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나노입자 연구단
나노입자 연구단
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Electrochemically Synthesized Mesoscopic Nickel Oxide Films as Photocathodes for Dye-Sensitized Solar Cells

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Title
Electrochemically Synthesized Mesoscopic Nickel Oxide Films as Photocathodes for Dye-Sensitized Solar Cells
Author(s)
Jin Soo Kang; Jin Kim; Jeong Soo Kim; Kyungju Nam; Hyungyung Jo; Yoon Jun Son; Jiho Kang; Juwon Jeong; Heeman Choe; Tae-Hyuk Kwon; Yung-Eun Sung
Publication Date
2018-08
Journal
ACS Applied Energy Materials, v.1, no., pp.4178 - 4185
Publisher
american chemical society
Abstract
Dye-sensitized solar cells (DSCs) have been considered as promising and reliable solar energy conversion devices that are suitable for various applications. In general, mesoscopic TiO2 films are often used as photoanodes in DSCs; however, significant effort has been put into the development of NiO photocathodes with the long-term goal of tandem DSCs for high-voltage output. In this study, we report the preparation of mesoscopic NiO films via electrochemical anodization of Ni foil and their application as photocathodes in p-type DSCs. The anodic NiO had a mesoporous structure composed of ∼10 nm nanoparticles, and to the best of our knowledge, this was the first demonstration of mesoscopic NiO synthesis by anodic oxidation. The performance of the anodic photocathodes was comparable to that of conventional NiO electrodes comprising 20 nm-sized particles, even though the preparation of the anodic oxide film was significantly easier. Additionally, charge transfer kinetics in the NiO films were compared with those in conventional photocathodes using electrochemical impedance analyses, and the feasibility of the anodic NiO photocathodes in tandem DSCs was also demonstrated.
URI
https://pr.ibs.re.kr/handle/8788114/5435
ISSN
2574-0962
Appears in Collections:
Center for Nanoparticle Research(나노입자 연구단) > Journal Papers (저널논문)
Files in This Item:
10. Electrochemically Synthesized Mesoscopic Nickel Oxide Films as Photocathodes for Dye-Sensitized Solar Cells.pdfDownload

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