Dye-Sensitized Tandem Solar Cells with Extremely High Open-Circuit Voltage Using Co(II)/Co(III) Electrolyte
- Authors
- Choi, Won Seok; Choi, In Taek; You, Ban Seok; Yang, Ji-Woon; Ju, Myung Jong; Kim, Hwan Kyu
- Issue Date
- 9월-2015
- Publisher
- WILEY-V C H VERLAG GMBH
- Keywords
- dye-sensitized solar cells; redox couples; renewable resources; semiconductors; sensitizers
- Citation
- ISRAEL JOURNAL OF CHEMISTRY, v.55, no.9, pp.1002 - 1010
- Indexed
- SCIE
SCOPUS
- Journal Title
- ISRAEL JOURNAL OF CHEMISTRY
- Volume
- 55
- Number
- 9
- Start Page
- 1002
- End Page
- 1010
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/92624
- DOI
- 10.1002/ijch.201400204
- ISSN
- 0021-2148
- Abstract
- For achieving a high open-circuit voltage (V-oc) in dye-sensitized tandem solar cells, series-connected tandem solar cells were fabricated. In order to optimize series-connected tandem solar cell systems, the current density of the top and bottom cells should be well matched to be identical, and the V-oc of each of the cells should also be as high as possible. Furthermore, the top cell should be transparent and the bottom cell should have the longer-wavelength absorption, for utilizing only the light passing through the top cell. This leads to a high V-oc. In this study, we report dye-sensitized tandem solar cells having an extremely high V-oc using the Co(bpy)(3)(2+/3+) (bpy=2,2'-bipyridine) redox couple. Dye-sensitized tandem solar cells employing JK303/HC-A1 with the Co(bpy)(3)(2+/3+) redox couple as the top cell and N749/HC-A4 with the I-/I-3(-) redox couple as the bottom cell were shown to have an extremely high V-oc of >1.66 V, the highest value for dye-sensitized tandem solar cells reported to date.
- Files in This Item
- There are no files associated with this item.
- Appears in
Collections - Graduate School > Department of Electronics and Information Engineering > 1. Journal Articles
- Graduate School > Department of Advanced Materials Chemistry > 1. Journal Articles
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.