Negative and positive electroluminescence from a compensated p -type germanium in terahertz frequencies

P. K. Chung; J. M. Lin; S. T. Yen; T. H. Wang

doi:10.1063/1.2824577

Negative and positive electroluminescence from a compensated p -type germanium in terahertz frequencies

P. K. Chung^*, J. M. Lin, S. T. Yen, T. H. Wang

^*Corresponding author for this work

Department of Electronics Engineering

Research output: Contribution to journal › Article › peer-review

1 Scopus citations

Abstract

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.

Original language	English
Article number	241106
Journal	Applied Physics Letters
Volume	91
Issue number	24
DOIs	https://doi.org/10.1063/1.2824577
State	Published - 20 Dec 2007

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title = "Negative and positive electroluminescence from a compensated p -type germanium in terahertz frequencies",

abstract = "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.",

author = "Chung, {P. K.} and Lin, {J. M.} and Yen, {S. T.} and Wang, {T. H.}",

year = "2007",

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AU - Chung, P. K.

AU - Lin, J. M.

AU - Yen, S. T.

AU - Wang, T. H.

PY - 2007/12/20

Y1 - 2007/12/20

N2 - 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.

AB - 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.

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