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Design and Fabrication of Long‑Term Stable Dye‑Sensitized Solar Cells: Effect of Water Contents in Electrolytes on the Performance

Title
Design and Fabrication of Long‑Term Stable Dye‑Sensitized Solar Cells: Effect of Water Contents in Electrolytes on the Performance
Author
고민재
Keywords
Dye-sensitized solar cells; Water-containing liquid electrolytes; Dye; Photovoltaic performance; Long-term stability
Issue Date
2019-01
Publisher
KOREAN SOC PRECISION ENG
Citation
INTERNATIONAL JOURNAL OF PRECISION ENGINEERING AND MANUFACTURING-GREEN TECHNOLOGY, v. 6, no. 1, Page. 125-131
Abstract
The effects of water-containing I−/I3− liquid electrolytes on the photovoltaic performance and long-term stability of ruthenium based complex Z907 dye was examined in dye-sensitized solar cells (DSSCs). Despite of high water content up to 60 vol% in organic solvent-based liquid electrolyte, the photovoltaic properties and long-term stability measured under the standard global (G) air-mass (AM) 1.5 solar irradiation were not significantly affected. The underlying correlation between the effects of water and the photovoltaic performances were identified by UV–visible spectroscopy and electrochemical impedance spectroscopy. We investigated the long-term stability of performance for DSSCs in conjunction with I−/ I3− redox electrolytes in different water compositions. The findings revealed that the competitive photovoltaic performance and longterm stability of water-containing DSSCs mainly depends on the hydrophobicity of dye as well as the transport phenomena of I3− throughout the electrolytes. The water-based DSSCs proposed herein are free from water permeation issues and these results will provide great insight into the development of less expensive and more environmental friendly DSSCs.
URI
https://link.springer.com/article/10.1007%2Fs40684-019-00025-4https://repository.hanyang.ac.kr/handle/20.500.11754/103560
ISSN
2288-6206; 2198-0810
DOI
10.1007/s40684-019-00025-4
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > CHEMICAL ENGINEERING(화학공학과) > Articles
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