Synthesis and luminescence properties of Eu3+-doped ZnO nanocrystals by a hydrothermal process

2007 ◽  
Vol 106 (2-3) ◽  
pp. 305-309 ◽  
Author(s):  
Mingya Zhong ◽  
Guiye Shan ◽  
Yajun Li ◽  
Guorui Wang ◽  
Yichun Liu
Keyword(s):  
Hydrothermal Process ◽  
Luminescence Properties ◽  
Zno Nanocrystals ◽  
Doped Zno

Luminescence properties of Eu-doped ZnO nanocrystals/polymer hybrid

2006 ◽  
Vol 3 (10) ◽  
pp. 3569-3572 ◽  
Author(s):  
Masao Ichida ◽  
T. Wada ◽  
M. Kachi ◽  
W. Sakamoto ◽  
T. Yogo ◽  
...  
Keyword(s):  
Luminescence Properties ◽  
Polymer Hybrid ◽  
Zno Nanocrystals ◽  
Doped Zno

Synthesis, characterization and luminescence properties of Y-doped and Tb-doped ZnO nanocrystals

2009 ◽  
Vol 162 (3) ◽  
pp. 179-184 ◽  
Author(s):  
Tiekun Jia ◽  
Weimin Wang ◽  
Fei Long ◽  
Zhengyi Fu ◽  
Hao Wang ◽  
...  
Keyword(s):  
Luminescence Properties ◽  
Zno Nanocrystals ◽  
Doped Zno

Room Temperature Ferromagnetism and Photoluminescence of Fe Doped ZnO Nanocrystals

2011 ◽  
Vol 115 (48) ◽  
pp. 23671-23676 ◽  
Author(s):  
Darshana Y. Inamdar ◽  
Arjun K. Pathak ◽  
Igor Dubenko ◽  
Naushad Ali ◽  
Shailaja Mahamuni
Keyword(s):  
Room Temperature ◽  
Room Temperature Ferromagnetism ◽  
Zno Nanocrystals ◽  
Doped Zno

MORPHOLOGICAL AND PHYSICAL PROPERTIES OF ZnO NANOSTRUCTURES GROWN ON Sb-DOPED ZnO SEEDING FILMS ANNEALED UNDER DIFFERENT ATMOSPHERES

2021 ◽  
pp. 2150116
Author(s):  
WUTTICHAI SINORNATE ◽  
HIDENORI MIMURA ◽  
WISANU PECHARAPA
Keyword(s):  
Physical Properties ◽  
Sol Gel ◽  
Hydrothermal Process ◽  
Visible Region ◽  
High Growth ◽  
High Growth Rate ◽  
Near Band Edge ◽  
Zno Nanostructures ◽  
Zno Nanostructure ◽  
Doped Zno

In this work, morphological and physical properties of pyramid-like ZnO nanostructures fabricated on Sb-doped ZnO seeding films annealed under different atmospheres are extensively studied. The Sb-doped ZnO seeding films were first prepared by sol–gel spin coating technique onto glass substrate then annealed in nitrogen, air and argon followed by low-temperature hydrothermal process for ZnO nanostructures fabrication. The morphological results exhibit the growth of pyramid-like ZnO nanostructure with increasing density of the ZnO nanostructures. The crystal structure shows pyramid-like ZnO wurtzite hexagonal growth along the c-axis without any impurity phase. The growth of pyramid-like ZnO nanostructures is due to the high growth rate of (002) plane. Photoluminescence spectra exhibit the near-band-edge of all samples while the red emission appears in ZnO nanostructures after the hydrothermal process due to the imperfection in the crystal. The reflectance of ZnO nanostructures covers the visible region with the absorption edge of 375[Formula: see text]nm. The calculation shows the relevant energy band gaps in the range of 3.26–3.28[Formula: see text]eV. The difference in hydrothermally grown ZnO nanostructures is significantly affected by different annealing atmospheres.

The Luminescence Properties of ZnO:Al Nanopowders Obtained by Sol-gel, Plasma and Vaporization-Condensation Methods

2007 ◽  
Vol 128 ◽  
pp. 135-140 ◽  
Author(s):  
Larisa Grigorjeva ◽  
Donats Millers ◽  
Krishjanis Smits ◽  
Claude J.A. Monty ◽  
Jules Kouam ◽  
...  
Keyword(s):  
Vapour Deposition ◽  
Sol Gel ◽  
Deposition Process ◽  
Raw Material ◽  
Blue Luminescence ◽  
Luminescence Properties ◽  
Luminescence Spectra ◽  
Decay Kinetics ◽  
Zno Nanocrystals ◽  
Pulse Density

ZnO nanocrystals were synthesized and characterized by XRD and SEM methods. The luminescence spectra and decay kinetics were studied under pulsed laser excitation (266 nm, 8 ns). ZnO and ZnO:Al powders were prepared by sol-gel and plasma chemical synthesis. These powders were used as a raw material for the SPVD (Solar Physical Vapour Deposition) process. In this way, the vaporisation-condensation phenomenon (VC) led to the formation of ZnO whiskers and nanopowders. The luminescence properties of the VC nanopowders were studied and compared to those displayed by the raw material. The Al dopant, present in the raw powders as a solid solution and ZnAl2O4 precipitates, was only present as Al ions in the nanopowders after the SPVD. The blue luminescence intensity increased considerably after SPVD. The whiskers type microstructures showed nonlinear blue luminescence dependent on the excitation pulse density.

scholarly journals Photoluminescence properties of Co2+-doped ZnO nanocrystals

2006 ◽  
Vol 118 (2) ◽  
pp. 245-250 ◽  
Author(s):  
Petra Lommens ◽  
Philippe F. Smet ◽  
Celso de Mello Donega ◽  
Andries Meijerink ◽  
Luc Piraux ◽  
...  
Keyword(s):  
Photoluminescence Properties ◽  
Zno Nanocrystals ◽  
Doped Zno
Sign in / Sign up

Export Citation Format

Share Document