ZHAO Yun-fei,ZHANG Min,YANG Lin-yu,ZHANG Jun,WANG Zhao-jun.Ultraviolet photodetector based on NaTaO3/ZnO composite with enhanced photoelectric performance[J].Optoelectronics Letters,2021,17(2):75-79 Ultraviolet photodetector based on NaTaO3/ZnO composite with enhanced photoelectric performance Author Name Affiliation ZHAO Yun-fei  School of Physics Science and Technology, Xinjiang University, Urumqi 830046, China  ZHANG Min  School of Physics Science and Technology, Xinjiang University, Urumqi 830046, China  YANG Lin-yu  School of Physics Science and Technology, Xinjiang University, Urumqi 830046, China  ZHANG Jun  School of Physics Science and Technology, Xinjiang University, Urumqi 830046, China  WANG Zhao-jun  School of Physics Science and Technology, Xinjiang University, Urumqi 830046, China  Abstract:       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 NaTaO3/ZnO possessed a high photo-to-dark current ratio and stable periodic photoresponse. The photoresponse is facilitated 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 NaTaO3/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. Hits: 659 Download times: 16 View Full Text    Download reader