Wafer-Scale Production of Two-Dimensional Tin Monoselenide: Expandable Synthetic Platform for van der Waals Semiconductor-Based Broadband Photodetectors
- Authors
- Jo, H.-K.[Jo, H.-K.]; Kim, J.[Kim, J.]; Lim, Y.R.[Lim, Y.R.]; Shin, S.[Shin, S.]; Song, D.S.[Song, D.S.]; Bae, G.[Bae, G.]; Kwon, Y.M.[Kwon, Y.M.]; Jang, M.[Jang, M.]; Yim, S.[Yim, S.]; Myung, S.[Myung, S.]; Lee, S.S.[Lee, S.S.]; Kim, C.G.[Kim, C.G.]; Kim, K.K.[Kim, K.K.]; Lim, J.[Lim, J.]; Song, W.[Song, W.]
- Issue Date
- 24-Jan-2023
- Publisher
- American Chemical Society
- Keywords
- air stability; broadband photodetectors; single source precursor; tin monoselenide; wafer-scale synthesis
- Citation
- ACS Nano, v.17, no.2, pp.1372 - 1380
- Indexed
- SCIE
SCOPUS
- Journal Title
- ACS Nano
- Volume
- 17
- Number
- 2
- Start Page
- 1372
- End Page
- 1380
- URI
- https://scholarworks.bwise.kr/skku/handle/2021.sw.skku/105276
- DOI
- 10.1021/acsnano.2c09854
- ISSN
- 1936-0851
- Abstract
- A synthetic platform for industrially applicable two-dimensional (2D) semiconductors that addresses the paramount issues associated with large-scale production, wide-range photosensitive materials, and oxidative stability has not yet been developed. In this study, we attained the 6 in. scale production of 2D SnSe semiconductors with spatial homogeneity using a rational synthetic platform based on the thermal decomposition of solution-processed single-source precursors. The long-range structural and chemical homogeneities of the 2D SnSe layers are manifested using comprehensive spectroscopic analyses. Furthermore, the capability of the SnSe-based photodetectors for broadband photodetection is distinctly verified. The photoresponsivity and detectivity of the SnSe-based photodetectors are 5.89 A W-1 and 1.8 × 1011 Jones at 532 nm, 1.2 A W-1 and 3.7 × 1010 Jones at 1064 nm, and 0.14 A W-1 and 4.3 × 109 Jones at 1550 nm, respectively. The minimum rise times for the 532 and 1064 nm lasers are 62 and 374 μs, respectively. The photoelectrical analysis of the 5 × 5 SnSe-based photodetector array reveals 100% active devices with 95.06% photocurrent uniformity. We unequivocally validated that the air and thermal stabilities of the photocurrent yielded from the SnSe-based photodetector are determined to be >30 d in air and 160 °C, respectively, which are suitable for optoelectronic applications. © 2023 American Chemical Society.
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Collections - Graduate School > Energy Science > 1. Journal Articles
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