Abstract
We investigated the use of transparent conductive oxide for near-ultraviolet light-emitting diodes based on co-sputtered gallium oxide (Ga2O3) and indium tin oxide (ITO). The electrical and optical properties of Ga2O3/ITO (IGTO) were observed to improve through hydrogen annealing, which resulted in a sheet resistance of 164 Ω/□ and an optical transmittance of 94% at increased carrier concentration and crystallization of the co-sputtered film through hydrogen annealing. Moreover, ohmic-like contacts were formed on the p-GaN substrate with a specific contact resistance of 3.9 × 10−1 Ω cm2.
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Schedule a callMore From: Physica Status Solidi A-applications and Materials Science
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