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학술지 Improved Performance of Metal Foil-Based Dye-Sensitized Solar Cells with Low Porosity and Short Length of TiO2 Nanotube Underlayer
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저자
김명, 이경원, 장이운, 전대원, 주진우, 윤호경, 이인환
발행일
201407
출처
Electrochimica Acta, v.133, pp.610-614
ISSN
0013-4686
출판사
Elsevier
DOI
https://dx.doi.org/10.1016/j.electacta.2014.03.075
협약과제
13VB6300, 400㎠의 면적에서 효율 7% 이상을 갖는 유기 태양전지 서브 모듈 및 이를 위한 소재, 장비, 생산 공정 기술 개발, 윤호경
초록
In the present study, we propose low porosity and short length of TiO 2 nanotubes (NTs) as underlayer in dye-sensitized solar cells (DSSCs). Photovoltaic characteristics of DSSCs with and without TiO2 NT underlayer are compared using various electrochemical analyses. Low porosity by small pore diameter, thick walled NT geometry and short length of NT underlayer help efficient charge transfer and reduced recombination at the interface of TiO2 nanoparticles (NPs)/Ti substrate. As a result, we can achieve a conversion efficiency of 6.89% for DSSCs with TiO2 NT underlayer, which is about 20% higher than that obtained from DSSCs with only a TiO2 NPs layer. © 2014 Elsevier Ltd.
키워드
Dye-sensitized solar cell, Metal foil, Titanuim oxide nanotubes, Underlayer: Anodization
KSP 제안 키워드
Conversion efficiency(C.E.), Dye-sensitized solar cells(DSCs), Metal foil, Photovoltaic characteristics, Pore diameter, Thick walled, Ti substrate, TiO2 nanoparticles, efficient charge transfer, electrochemical analyses, improved performance