• 文献标题:   Modified interfaces of twisted root-like 2D configured ZnO hierarchical nanostructures through surface lattice coating of NiO/graphene and their enhanced UV photodetection properties
  • 文献类型:   Article
  • 作  者:   HUANG BR, KATHIRAVAN D, SARAVANAN A, YANG WL, WU YZ
  • 作者关键词:   twisted zno, grgoniozno edge, uv photodetector, zno pn junction
  • 出版物名称:   JOURNAL OF ALLOYS COMPOUNDS
  • ISSN:   0925-8388 EI 1873-4669
  • 通讯作者地址:  
  • 被引频次:   8
  • DOI:   10.1016/j.jallcom.2021.159240 EA FEB 2021
  • 出版年:   2021

▎ 摘  要

The formation of edges in 2D configured nanomaterials are special sites which possess different arrangements of atoms and properties compared to that of plain nanomaterials. Herein, a novel strategy is used to synthesize the self-assembled 2D configured edges with twisted building blocks of glucose reduced graphene oxide (grGO)-incorporated NiO-coated ZnO NRs via soft chemical route. It is envisioned that the present hierarchical nanostructures will stimulate the performances of UV photodetection due to these combinations of materials. The as-prepared samples such as ZnO nanorods (NRs), NiO-ZnO NRs, grGO-ZnO NRs and grGO-incorporated NiO-ZnO NRs are designed using Ag interdigitated electrodes. Remarkably, the as-fabricated grGO-incorporated NiO-ZnO NRs shows enhanced photodetection properties when compared to those of bare ZnO NRs, NiO-ZnO NRs and grGO-ZnO. Especially, the grGO-incorporated NiO-ZnO NRs photodetector exhibits the highest UV on/off ratio of 3 x 10(4) which is similar to 60 times better than that of bare ZnO NRs photodetector. The results reveal that the development of p-n junction along grGO coating at the surface of NiO-ZnO enhances the relaxation dynamics of ZnO NRs by reducing the photocarriers contact with O-2 species due to surface passivation. The present grGO-NiO-ZnO photodetectors might opening up a new opportunities for future optoelectronic devices. (C) 2021 Elsevier B.V. All rights reserved.