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Special Issue: Advances in Functional Materials; Guest Editors: Xiaoping Li, Li Lu, Jiangping Tu, Xinbin Zhao and Tiejun ZhuNo Access

INVESTIGATION ON HETEROSTRUCTURAL OPTOELECTRONIC SWITCHES

    https://doi.org/10.1142/S0218625X08011123Cited by:0 (Source: Crossref)

    GaAs/InGaP and AlGaAs/GaAs/InAlGaP npn heterostructural optoelectronic switches (HSOSs) have been fabricated to demonstrate the bulk-barrier and potential-spike height effects on the switching. It is seen that the illumination decreases the switching voltage VS and increases the switching current IS in the GaAs/InGaP HSOS characteristics. But in the AlGaAs/GaAs/InAlGaP HSOS, the VS and IS present contrary trends. These characteristic variation differences in the two HSOSs are mainly due to the photogenerated carriers that affect the bulk-barrier and potential-spike heights.