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Completely Transparent Conducting Oxide-Free and Flexible Dye-Sensitized Solar Cells Fabricated on Plastic Substrates

Title
Completely Transparent Conducting Oxide-Free and Flexible Dye-Sensitized Solar Cells Fabricated on Plastic Substrates
Authors
Yoo, KicheonKim, Jae-YupLee, Jin AhKim, Jin SooLee, Doh-KwonKim, KyungkonKim, Jin YoungKim, BongSooKim, HonggonKim, Won MokKim, Jong HakKo, Min Jae
Ewha Authors
김경곤김봉수
SCOPUS Author ID
김경곤scopus; 김봉수scopus
Issue Date
2015
Journal Title
ACS NANO
ISSN
1936-0851JCR Link1936-086XJCR Link
Citation
vol. 9, no. 4, pp. 3760 - 3771
Keywords
dye-sensitized solar cellsTCO-freeflexibleplastic substratestransfer method
Publisher
AMER CHEMICAL SOC
Indexed
SCI; SCIE; SCOPUS WOS scopus
Abstract
To achieve commercialization and widespread application of next-generation photovoltaics, it is important to develop flexible and cost-effective devices. Given this, the elimination of expensive transparent conducting oxides (TCO) and replacement of conventional glass substrates with flexible plastic substrates presents a viable strategy to realize extremely low-cost photovoltaics with a potentially wide applicability: To this end, we report a completely TCO-free and flexible dye-sensitized solar cell (DSSC) fabricated on a plastic substrate using a unique transfer method and back-contact architecture. By adopting unique transfer techniques, the working and counter electrodes were fabricated by transferring high-temperature-annealed TiO2 and Pt/carbon films, respectively, onto flexible plastic substrates without any exfoliation. The fabricated working electrode with the conventional counter electrode exhibited a record efficiency for flexible DSSCs of 8.10%, despite its TCO-free structure. In addition, the completely TCO-free and flexible DSSC exhibited a remarkable efficiency of 7.27%. Furthermore, by using an organic hole-transporting material (spiro-MeOTAD) with the same transfer method, solid-state flexible TCO-free DSSCs were also successfully fabricated, yielding a promising efficiency of 3.36%.
DOI
10.1021/acsnano.5b01346
Appears in Collections:
자연과학대학 > 화학·나노과학전공 > Journal papers
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