Ultraviolet photodetector based on NaTaO3/ZnO compo-site with enhanced photoelectric performance

• 作者: ZHAO Yun-fei ZHANG Min YANG Lin-yu ZHANG Jun WANG Zhao-jun
• 来源期刊: 光电子快报（英文版）
• 年，卷（期）: 2021,（2）
• 所属期刊栏目: Devices
• 页码范围: 75-79
• 页数: 5页
• 语种: 英文
• DOI: 10.1007/s11801-021-0018-5

摘要

NaTaO3/ZnO composites were synthesized via a two-step hydrothermal method.Then ultraviolet detectors based on pure NaTaO3,ZnO and their composites with different mole ratio were fabricated.Among all the devices,the 1∶1 Na-TaO3/ZnO possessed a high photo-to-dark current ratio and stable periodic photoresponse.The photoresponse is facil-itated by the synergistic effect between different components and the improved ZnO morphology in the composites,the reduced dimensionality in which provides a straight electron conduction pathway.Additionally,the 1∶1 Na-TaO3/ZnO detector also exhibits a low dark current less than 1 nA at 5 V bias,which benefits a lot to the low power dissipation and high sensitivity of devices.These results reveal that NaTaO3/ZnO composites are good candidates for the fabrication of ultraviolet detectors.