The DOI matches its Crossref record; 3 of the 3 references it cites were found in a registry or an index.
Mechanisms of Photoconductivity in Atomically Thin MoS2
Open accessAbstract
Atomically thin transition metal dichalcogenides have emerged as promising candidates for sensitive photodetection. Here, we report a photoconductivity study of biased mono- and bilayer molybdenum disulfide field-effect transistors. We identify photovoltaic and photoconductive effects, which both show strong photogain. The photovoltaic effect is described as a shift in transistor threshold voltage due to charge transfer from the channel to nearby molecules, including SiO2 surface-bound water. The photoconductive effect is attributed to the trapping of carriers in band tail states in the molybdenum disulfide itself. A simple model is presented that reproduces our experimental observations, such as the dependence on incident optical power and gate voltage. Our findings offer design and engineering strategies for atomically thin molybdenum disulfide photodetectors, and we anticipate that the results are generalizable to other transition metal dichalcogenides as well.
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Cites
Electric Field Effect in Atomically Thin Carbon Films
Novoselov, K. S., Geim, A. K., Morozov, S. V., Jiang, D., Zhang, Y., Dubonos, S. V., Grigorieva, I. V., & Firsov, A. A. (2004) · Science · doi:10.1126/science.1102896 · Cited by 66,834
Graphene photodetectors for high-speed optical communications
Mueller, T., Xia, F., & Avouris, P. (2010) · Nature Photonics · doi:10.1038/nphoton.2010.40 · Cited by 2,474
Self-citationEchtermeyer, T. J., Nene, P. S., Trushin, M., Gorbachev, R. V., Eiden, A. L., Milana, S., Sun, Z., Schliemann, J., Lidorikis, E., Novoselov, K. S., et al. (2014) · Nano Letters · doi:10.1021/nl5004762 · Cited by 188
Cited by
Photonics and optoelectronics of 2D semiconductor transition metal dichalcogenides
Mak, K. F., & Shan, J. (2016) · Nature Photonics · doi:10.1038/nphoton.2015.282 · Cited by 3,819
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
Silicon/2D-material photodetectors: from near-infrared to mid-infrared
Liu, C., Guo, J., Yu, L., Li, J., Zhang, M., Li, H., Shi, Y., & Dai, D. (2021) · Light: Science & Applications · doi:10.1038/s41377-021-00551-4 · Cited by 473
Samadi, M., Sarikhani, N., Zirak, M., Zhang, H., Zhang, H.-L., & Moshfegh, A. Z. (2018) · Nanoscale Horizons · doi:10.1039/c7nh00137a · Cited by 408
Flexible Photodetectors Based on Novel Functional Materials
Xie, C., & Yan, F. (2017) · Small · doi:10.1002/smll.201701822 · Cited by 359
Metadata
- Authors
- Furchi, M. M., Polyushkin, D. K., Pospischil, A., & Mueller, T.
- Venue
- Nano Letters
- Publisher
- American Chemical Society (ACS)
- Published
- 2014-10-13
- Volume
- 14
- Issue
- 11
- Pages
- 6165-6170
- ISSN
- 1530-6984 (ISSN-L)
- 1530-6992
- OpenAlex
- W1981940044
- Cited by
- 673
- References
- 3
- FWCI
- 21.00
- Type
- journal article
- Language
- en
- Open access
- green
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