期刊
MATERIALS LETTERS
卷 108, 期 -, 页码 149-152出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.matlet.2013.06.083
关键词
p-NiO/n-ZnO composite nanostructures; Photodiode; UV-visible spectrophotometry
In this research work, a UV photo-detector is fabricated on fluorine doped tin oxide (FTO) glass substrate by exploiting the advantageous features of p-n heterojunctions based on p-NiO and n-ZnO composite nanostructures forming a coral-reef like structures. Scanning electron microscopy (SEM) and X-ray diffraction results showed uniform morphology and good crystal quality of the synthesised nanostructures respectively. I-V measurements have shown nonlinear and rectifying response of the p-NiO/n-ZnO heterojunction. The proposed photodiode exhibited excellent UV response with acceptable photocurrent generation of about 3.4 mA and the responsivity of 2.27 A/W at -3 biasing voltage. (C) 2013 Elsevier B.V. All rights reserved.
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