Self-heating Characteristics of Mo Electrodes and MoS2 FET Using IR Thermal Imaging Microscope
Abstract
In this study, the static and transient thermal characteristics of molybdenum electrodes induced by self-heating process are reported. The corresponding local temperatures of the electrodes were measured using an infrared thermal imaging microscope system. Maximum temperature is observed to increase (80 {260 °C depending on the width of the electrode) at the narrow region of the electrodes. In addition, the measured temperature was linearly proportional to the applied power per unit width. The transient thermal measurement performed in the range between 10 Hz and 100 kHz has shown that the temperature fluctuation begins to decrease at 1 kHz and saturate to a certain level. In addition, the self-heating effect on an atomically-thin two-dimensional molybdenum disulfide field-effect transistor operating in ambient conditions was also observed.
- Publication:
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Journal of Korean Physical Society
- Pub Date:
- March 2020
- DOI:
- 10.3938/jkps.76.502
- Bibcode:
- 2020JKPS...76..502L
- Keywords:
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- Self-heating;
- Joule heating;
- Infrared thermal imaging;
- Molybdenum disulfide