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30 March 2020 THz spectroscopy of MXenes: promise for applications ranging from electromagnetic interference shielding to conductive electrodes (Conference Presentation)
Lyubov V. Titova, Guangjiang Li, Teng Shi, Varun Natu, Naaman Amer, Shuohan Huang, Hassan Hafez, Frank Hegmann, Dmitry Turchinovich, Vadym Mochalin, Michel Barsoum
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Proceedings Volume 11348, Terahertz Photonics; 113480Y (2020) https://doi.org/10.1117/12.2559696
Event: SPIE Photonics Europe, 2020, Online Only
Abstract
MXenes are 2D transition metal carbides and nitrides with electronic properties that can be tuned by their chemistry and structure. Three members of MXene family, Ti3C2Tz , Mo2Ti2C3Tz and Mo2TiC2Tz are all intrinsically metallic, with high intrinsic free carrier densities and high carrier mobility within individual nanosheets. However, they respond to photoexcitation in dramatically different ways: while photoexcitation suppresses conductivity in Ti3C2Tz, it results in a long-lived positive photoconductivity in both Mo2Ti2C3Tz and Mo2TiC2Tz. Those responses suggest applications of MXenes in a variety of electro-optical and THz devices.
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Lyubov V. Titova, Guangjiang Li, Teng Shi, Varun Natu, Naaman Amer, Shuohan Huang, Hassan Hafez, Frank Hegmann, Dmitry Turchinovich, Vadym Mochalin, and Michel Barsoum "THz spectroscopy of MXenes: promise for applications ranging from electromagnetic interference shielding to conductive electrodes (Conference Presentation)", Proc. SPIE 11348, Terahertz Photonics, 113480Y (30 March 2020); https://doi.org/10.1117/12.2559696
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KEYWORDS
Terahertz radiation
Electromagnetic interference
Electrodes
Spectroscopy
Annealing
Chemistry
Sensors
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