Hu Delin, Bai Xingpeng, Wang Chengyun, Zhang Zhipeng, Li Xiaojie, Zhang Guofu, Deng Shaozhi, Chen Jun
State Key Laboratory of Optoelectronic Materials and Technologies, Guangdong Province Key Laboratory of Display Material and Technology, School of Electronics and Information Technology, Sun Yat-sen University, Guangzhou 510275, China.
Nanomaterials (Basel). 2022 Mar 7;12(5):884. doi: 10.3390/nano12050884.
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 × 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.
采用冷阴极的真空平板探测器（VFPDs）在大面积光电探测中具有重要应用。基于电子轰击诱导光电导（EBIPC）机制，光电导型VFPDs实现了高探测灵敏度。然而，尚未开发出像素化成像器件。在本文中，我们制造了一种由ZnS光电导体和ZnO纳米线冷阴极制成的4×7像素真空平板探测器阵列，用于成像应用。研究了该器件的响应度和像素电流均匀性，并实现了图案化物体的成像。我们的结果验证了VFPDs用于成像的可行性。
