , catalysis , coating , composite material , chromatography , metallurgy , paleontology , biochemistry , sediment , biology , engineering
The MoOx/MoS2 thin films were manufactured on conducting glass (FTO) from the ethanolic mixture of colloidal molybdenum disulfide (MoS2) and molybdenum oxides (MoOx) by electrophoretic deposition method and were used for counter electrode of quantum dot solar cells. Different ramp-rate conditions for electrophoretic deposition as well as bias potential were investigated in an attempt to get the highest possible electrocatalytic activity of polysulfide (S2-/Sn2-) redox couple. In this research, interestingly, by simply using CdS/CdSe/ZnS photoanode and polysulfide electrolyte under 1000 W.m−2 AM 1.5 G illumination, the power conversion efficiency of MoOx/MoS2-counter-electrode-based QDSC was achieved up to 2.01%, which was double compared to platinum-based counter electrode of QDSCs.
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