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Dr.Kyuwook Ihm 学术报告通知
2012-10-24 10:06   审核人:

报告题目:Electrical phase transition of poly(4,4’-aminotriphenylene hexafluoroisopropylidenediphthalimide) by photogenerated charged carrier injection

报告人:Dr.Kyuwook Ihm, experimental condensed matter physics, Pohang University of Science and Technology, Korea

地点:公字楼328

报告时间:2012年10月25日 19:00

 

报告内容:We show a novel set-up of poly(4,4’-aminotriphenylene hexafluoroisopropylidenediphthalimide) (6F-TPA PI)/Al sample in which holes are injected by photoelectron emission process instead of direct charge carrier injection via metal electrode. In this process, an irreversible electrical phase transition of 6F-TPA PI is found in contrast to the Al/6F-TPA PI/Al structure, leading to a write-once-read-many behavior. The photoelectron spectroscopy results measured before and after the switching process revealed that the irreversible electrical  phase transition of 6F-TPA PI is attributed to the chemical modification of the carbonyl group in phthalimide moiety.

 

Dr.Kyuwook Ihm个人简介:

Experience:

•     2001.05 ~ at present: Senior scientist at 4B1 PES II beamline, Beamline research division at Pohang Accelerator Laboratory

•     2000.02 ~ 2001.05: Simulation of physical properties of the transistors for Static-RAM at Semiconductor research center, SAMSUNG Electronics.

•     2003.06 ~ 2003.11: Visiting scientist at Nanospectroscopy Beamline in Elettra (Italy)

Education

•     Ph.D. 2009 (Physics), in experimental condensed matter physics, POSTECH, Korea

Advisor: Prof. Sukmin Chung

Dissertation topic: Study on adsorption characteristics and thermodynamic behaviors of the molecules with sp2 hybrid orbitals on inorganic surfaces

•     M.S. 2000 (Physics), Sung Kyun Kwan University, Korea

Solid state physics and band structure of materials.

•     B.S. 1998 (Physics), Sung Kyun Kwan University, Korea

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