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20 May 2013 Angle-dependent carrier injection in copper phthalocyanine thin films
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Proceedings Volume 8879, Nano-Bio Sensing, Imaging, and Spectroscopy; 88790H (2013)
Event: Nano-Bio Sensing, Imaging and Spectroscopy, 2013, Jeju, Korea, Republic of
We present that the carrier concentration injected from a silicon substrate to a copper phthalocyanine thin film depends on the incidence angle of photoexciting beam. At higher incidence angles of photoexciting beam, the modulation efficiency of terahertz transmission due to TM-polarized excitation is distinctly higher than one due to TE-polarized excitation. We find that this phenomenon is due to the enhancement of carrier injection which is expected when the incident light is more transmitted through the organic thin film.
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Hyung Keun Yoo, Youngwoon Yoon, Hanju Lee, Kiejin Lee, Chul Kang, Chul-Sik Kee, and Joong Wook Lee "Angle-dependent carrier injection in copper phthalocyanine thin films", Proc. SPIE 8879, Nano-Bio Sensing, Imaging, and Spectroscopy, 88790H (20 May 2013);

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