Near-band-edge exciton polarization change in ZnO nanowires

2015 ◽  
Vol 17 (2) ◽  
pp. 1197-1203 ◽  
Author(s):  
Zaiping Zeng ◽  
Alexia Petoni ◽  
Christos S. Garoufalis ◽  
Sotirios Baskoutas ◽  
Gabriel Bester
Keyword(s):  
Zno Nanowires ◽  
Band Edge ◽  
Near Band Edge ◽  
Polarization Change

Exciton polarization change in ultrathin ZnO nanowires.

Stable enhancement of near-band-edge emission of ZnO nanowires by hydrogen incorporation

2010 ◽  
Vol 21 (6) ◽  
pp. 065709 ◽  
Author(s):  
A Dev ◽  
R Niepelt ◽  
J P Richters ◽  
C Ronning ◽  
T Voss
Keyword(s):  
Zno Nanowires ◽  
Band Edge ◽  
Near Band Edge Emission ◽  
Near Band Edge ◽  
Band Edge Emission ◽  
Edge Emission ◽  
Hydrogen Incorporation

scholarly journals Near band edge photoluminescence of ZnO nanowires: Optimization via surface engineering

2017 ◽  
Vol 111 (23) ◽  
pp. 231901 ◽  
Author(s):  
Danhua Yan ◽  
Wenrui Zhang ◽  
Jiajie Cen ◽  
Eli Stavitski ◽  
Jerzy T. Sadowski ◽  
...  
Keyword(s):  
Surface Engineering ◽  
Zno Nanowires ◽  
Band Edge ◽  
Near Band Edge

scholarly journals Electrical properties and near band edge emission of Bi-doped ZnO nanowires

2007 ◽  
Vol 90 (8) ◽  
pp. 083113 ◽  
Author(s):  
Congkang Xu ◽  
Junghwan Chun ◽  
Dong Eon Kim ◽  
Ju-Jin Kim ◽  
Bonghwan Chon ◽  
...  
Keyword(s):  
Electrical Properties ◽  
Zno Nanowires ◽  
Band Edge ◽  
Near Band Edge Emission ◽  
Near Band Edge ◽  
Band Edge Emission ◽  
Edge Emission ◽  
Doped Zno

Near-Band-Edge Photoluminescence Spectroscopy of ZnO Nanowires Embedded in Polymers

2008 ◽  
Vol 53 (9(5)) ◽  
pp. 2844-2846 ◽  
Author(s):  
J.-P. Richters ◽  
T. Voss ◽  
L. Wischmeier ◽  
I. Rckmann ◽  
J. Gutowski
Keyword(s):  
Zno Nanowires ◽  
Photoluminescence Spectroscopy ◽  
Band Edge ◽  
Near Band Edge

scholarly journals High degree of polarization of the near-band-edge photoluminescence in ZnO nanowires

2011 ◽  
Vol 6 (1) ◽  
Author(s):  
Gwenole Jacopin ◽  
Lorenzo Rigutti ◽  
Andres De Luna Bugallo ◽  
François Henry Julien ◽  
Camilla Baratto ◽  
...  
Keyword(s):  
Zno Nanowires ◽  
Band Edge ◽  
Degree Of Polarization ◽  
Near Band Edge ◽  
High Degree

RAPID THERMAL ANNEALING INDUCED ENHANCED BAND-EDGE EMISSION FROM ZnO NANOWIRES, NANORODS AND NANORIBBONS

2011 ◽  
Vol 04 (01) ◽  
pp. 25-29 ◽  
Author(s):  
SOUMEN DHARA ◽  
P. K. GIRI
Keyword(s):  
Thermal Annealing ◽  
Rapid Thermal Annealing ◽  
Green Emission ◽  
Spectral Shift ◽  
Zno Nanowires ◽  
Band Edge ◽  
Near Band Edge ◽  
Band Edge Emission ◽  
Zno Nanostructures ◽  
Time Resolved

In this letter, we report on the enhanced near band edge (NBE) photoluminescence (PL) emission by rapid thermal annealing (RTA) of ZnO nanowires, nanoribbons and nanorods synthesized by vapor transport method using a ZnO nanopowder source. As a result of RTA, the intensity ratio of NBE to green emission peak is nearly doubled for the nanowires, while this enhancement is one order of magnitude for the nanoribbons and nanorods. Time-resolved PL studies on the green emission band shows a single-exponential decay (time constant ~ns) after RTA. The Raman spectral shift of the RTA treated samples indicates reduced tensile strain in the annealed ZnO nanostructures. Our results demonstrate the effectiveness of RTA process for improving the crystallinity and optical properties of ZnO nanostructures.

scholarly journals Structural and Photoluminescence Properties of ZnO Nanowires

2012 ◽  
Vol 57 (12) ◽  
pp. 1239
Author(s):  
G.Yu. Rudko ◽  
I.V. Dubrovin ◽  
A.I. Klimovskaya ◽  
E.G. Gule ◽  
P.M. Lytvyn ◽  
...  
Keyword(s):  
Silicon Substrate ◽  
Intensity Ratio ◽  
Growth Conditions ◽  
Zno Nanowires ◽  
Band Edge ◽  
Near Band Edge ◽  
Edge Region ◽  
Photoluminescence Properties ◽  
Vapor Liquid Solid ◽  
Evaporation Temperature

Arrays of ZnO nanowires are grown by the vapor-liquid-solid method on a silicon substrate. The results of XRD, SEM, and AFM studies show that the diameters of nanowires vary in the range (50–300) nm, and their length is up to 40 μm. The wires exhibit bright photoluminescence: the band corresponding to the near band edge region and one or two (depending on the growth conditions) defect-related bands. The intensity ratio of the bands reflects the non-stoichiometry of the material and can be controlled by the zinc evaporation temperature and the temperature in the growing zone.

Enhancement of the near-band-edge photoluminescence of ZnO nanowires: Important role of hydrogen incorporation versus plasmon resonances

2011 ◽  
Vol 98 (13) ◽  
pp. 131111 ◽  
Author(s):  
A. Dev ◽  
J. P. Richters ◽  
J. Sartor ◽  
H. Kalt ◽  
J. Gutowski ◽  
...  
Keyword(s):  
Zno Nanowires ◽  
Band Edge ◽  
Near Band Edge ◽  
Hydrogen Incorporation ◽  
Plasmon Resonances

Enhanced near-band-edge emission and field emission properties from plasma treated ZnO nanowires

2010 ◽  
Vol 100 (1) ◽  
pp. 165-170 ◽  
Author(s):  
Qing Zhao ◽  
Tuocheng Cai ◽  
Sheng Wang ◽  
Rui Zhu ◽  
Zhimin Liao ◽  
...  
Keyword(s):  
Field Emission ◽  
Zno Nanowires ◽  
Band Edge ◽  
Near Band Edge Emission ◽  
Near Band Edge ◽  
Band Edge Emission ◽  
Edge Emission ◽  
Emission Properties ◽  
Field Emission Properties
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