Title :
Thickness and substrate dependence of THz modulation efficiency in organic/inorganic semiconductor structures
Author :
Yoo, Hyung Keun ; Yoon, Youngwoon ; Kang, Chul ; Lee, Kiejin ; Kee, Chul-Sik ; Lee, Joong Wook
Author_Institution :
Dept. of Phys., Sogang Univ., Seoul, South Korea
Abstract :
We report on the thickness dependence of THz modulation efficiency in an organic phthalocyanine (CuPc) film on a Si wafer. The modulation efficiency is also associated with the inorganic semiconductor substrate. This finding confirms that the THz modulation is caused by the injected carriers, excited by optical excitation, into the CuPc film.
Keywords :
organic semiconductors; semiconductor thin films; terahertz wave spectra; Si; THz modulation; injected carriers; optical excitation; organic phthalocyanine film; organic-inorganic semiconductor structures; substrate dependence; thickness dependence; Modulation; Optical attenuators; Optical films; Optical pulses; Silicon; Substrates;
Conference_Titel :
Infrared, Millimeter and Terahertz Waves (IRMMW-THz), 2011 36th International Conference on
Conference_Location :
Houston, TX
Print_ISBN :
978-1-4577-0510-6
Electronic_ISBN :
2162-2027
DOI :
10.1109/irmmw-THz.2011.6104756
