Construction of dye-sensitized solar cells using wet chemical route synthesized MoSe₂ counter electrode
- Authors
- Vikraman, Dhanasekaran; Patil, Supriya A.; Hussain, Sajjad; Mengal, Naveed; Jeong, Sung Hoon; Jung, Jongwan; Park, Hui Joon; Kim, Hak-Sung; Kim, Hyun-Seok
- Issue Date
- Jan-2019
- Publisher
- ELSEVIER SCIENCE INC
- Keywords
- MoSe₂; DSSC; Electrocatalytic; Surface morphology; Wet chemical
- Citation
- JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY, v.69, pp.379 - 386
- Indexed
- SCIE
SCOPUS
KCI
- Journal Title
- JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
- Volume
- 69
- Start Page
- 379
- End Page
- 386
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/15156
- DOI
- 10.1016/j.jiec.2018.10.001
- ISSN
- 1226-086X
- Abstract
- This paper presents a simple and large area wet chemical preparation route for molybdenum diselenide (MoSe₂) atomic layers. MoSe₂ was synthesized onto fluorine doped tin oxide substrates and could be directly used as a counter electrode (CE) for dye-sensitized solar cells (DSSCs). The role of deposition time on the growth of MoSe₂ CE was elaborately discussed using Raman, X-ray diffraction and photoluminescence studies. Influence of wet chemical growth time on the surface modification of MoSe₂ CE was evidently demonstrated by scanning electron microscopy and atomic force microscopy studies. The MoSe₂ CE electrode has lower charge transfer resistance and superior electrocatalytic activity towards triiodide/iodide redox behavior, comparable to conventional Pt CEs. High power conversion efficiency of 7.28% was achieved, equivalent to scarce noble metal Pt CE (7.40%). Uniform surface morphology with active edge sites highly dominated to promote the superior electrocatalytic activity. This work opens a way to use an economical wet chemical method to fabricate the layered MoSe₂ CE as a replacement for high cost Pt based CE for DSSCs. (C) 2018 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.
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