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- Title
Waterproof India Ink-Coated Activated Carbon Sheet Counter Electrode for Quasi-Solid DSSCs: Stability Evaluation Under Indoor Light Conditions.
- Authors
Nguyen, Dang-Trang; Fujimoto, Ryota; Taguchi, Kozo
- Abstract
Dye-sensitized solar cells (DSSCs) are promising for indoor battery-less applications thanks to their high performance in office light conditions. The rare and expensive Pt metal is conventionally used as a high-performance counter electrode (CE) material in DSSCs. Carbon-based material is expected to be an economical alternative to Pt. The stability of the carbon-based CE in DSSCs working in indoor conditions has not been widely evaluated. In this study, a commercially available waterproof India ink was coated on a flexible activated carbon sheet to make the CE of a quasi-solid DSSC. The fabricated CE was flexible and low cost and could produce comparable conversion efficiency to a control Pt-coated glass CE under AM1.5G illumination. Moreover, the operation stability of the fabricated CE was evaluated for 1200 h under 250 lx indoor light intensity. The stable maximum power output of 5.4 μW/cm2 was obtained during the test period. In indoor light conditions, the DSSC using the fabricated CE showed higher output power density than that of the DSSC with the control Pt-coated glass CE.
- Subjects
DYE-sensitized solar cells; WATERPROOFING; ELECTRODES; POWER density; LIGHT intensity
- Publication
Journal of Electronic Materials, 2022, Vol 51, Issue 4, p1548
- ISSN
0361-5235
- Publication type
Article
- DOI
10.1007/s11664-021-09422-5