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Surface/Interface Carrier-Transport Modulation for Constructing Photon-Alternative Ultraviolet Detectors Based on Self-Bending-Assembled ZnO Nanowires
Guo, Z.; L. Q. Zhou; Y. G. Tang; L. Li; Z. Q. Zhang; H. B. Yang; H. B. Ma; A. Nathan and D. X. Zhao
2017
Source PublicationAcs Applied Materials & Interfaces
Volume9Issue:36
AbstractSurface/interface charge-carrier generation, diffusion, and recombination/transport modulation are especially important in the construction of photodetectors with high efficiency in the field of nanoscience. In the paper, a kind of ultraviolet (UV) detector is designed based on ZnO nanostructures considering photon-trapping, surface plasmonic resonance (SPR), piezophototronic effects, interface carrier-trapping/transport control, and collection. Through carefully optimized surface/interface carrier-transport modulation, a designed device with detectivity as high as 1.69 X 10(16)/1.71 X 10(16) cm.Hz(1/2)/W irradiating with 380 nm photons under ultralow bias of 0.2 V is realized by alternating nanoparticle/nanowire active layers, respectively, and the designed UV photodetectors show fast and slow recovery processes of 0.27 and 4.52 ms, respectively, which well-satisfy practical needs. Further, it is observed that UV photodetection could be performed within an alternative response by varying correlated key parameters, through efficient surface/interface carrier-transport modulation, spectrally resolved photoresponse of the detector revealing controlled detection in the UV region based on the ZnO nanomaterial, photodetection allowed or limited by varying the active layers, irradiation distance from one of the electrodes, standing states, or electric field. The detailed carrier generation, diffusion, and recombination/transport processes are well illustrated to explain charge-carrier dynamics contributing to the photoresponse behavior.
Indexed Bysci ; ei
Language英语
Document Type期刊论文
Identifierhttp://ir.ciomp.ac.cn/handle/181722/58924
Collection中科院长春光机所知识产出
Recommended Citation
GB/T 7714
Guo, Z.,L. Q. Zhou,Y. G. Tang,et al. Surface/Interface Carrier-Transport Modulation for Constructing Photon-Alternative Ultraviolet Detectors Based on Self-Bending-Assembled ZnO Nanowires[J]. Acs Applied Materials & Interfaces,2017,9(36).
APA Guo, Z..,L. Q. Zhou.,Y. G. Tang.,L. Li.,Z. Q. Zhang.,...&A. Nathan and D. X. Zhao.(2017).Surface/Interface Carrier-Transport Modulation for Constructing Photon-Alternative Ultraviolet Detectors Based on Self-Bending-Assembled ZnO Nanowires.Acs Applied Materials & Interfaces,9(36).
MLA Guo, Z.,et al."Surface/Interface Carrier-Transport Modulation for Constructing Photon-Alternative Ultraviolet Detectors Based on Self-Bending-Assembled ZnO Nanowires".Acs Applied Materials & Interfaces 9.36(2017).
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