Large area growth of MoTe₂ films as high performance counter electrodes for dye-sensitized solar cellsopen access
- Authors
- Hussain, Sajjad; Patil, Supriya A.; Vikraman, Dhanasekaran; Mengal, Naveed; Liu, Hailiang; Song, Wooseok; An, Ki-Seok; Jeong, Sung Hoon; Kim, Hak-Sung; Jung, Jongwan
- Issue Date
- Jan-2018
- Publisher
- NATURE PORTFOLIO
- Citation
- SCIENTIFIC REPORTS, v.8, no.1
- Indexed
- SCIE
SCOPUS
- Journal Title
- SCIENTIFIC REPORTS
- Volume
- 8
- Number
- 1
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/17889
- DOI
- 10.1038/s41598-017-18067-6
- ISSN
- 2045-2322
- Abstract
- A cost effective and efficient alternative counter electrode (CE) to replace commercially existing platinum (Pt)-based CEs for dye-sensitized solar cells (DSSCs) is necessary to make DSSCs competitive. Herein, we report the large-area growth of molybdenum telluride (MoTe₂) thin films by sputteringchemical vapor deposition (CVD) on conductive glass substrates for Pt-free CEs of DSSCs. Cyclic voltammetry (CV), Tafel curve analysis, and electrochemical impedance spectroscopy (EIS) results showed that the as-synthesized MoTe₂ exhibited good electrocatalytic properties and a low charge transfer resistance at the electrolyte-electrode interface. The optimized MoTe₂ CE revealed a high power conversion efficiency of 7.25% under a simulated solar illumination of 100 mW cm(-2) (AM 1.5), which was comparable to the 8.15% observed for a DSSC with a Pt CE. The low cost and good electrocatalytic properties of MoTe₂ thin films make them as an alternative CE for DSSCs.
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Collections - 서울 공과대학 > 서울 기계공학부 > 1. Journal Articles
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