Design and Fabrication of Long-Term Stable Dye-Sensitized Solar Cells: Effect of Water Contents in Electrolytes on the Performance
- Authors
- Park, Jongwoo; Lee, Phillip; Ko, Min Jae
- Issue Date
- Jan-2019
- Publisher
- KOREAN SOC PRECISION ENG
- Keywords
- Dye-sensitized solar cells; Water-containing liquid electrolytes; Dye; Photovoltaic performance; Long-term stability
- Citation
- INTERNATIONAL JOURNAL OF PRECISION ENGINEERING AND MANUFACTURING-GREEN TECHNOLOGY, v.6, no.1, pp.125 - 131
- Indexed
- SCIE
SCOPUS
KCI
- Journal Title
- INTERNATIONAL JOURNAL OF PRECISION ENGINEERING AND MANUFACTURING-GREEN TECHNOLOGY
- Volume
- 6
- Number
- 1
- Start Page
- 125
- End Page
- 131
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/32919
- DOI
- 10.1007/s40684-019-00025-4
- ISSN
- 2288-6206
- 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.
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