Positive and Negative Photoconductivity in Monolayer MoS<sub>2</sub> as a Function of Physisorbed Oxygen
نویسندگان
چکیده
We investigate the effect of molecular oxygen on photoconductivity monolayer MoS2 via broad-band time-resolved terahertz spectroscopy. observe that MoS2...
منابع مشابه
Trion-induced negative photoconductivity in monolayer MoS2.
Optical excitation typically enhances electrical conduction and low-frequency radiation absorption in semiconductors. We, however, observe a pronounced transient decrease of conductivity in doped monolayer molybdenum disulfide (MoS(2)), a two-dimensional (2D) semiconductor, using ultrafast optical-pump terahertz-probe spectroscopy. In particular, the conductivity is reduced to only 30% of its e...
متن کاملTrion-Induced Negative Photoconductivity in Monolayer
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ژورنال
عنوان ژورنال: Journal of Physical Chemistry C
سال: 2021
ISSN: ['1932-7455', '1932-7447']
DOI: https://doi.org/10.1021/acs.jpcc.1c01550