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- W3127175787 abstract "The effects of different ammonium sulfide [(NH4)2Sx]-based treatments on the surface passivation of dry-etched and thermally recovered GaN epilayer have been investigated. A two-step treatment using HCl followed by the mixture of (NH4)2Sx and isopropyl alcohol demonstrated a more effective removal of intrinsic oxide layer and formation of sulfide passivation. The compensating centers on both the p- and n+-type GaN surfaces were significantly reduced. The fabricated base-floating GaN/Al0.1GaN heterojunction phototransistors (HPTs) with the surface passivation showed improved I–V and enhanced optical gain due to the effective suppression of surface recombination current. A maximum gain of 1.3 × 105 was obtained at 5 V bias in the HPTs using the two-step treatment." @default.
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- W3127175787 date "2021-01-28" @default.
- W3127175787 modified "2023-10-16" @default.
- W3127175787 title "Efficient surface passivation using two-step ammonium sulfide based treatment for GaN/AlGaN heterojunction phototransistors" @default.
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- W3127175787 doi "https://doi.org/10.1063/5.0034922" @default.
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