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| Type |
Symposium |
| Area |
[KCS-GDCh Joint Symposium] Recent International Trends in Spectroscopic and Computational Chemistry |
| Room No. |
Room 324A |
| Time |
FRI 15:00-: |
| Code |
PHYS3-2 |
| Subject |
Photoinduced mobile-carrier dynamics in semiconductors |
| Authors |
JaeHong Park
Department of Molecular Engineering, Kyoto University, Japan |
| Abstract |
For semiconductors in molecular optoelectronic applications, photoinduced generation and recombination dynamics of free-carriers (mobile electrons and holes) are the key process of the device operation. To probe this dynamics, various spectroscopic and electrical techniques have been utilized. In this presentation, I will discuss photoinduced carrier-dynamics probed by flash-photolysis time-resolved microwave conductivity (fp-TRMC) experiments, which are visible-pump/microwave probe spectroscopic measurements. First, my presentation will introduce free-carrier dynamics in various organic and inorganic systems studied by fp-TRMC. This study highlights the unique features of fp-TRMC such as electrode-less and non-invasive measurements and extremely high sensitivity that suppresses many-body interactions. Second, my presentation will discuss the exciton/carrier dynamics studies of complementary fp-TRMC and pump-probe transient absorption spectroscopy in solid-state organic systems where new photophysical phenomena relevant carrier-generation and recombination processes were identified.
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| E-mail |
j.park@moleng.kyoto-u.ac.jp |
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122nd General Meeting of the KCS