Self-heating Characteristics of Mo Electrodes and MoS2 FET Using IR Thermal Imaging Microscope

Gwanmu Lee, Junhong Na, Dongseok Suh

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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.

Original languageEnglish
Pages (from-to)502-505
Number of pages4
JournalJournal of the Korean Physical Society
Issue number6
StatePublished - 1 Mar 2020

Bibliographical note

Funding Information:
This work was supported by the Global Research & Development Center Program through the NRF funded by the Ministry of Science and ICT (Grant No. 2018K1A4A3A01064272), and also was supported by the Korea Electric Power Corporation (No. R18XA06-54), Republic of Korea.

Publisher Copyright:
© 2020, The Korean Physical Society.


  • Infrared thermal imaging
  • Joule heating
  • Molybdenum disulfide
  • Self-heating


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