Browsing by Author "Lin, J. M."

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Negative and positive electroluminescence from a compensated p-type germanium in terahertz frequencies
(2007-12-10)
Chung, P. K.
;
Lin, J. M.
;
Yen, S. T.
;
Wang, T. H.
;
電子工程學系及電子研究所
Negative luminescence (NL) and positive luminescence in terahertz frequencies were observed from a compensated p-type Ge under various levels of pulse excitations at cryogenic temperatures. The NL spectra accompanying an S-type negative differential resistance phenomenon were attributed to the reduced emission transitions from the excited states to the ground states of the acceptors during the excitation. A possible excitation mechanism is also presented according to the measured data. (C) 2007 American Institute of Physics.