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High quality AlGaN materials used in the DBR structure of ultraviolet detector are grown under different growth conditions. The structure, composition and photographic characteristics are determined by XRD, SEM and AFM. The influence of the growth conditions on the characteristics of the AlGaN materials are discussed.The good performance of the DBR structure of ultraviolet detector is obtained.
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Keywords:
- AlGaN /
- DBR /
- ultraviolet detector /
- MOCVD
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