Optics and Precision Engineering, Volume. 32, Issue 5, 643(2024)
Fabrications and characteristics of Ga-doped ZnO microrods ultraviolet photodetectors
Figures & Tables(10)
Fig. 2. XRD patterns of ZnO∶Ga microrods with different Ga doping concentrations
Fig. 3. SEM images of ZnO∶Ga microrods with different Ga doping concentrations and EDS pattern of ZnO∶Ga microrods with 1% Ga doping
Fig. 5.
Fig. 6.
Fig. 7. One typical response-decay period of ZnO∶Ga microrods UV photodetectors with different Ga doping concentrations
Table 1. Position of 2
θ angle of main diffraction peaks for ZnO∶Ga microrods with different Ga doping concentrationsView tableView in ArticleTable 1. Position of 2
θ angle of main diffraction peaks for ZnO∶Ga microrods with different Ga doping concentrationsGa掺杂
浓度/%
2θ/(°) （100） （002） （101） 0 31.74 34.40 36.24 0.5 31.72 34.40 36.22 1 31.76 34.42 36.26 2 31.74 34.42 36.24 4 31.76 34.42 36.24
Table 2. Performance parameters of ZnO∶Ga microrods UV photodetectors with different Ga doping concentrations
View tableView in ArticleTable 2. Performance parameters of ZnO∶Ga microrods UV photodetectors with different Ga doping concentrations
Ga掺杂
浓度/%
光电流（5 V）
/μA
响应度（5 V）
/（A·W-1）
增益
（5 V）
比探测率
（5 V）/Jones
响应时间/s 衰减时间/s 0 13.56 0.53 1.80 2.94×1011 52.9 60.7 0.5 7.18 0.28 0.95 7.84×1011 42.1 48.4 1 105.55 13.13 44.63 3.31×1012 12.3 36.4 2 15.18 0.59 2.01 2.07×1012 41.0 42.9 4 31.55 1.23 4.19 5.92×1012 51.6 84.4
Table 3. Comparison of main performance parameters among 1% Ga-dopted ZnO∶Ga microrods UV photodetector and several metal-doped ZnO UV photodetectors reported in recent works
View tableView in ArticleTable 3. Comparison of main performance parameters among 1% Ga-dopted ZnO∶Ga microrods UV photodetector and several metal-doped ZnO UV photodetectors reported in recent works
光敏材料 响应度/（A·W-1） 比探测率/Jones 响应时间/s 衰减时间/s ZnO∶Al films［ 38 ］5.63 1.8×1012 30 36 ZnO∶Fe films［ 39 ］0.196 4.95×1010 - - ZnO∶Ga nanosheets［ 32 ］0.87 - 34 43 ZnO∶Ga nanorods［ 28 ］- - 29.75 89.67 ZnO∶Ga microrods 13.13 3.31×1012 12.3 36.4
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Zhaolin YUAN, Yongwei WU, Luyao YU, Jianfeng HE, Nengchang XU, Xueyuan WANG, Pengfei LU. Fabrications and characteristics of Ga-doped ZnO microrods ultraviolet photodetectors[J]. Optics and Precision Engineering, 2024, 32(5): 643
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Received: Aug. 2, 2023
Accepted: --
Published Online: Apr. 2, 2024
The Author Email: Zhaolin YUAN (yzlyx98@sina.com)
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