Photoluminescence of Porous Silicon–Zinc Oxide Hybrid structures

Arrays of ZnO nanostructures, which are optically transparent in the visible range, were grown on the surface of porous silicon by electrochemical deposition. Photoluminescence excitation and emission spectra of the obtained hybrid structures were investigated in 220–450 and 400–800 nm regions, resp...

Full description

Saved in:
Bibliographic Details
Published in:Journal of applied spectroscopy 2017-03, Vol.84 (1), p.66-70
Main Authors: Olenych, I. B., Monastyrskii, L. S., Luchechko, A. P.
Format: Article
Language:English
Subjects:
Analytical Chemistry
Annealing
Atomic/Molecular Structure and Spectra
Banded structure
Electric properties
Emission analysis
Emission spectra
Excitation spectra
Hybrid structures
Luminescence
Optical properties
Photoluminescence
Physics
Physics and Astronomy
Porous silicon
Silicon
Zinc oxide
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Arrays of ZnO nanostructures, which are optically transparent in the visible range, were grown on the surface of porous silicon by electrochemical deposition. Photoluminescence excitation and emission spectra of the obtained hybrid structures were investigated in 220–450 and 400–800 nm regions, respectively. It is established that multicolor emission is formed by combining the luminescence bands of porous silicon and zinc oxide. The possibility of controlling the photoluminescence spectra by changing the excitation energy is demonstrated. It is revealed that thermal annealing has an effect on the luminescent properties of porous silicon/zinc oxide hybrid structures. Thermal processing at 500°С leads to a sharp decrease of long-wavelength luminescence associated with porous silicon and to an increase of short-wavelength luminescence intensity related to zinc oxide.
ISSN:0021-9037
1573-8647
DOI:10.1007/s10812-017-0428-0