Pixelated Vacuum Flat Panel Detector Using ZnS Photoconductor and ZnO Nanowires Cold Cathode

被引：0
|
作者：
Hu, Delin [1 ]
Bai, Xingpeng [1 ]
Wang, Chengyun [1 ]
Zhang, Zhipeng [1 ]
Li, Xiaojie [1 ]
Zhang, Guofu [1 ]
Deng, Shaozhi [1 ]
Chen, Jun [1 ]
机构：
[1] Sun Yat Sen Univ, Sch Elect & Informat Technol, State Key Lab Optoelect Mat & Technol, Guangdong Prov Key Lab Display Mat & Technol, Guangzhou 510275, Peoples R China
来源：
NANOMATERIALS | 2022年 / 12卷 / 05期
关键词：
vacuum flat panel detector; ZnS photoconductor; ZnO nanowires; cold cathode; BOMBARDMENT-INDUCED PHOTOCONDUCTIVITY; X-RAY-DETECTORS; IMAGE SENSOR; HIGH-GAIN; CDTE;
D O I：
10.3390/nano12050884
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Vacuum flat panel detectors (VFPDs) using cold cathode have important applications in large-area photoelectric detection. Based on the electron-bombardment-induced photoconductivity (EBIPC) mechanism, the photoconductor-type VFPDs achieved high detection sensitivity. However, pixelated imaging devices have not yet been developed. In this paper, we fabricate a 4 x 7 pixel vacuum flat panel detector array made of ZnS photoconductor and ZnO nanowires cold cathode for an imaging application. The responsivity of the device and the pixel current uniformity are studied, and imaging of the patterned objects is achieved. Our results verify the feasibility of VFPDs for imaging.
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页数：10
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