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-/I-3(-) 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-/I-3(-) redox electrolytes in different water compositions. The findings revealed that the competitive photovoltaic performance and long-term stability of water-containing DSSCs mainly depends on the hydrophobicity of dye as well as the transport phenomena of I-3(-) 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%2Fs40684-019-00025-4http://repository.hanyang.ac.kr/handle/20.500.11754/107345
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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