Enhancing Solar-Blind Photodetectors with Ga2O3 Thin Films Using Pt Nanoparticles
Source abstract
Abstract
Due to their ultra-wide bandgap and brilliant chemical stability, gallium oxide (Ga 2 O 3 ) is considered one of the most promising materials for solar-blind photodetectors. However, the preparation of high-performance solar-blind photodetectors based on a low-cost Ga 2 O 3 thin film still remains a great challenge. In this work, β-Ga 2 O 3 thin films with nanoscale thickness have been prepared on a sapphire substrate by a facile and effective sol–gel spin-coating method. At the same time, the effect of local surface plasmon resonance (LSPR) is introduced by fabrication of Pt nanoparticles (NPs) in order to improve the optoelectronic performance of photodetectors based on polycrystalline Ga 2 O 3 . By adding Pt NPs, significant performance enhancement has been observed in terms of on/off ratio, responsiveness, detectivity, and external quantum efficiency by 618.7%, 66.7%, 390.7%, and 266.7%, respectively, reaching a comparable level to certain single-crystalline devices.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Ga2O3 and related materials · ZnO doping and properties · Advanced Photocatalysis Techniques
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Institute of Hybrid Materials, National Center of International Research for Hybrid Materials Technology, National Base of International Science & Technology Cooperation, College of Materials Science and Engineering, Qingdao University, Qingdao 266071, P. R. China
Funding
Department of Education of Shandong Province · China Postdoctoral Science Foundation · National Natural Science Foundation of China · Natural Science Foundation of Shandong Province · Higher Education Discipline Innovation Project · State Key Project of International Cooperation Research · High Level Discipline Program of Shandong Province
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