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   Articles with "persistent photoconductivity" as a keyword



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Concentration of defects responsible for persistent photoconductivity in Cu(In,Ga)Se2: Dependence on material composition

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recommendations! Published in 2019 at "Thin Solid Films"

DOI: 10.1016/j.tsf.2018.11.038

Abstract: Abstract Persistent photoconductivity (PPC) in thin Cu(In,Ga)Se2 films is discussed within a model of relaxing defects acting as donors or acceptors depending on their configurational and charge state. The aim of this work is to… read more here.

Keywords: persistent photoconductivity; defects responsible; concentration defects; se2 ... See more keywords
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Spatially Resolved Persistent Photoconductivity in MoS2-WS2 Lateral Heterostructures.

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recommendations! Published in 2020 at "ACS nano"

DOI: 10.1021/acsnano.0c06745

Abstract: The optical and electronic properties of 2D semiconductors are intrinsically linked via the strong interactions between optically excited bound species and free carriers. Here we use near-field scanning microwave microscopy (SMM) to image spatial variations… read more here.

Keywords: persistent photoconductivity; photoconductivity mos2; photoconductivity; mos2 ws2 ... See more keywords
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Tuning the charge states in InAs/GaSb or InAs/GaInSb composite quantum wells by persistent photoconductivity

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recommendations! Published in 2017 at "AIP Advances"

DOI: 10.1063/1.4993894

Abstract: We have experimentally studied the persistent photoconductivity (PPC) in inverted InAs/GaSb and InAs/GaInSb quantum wells, which can be tuned into a bulk-insulating state by electron-hole hybridization. Specifically we tune the bulk band structure and carriers… read more here.

Keywords: inas gainsb; persistent photoconductivity; inas gasb; gasb inas ... See more keywords
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Suppression of persistent photoconductivity in high gain Ga2O3 Schottky photodetectors

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recommendations! Published in 2021 at "Chinese Physics B"

DOI: 10.1088/1674-1056/ac2d1b

Abstract: The defect-related photoconductivity gain and persistent photoconductivity (PPC) observed in Ga2O3 Schottky photodetectors lead to a contradiction between high responsivity and fast recovery speed. In this work, a metal–semiconductor–metal (MSM) Schottky photodetector, a unidirectional Schottky… read more here.

Keywords: high gain; ga2o3 schottky; gain; persistent photoconductivity ... See more keywords
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Dependence of the Magnitude of Persistent Photoconductivity on Sodium Content in Cu(In,Ga)Se2 Solar Cells and Thin Films

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recommendations! Published in 2020 at "IEEE Journal of Photovoltaics"

DOI: 10.1109/jphotov.2020.3014865

Abstract: The persistent photoconductivity (PPC), i.e., the metastable increase in hole concentration due to light soaking in Cu-poor Cu(In0.7,Ga0.3)Se2 solar cells is observed to be proportional to the Na concentration in the absorber layer. Hole concentration… read more here.

Keywords: sub sub; sub; solar cells; persistent photoconductivity ... See more keywords