The DOI matches its Crossref record; 1 of the 1 references it cites were found in a registry or an index.
Extraordinary Photoresponse in Two-Dimensional In2Se3 Nanosheets
Abstract
We demonstrate extraordinary photoconductive behavior in two-dimensional (2D) crystalline indium selenide (In2Se3) nanosheets. Photocurrent measurements reveal that semiconducting In2Se3 nanosheets have an extremely high response to visible light, exhibiting a photoresponsivity of 3.95 × 10(2) A·W(-1) at 300 nm with an external quantum efficiency greater than 1.63 × 10(5) % at 5 V bias. The key figures-of-merit exceed that of graphene and other 2D material-based photodetectors reported to date. In addition, the photodetector has a fast response time of 1.8 × 10(-2) s and a specific detectivity of 2.26 × 10(12) Jones. The photoconductive response of α-In2Se3 nanosheets extends into ultraviolet, visible, and near-infrared spectral regions. The high photocurrent response is attributed to the direct band gap (EG = 1.3 eV) of In2Se3 combined with a large surface-area-to-volume ratio and a self-terminated/native-oxide-free surface, which help to reduce carrier recombination while keeping fast response, allowing for real-time detection under very low-light conditions.
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Cites
Electronics and optoelectronics of two-dimensional transition metal dichalcogenides
Wang, Q. H., Kalantar-Zadeh, K., Kis, A., Coleman, J. N., & Strano, M. S. (2012) · Nature Nanotechnology · doi:10.1038/nnano.2012.193 · Cited by 16,374
Cited by
Photodetectors based on graphene, other two-dimensional materials and hybrid systems
Koppens, F. H. L., Mueller, T., Avouris, P., Ferrari, A. C., Vitiello, M. S., & Polini, M. (2014) · Nature Nanotechnology · doi:10.1038/nnano.2014.215 · Cited by 3,828
Photocurrent generation with two-dimensional van der Waals semiconductors
Buscema, M., Island, J. O., Groenendijk, D. J., Blanter, S. I., Steele, G. A., van der Zant, H. S. J., & Castellanos-Gomez, A. (2015) · Chemical Society Reviews · doi:10.1039/c5cs00106d · Cited by 1,051
Organic Photodiodes: The Future of Full Color Detection and Image Sensing
Jansen‐van Vuuren, R. D., Armin, A., Pandey, A. K., Burn, P. L., & Meredith, P. (2016) · Advanced Materials · doi:10.1002/adma.201505405 · Cited by 819
Self‐Powered Photodetectors Based on 2D Materials
Qiao, H., Huang, Z., Ren, X., Liu, S., Zhang, Y., Qi, X., & Zhang, H. (2020) · Advanced Optical Materials · doi:10.1002/adom.201900765 · Cited by 435
Xue, F., Hu, W., Lee, K., Lu, L., Zhang, J., Tang, H., Han, A., Hsu, W., Tu, S., Chang, W., et al. (2018) · Advanced Functional Materials · doi:10.1002/adfm.201803738 · Cited by 409
Metadata
- Authors
- Jacobs-Gedrim, R. B., Shanmugam, M., Jain, N., Durcan, C. A., Murphy, M. T., Murray, T. M., Matyi, R. J., Moore, R. L., & Yu, B.
- Venue
- ACS Nano
- Publisher
- American Chemical Society (ACS)
- Published
- 2013-12-24
- Volume
- 8
- Issue
- 1
- Pages
- 514-521
- ISSN
- 1936-0851 (ISSN-L)
- 1936-086X
- OpenAlex
- W2331767631
- Cited by
- 414
- References
- 1
- FWCI
- 10.21
- Type
- journal article
- Language
- en
- Open access
- closed
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