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Realization of BaZrS3 chalcogenide perovskite thin films for optoelectronics
Wei, XC; Hui, HL; Zhao, C; Deng, CH; Han, MJ; Yu, ZH; Sheng, A; Roy, P; Chen, AP; Lin, JH; Watson, DF; Sun, YY; Thomay, T; Yang, S; Jia, QX; Zhang, SB; Zeng, H
2020-02-01
Source PublicationNANO ENERGY
ISSN2211-2855
SubtypeArticle
AbstractBaZrS3 is a prototypical chalcogenide perovskite, an emerging class of unconventional semiconductor. Recent results on powder samples reveal that it is a material with a direct band gap of 1.7-1.8 eV, a very strong light-matter interaction, and a high chemical stability. Due to the lack of quality thin films, however, many fundamental properties of chalcogenide perovskites remain unknown, hindering their applications in optoelectronics. Here we report the fabrication of BaZrS3 thin films, by sulfurization of oxide films deposited by pulsed laser deposition. We show that these films are n-type with carrier densities in the range of 10(19)-10(20) cm(-3). Depending on the processing temperature, the Hall mobility ranges from 2.1 to 13.7 cm(2)/Vs. The absorption coefficient is > 10(5) cm(-1) at photon energy >1.97 eV. Temperature dependent conductivity measurements suggest shallow donor levels. By assuring that BaZrS3 is a promising candidate, these results potentially unleash the family of chalcogenide perovskites for optoelectronics such as photodetectors, photovoltaics, and light emitting diodes.
DOI10.1016/j.nanoen.2019.104317
WOS KeywordHALIDE PEROVSKITES ; SULFIDES ; LENGTHS ; MULTIFERROICS ; SPECTRA ; SRZRS3 ; LIGHT
Language英语
WOS Research AreaChemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
PublisherELSEVIER
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Document Type期刊论文
Identifierhttp://ir.sic.ac.cn/handle/331005/28342
Collection中国科学院上海硅酸盐研究所
Recommended Citation
GB/T 7714
Wei, XC,Hui, HL,Zhao, C,et al. Realization of BaZrS3 chalcogenide perovskite thin films for optoelectronics[J]. NANO ENERGY,2020.
APA Wei, XC.,Hui, HL.,Zhao, C.,Deng, CH.,Han, MJ.,...&Zeng, H.(2020).Realization of BaZrS3 chalcogenide perovskite thin films for optoelectronics.NANO ENERGY.
MLA Wei, XC,et al."Realization of BaZrS3 chalcogenide perovskite thin films for optoelectronics".NANO ENERGY (2020).
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