Aligned selenium microtubes array: Synthesis, growth mechanism and photoelectrical properties

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Abstract

Aligned selenium microtubes array vertically grown on a silicon substrate was synthesized in a tubular furnace under argon flow at an evaporation temperature of 300 C. The microtubes were characterized byRaman spectroscopy, X-ray diffraction, UV–vis spectroscopy, scanning and transmission electron microscopy. The photoelectrical properties of the microtube array with light were investigated. It was found a stable relative increase of the conductivity by 180% when the sample was taken from the dark and exposed with tungsten light and a sharp on/off switching behavior. These results hold promise for the fabrication of microtubes-detector arrays

Autore Pugliese

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  • Filippo E. , Manno D. , Serra A.

Titolo volume/Rivista

CHEMICAL PHYSICS LETTERS

Anno di pubblicazione

2011

ISSN

0009-2614

ISBN

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Numero di citazioni Wos

Nessuna citazione

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Settori ERC

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Codici ASJC

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