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Efficient multispectral photodetection using Mn doped ZnO nanowires

Lookup NU author(s): Dr Stevin Pramana

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Abstract

Crystalline Mn doped ZnO nanowires were synthesized by chemical vapour deposition. The presence of Mn dopant was confirmed by X-Ray diffraction, Raman spectroscopy, transmission electron microscopy and X-Ray photoelectron spectroscopy. The photoconductivity of an individual Mn doped ZnO nanowire was investigated under different visible light excitations (532 and 405 nm). The nanowire exhibited high dark to photocurrent ratios (∼50), fast photocurrent response (∼100-250 ms), and reasonably high responsivity and external quantum efficiencies with good repeatability under different visible light illuminations. These results indicate that Mn doped ZnO nanowires would be promising for efficient multispectral photodetectors and optical switches. © 2012 The Royal Society of Chemistry.


Publication metadata

Author(s): Prabhakar RR, Mathews N, Jinesh KB, Karthik KRG, Pramana SS, Varghese B, Sow CH, Mhaisalkar S

Publication type: Article

Publication status: Published

Journal: Journal of Materials Chemistry

Year: 2012

Volume: 22

Issue: 19

Pages: 9678-9683

Print publication date: 21/05/2012

Online publication date: 05/04/2012

ISSN (print): 0959-9428

ISSN (electronic): 1364-5501

Publisher: Royal Society of Chemistry

URL: https://doi.org/10.1039/c2jm16698d

DOI: 10.1039/c2jm16698d


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