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Transparent conducting oxides SrNbO3 thin film with record high figure of merit

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Title
Transparent conducting oxides SrNbO3 thin film with record high figure of merit
Author(s)
Jihwan Jeong; Kang, Baekjune; Jeongkuen Song; Lee, Sangmin; Choong H. Kim; Choi, Uksam; Eun Kyo Ko; Jong Hwa Lee; Lee, Hyoung-Taek; Park, Hyeong-Ryeol; Ji Hye Lee; Kim, Miyoung; Tae Won Noh; Sohn, Changhee
Publication Date
2024-09
Journal
Journal of the European Ceramic Society, v.44, no.11, pp.6764 - 6770
Publisher
Elsevier BV
Abstract
Transparent conducting oxides are crucial in the field of optoelectronics, and SrNbO3 has emerged as a promising candidate because it can outperform commonly used indium tin oxides due to its novel functionality. However, experimental investigations of SrNbO3 are challenging because it undergoes topotactic phase transition to exhibit insulating behavior. Here, we investigate the pivotal role of SrNbO3 stoichiometry to enhance its performance as a transparent conducting oxide. Results indicate the optoelectronic properties of SrNbO3 are highly dependent on its intrinsic lattice parameters and stoichiometry. Films with lattice parameters close to those of pure SrNbO3 exhibit excellent conductivity and transmittance in the visible range, while off-stoichiometry diminishes optoelectronic properties. Our stoichiometric sample demonstrates a record-high figure of merit for SrNbO3, considerably surpassing that of indium tin oxide by an order of magnitude. Thus, this study paves the way for production of high-quality SrNbO3 and leveraging its novel functionalities in optoelectronic applications.
URI
https://pr.ibs.re.kr/handle/8788114/15191
DOI
10.1016/j.jeurceramsoc.2024.04.050
ISSN
0955-2219
Appears in Collections:
Center for Correlated Electron Systems(강상관계 물질 연구단) > 1. Journal Papers (저널논문)
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