The 64th JSAP Spring Meeting, 2017

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12 Organic Molecules and Bioelectronics » 12.5 Organic solar cells

[17a-303-1~16] 12.5 Organic solar cells

Fri. Mar 17, 2017 9:00 AM - 1:30 PM 303 (303)

Takaya Kubo(Univ. of Tokyo), Masashi Ikegami(Toin Univ. of Yokohama), Hajime Shirai(Saitama Univ.)

9:45 AM - 10:00 AM

[17a-303-4] Deplete excitation ? of defects states in TiO2 nano particles
observed using PEEM and fs laser

Bochao Li1, Hao Li1, Boyu Ji1, Jinquang Lin1, Tomoaki Ishitsuka2, 〇Toshihisa Tomie1,2 (1.CUST, 2.AIST)

Keywords:TiO2, defects state, PEEM

TiO2 on si wafer was observed by PEEM with pump-and-probe. When fundamental wavelength laser and second harmonic laser are irradiated at the same time, particle brightness was enhanced. The enhancement decreased when fundamental laser power was increased. This ca be explained by deppletion of defects states which supply electrons.