Journal
SURFACE SCIENCE
Volume 656, Issue -, Pages 43-47Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.susc.2016.09.006
Keywords
Synchrotron radiation; Laser; Photoemission spectroscopy
Categories
Funding
- Ministry of Education, Culture, Sports, Science and Technology of Japan (Photon and Quantum Basic Research Coordinated Development Program)
- JSPS KAKENHI Grant [26105008, 25600086, 20244042]
- Grants-in-Aid for Scientific Research [20244042, 25600086, 26105008, 26105001, 15K21719] Funding Source: KAKEN
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We developed a time-resolved photoemission spectroscopy system for tracking the temporal variation in an electronic state of a heated sample. Our pump-probe method used laser and synchrotron radiation pulses on a silicon surface that was heated by a synchronized pulse current that did not interfere with the measurements. The transient surface photovoltage effect on the Si 2p core spectra was measured from room temperature to 880 degrees C and was found to be consistent with the thermal carrier distributions in silicon crystals at the corresponding temperatures. This versatile technique may have applications studying molecular dynamics on high temperature surfaces such as in catalytic reactions.
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