期刊
APPLIED PHYSICS EXPRESS
卷 16, 期 2, 页码 -出版社
IOP Publishing Ltd
DOI: 10.35848/1882-0786/acb98c
关键词
deep-ultraviolet photodetectors; pulsed laser deposition; thin films; ultra-wide band gap semiconductor; ZnGa2O4
Due to its ultra-wideband gap, high transmittance in the UV region, and excellent environmental stability, zinc gallium oxide (ZnGa2O4) has gained significant interest in deep-ultraviolet photodetectors. ZnGa2O4 thin film was fabricated on different substrates using pulsed laser deposition and post-annealing under an oxygen atmosphere. The choice of substrates has a significant impact on the morphology, structure, and crystal quality of the thin film. After annealing, the thin film quality was improved. The metal-semiconductor-metal photodetector exhibited excellent reproducible characteristics and fast response performance, indicating great potential in next-generation optoelectronic devices.
Due to the ultra-wideband gap, high transmittance in the ultraviolet (UV) region, and excellent environmental stability, zinc gallium oxide (ZnGa2O4) has attracted considerable interest in deep-ultraviolet photodetectors. Here, ZnGa2O4 thin film was fabricated on different substrates by pulsed laser deposition with a post-annealing process under an oxygen atmosphere. It is found that the substrates have a great impact on the morphology, structure, and crystal quality of thin film. After annealing, the thin film quality has been improved. The metal-semiconductor-metal photodetector shows excellent reproducible characteristics and fast response performance, which demonstrates great potential in next-generation optoelectronic devices.
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