Determination of the ionization energy of nitrogen acceptors in zinc oxide using photoluminescence spectroscopy

2004 ◽  
Vol 84 (16) ◽  
pp. 3049-3051 ◽  
Author(s):  
Lijun Wang ◽  
N. C. Giles
Keyword(s):  
Zinc Oxide ◽  
Ionization Energy ◽  
Photoluminescence Spectroscopy

Determination of the Nitrogen Acceptor Ionization Energy in Zinc Oxide by Photoluminescence Spectroscopy

2003 ◽  
Vol 799 ◽  
Author(s):  
Lijun Wang ◽  
N. Y. Garces ◽  
L. E. Halliburton ◽  
N. C. Giles
Keyword(s):  
Electron Paramagnetic Resonance ◽  
Zinc Oxide ◽  
Low Temperature ◽  
Ionization Energy ◽  
Paramagnetic Resonance ◽  
Lineshape Analysis ◽  
Hall Effect Measurements ◽  
Electron Paramagnetic ◽  
Oxygen Site

ABSTRACTPhotoluminescence (PL) experiments performed on bulk ZnO crystals are used to establish the ionization energy of the substitutional nitrogen acceptor. The temperature dependence of the nitrogen-related electron-acceptor (e,A°) emission band has been monitored in as-grown single crystals. A lineshape analysis of this band is used to determine the acceptor ionization energy. The temperature variation of the ZnO band gap was included in our analysis and the low-temperature acceptor ionization energy for substitutional nitrogen at an oxygen site in ZnO was found to be EA = 209 ± 3 meV. Electron paramagnetic resonance and Hall-effect measurements were also used to characterize these bulk ZnO samples.

The electron transport that occurs within wurtzite zinc oxide and the application of stress

MRS Advances ◽  
2017 ◽  
Vol 2 (48) ◽  
pp. 2627-2632 ◽  
Author(s):  
Poppy Siddiqua ◽  
Michael S. Shur ◽  
Stephen K. O’Leary
Keyword(s):  
Monte Carlo ◽  
Zinc Oxide ◽  
Electron Transport ◽  
Velocity Field ◽  
Monte Carlo Simulations ◽  
Significant Role ◽  
Energy Gap ◽  
Device Application ◽  
The Impact

ABSTRACTWe examine how stress has the potential to shape the character of the electron transport that occurs within ZnO. In order to narrow the scope of this analysis, we focus on a determination of the velocity-field characteristics associated with bulk wurtzite ZnO. Monte Carlo simulations of the electron transport are pursued for the purposes of this analysis. Rather than focusing on the impact of stress in of itself, instead we focus on the changes that occur to the energy gap through the application of stress, i.e., energy gap variations provide a proxy for the amount of stress. Our results demonstrate that stress plays a significant role in shaping the form of the velocity-field characteristics associated with ZnO. This dependence could potentially be exploited for device application purposes.

Polarographic Determination of Zinc in Compounded Rubber

1950 ◽  
Vol 23 (4) ◽  
pp. 975-980
Author(s):  
F. C. J. Poulton ◽  
L. Tarrant
Keyword(s):  
Zinc Oxide ◽  
Ammonium Acetate ◽  
Potassium Thiocyanate ◽  
Acetate Buffer Solution ◽  
Acid Electrolyte ◽  
Buffer Solution ◽  
Ammonium Acetate Buffer ◽  
Ammonium Acetate Buffer Solution ◽  
Gravimetric Procedure

Abstract Reasons are advanced for the unsatisfactory nature of some of the older methods for the determination of very small amounts of zinc in compounded rubber, particularly in latex mixings. The polarographic technique offers a possible solution, but most of the commoner electrolytes for the electroreduction of this metal are alkaline, and give rise to similar errors as are met in the gravimetric procedure. The development of a suitable acid electrolyte was therefore undertaken, and ways of dealing with likely interferences were examined. The electroltye finally recommended is a potassium thiocyanate-ammonium acetate buffer solution; iron, when present, is reduced to the ferrous condition by potassium iodide. The method was used to determine zinc oxide in a series of mixings of known composition ranging from 0.8 to 40 per cent. In all except the highest proportions of zinc oxide, the figures obtained agree well with the theoretical.

On the determination of thermal ionization energy of deep centers from ESR data

1983 ◽  
Vol 30 (2) ◽  
pp. 105-107 ◽  
Author(s):  
M. Godlewski ◽  
H. Przybylińska ◽  
J. M. Langer
Keyword(s):  
Ionization Energy ◽  
Thermal Ionization ◽  
Deep Centers

Determination of the bioavailability of zinc oxide nanoparticles using ICP-AES and associated toxicity

2020 ◽  
Vol 188 ◽  
pp. 110767 ◽  
Author(s):  
Sudhakaran S ◽  
Athira SS ◽  
Suresh Babu S ◽  
Varma HK ◽  
Mohanan PV
Keyword(s):  
Zinc Oxide ◽  
Zinc Oxide Nanoparticles ◽  
Oxide Nanoparticles

Sensitive Molecularly Imprinted Fluorescence Determination of Pyrethroids using Green Zinc Oxide Quantum Dots

2016 ◽  
Vol 50 (7) ◽  
pp. 1139-1149 ◽  
Author(s):  
Qingwei Wang ◽  
Jiaqi Jiang ◽  
Wei Sui ◽  
Xue Lin ◽  
Bo Liu
Keyword(s):  
Quantum Dots ◽  
Zinc Oxide ◽  
Molecularly Imprinted ◽  
Fluorescence Determination
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