A Photo-Initiated Self-Sustaining Conduction State in Semi-Insulating GaAs

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A Photo-Initiated Self-Sustaining Conduction State in Semi-Insulating GaAs

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dc.creator Jiang, Chun
dc.date.available 2011-02-19T00:25:41Z en_US
dc.date.issued 1984-05 en_US
dc.identifier.uri http://hdl.handle.net/2346/21580 en_US
dc.description.abstract High power switching using GaAs:Cr and undoped GaAs initiated by 1.06 micrometer YAG laser and 0.5 micrometer DYE laser at liquid nitrogen temperature was demonstrated. Some unusual properties of photoconductivity, such as the negative differential motility and the change of the relaxation time of the induced carriers due to the different intensity of light injection, have been investigated. For field strength above 20 kv/cm a self-sustaining conduction state was observed, following the photoconductive current pulse with a delay of 1-UOO ns. Various features of this second signal are presented. In order to understand the mechanism responsible for the self-sustaining conduction state, a heating model was investigated analytically and found to be inadequate. Possible mechanisms are discussed. en_US
dc.language.iso en_US en_US
dc.publisher Texas Tech University en_US
dc.subject Semiconductors en_US
dc.subject Pulse techniques (Electronics) en_US
dc.subject Gallium arsenide en_US
dc.subject Photoconductivity en_US
dc.subject Semiconductor switches en_US
dc.title A Photo-Initiated Self-Sustaining Conduction State in Semi-Insulating GaAs en_US
dc.type Electronic Thesis en_US
thesis.degree.department Accounting and Information Systems
dc.degree.department Accounting and Information Systems en_US
dc.degree.discipline Accounting and Information Systems en_US
dc.degree.grantor Texas Tech University en_US
dc.degree.level Masters en_US
dc.degree.name M.S. en_US
dc.rights.availability unrestricted en_US

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