期刊
NANOMATERIALS
卷 12, 期 5, 页码 -出版社
MDPI
DOI: 10.3390/nano12050884
关键词
vacuum flat panel detector; ZnS photoconductor; ZnO nanowires; cold cathode
类别
资金
- Science and Technology Department of Guangdong Province [2020B0101020002]
- National Key Research and Development Program of China [2016YFA0202000]
- Fundamental Research Funds for the Central Universities
This paper investigates the feasibility of using cold cathode vacuum flat panel detectors for imaging applications. By fabricating a pixel array made of ZnS photoconductor and ZnO nanowires cold cathode, we successfully achieved imaging of patterned objects.
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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