ZnO Nanoparticles: Defect Structure, Space-Charge Depletion

2014 ◽  
pp. 397-417
Keyword(s):  
Space Charge ◽  
Zno Nanoparticles ◽  
Defect Structure ◽  
Structure Space ◽  
Charge Depletion

SPACE-CHARGE LAYER, INTRINSIC "BULK" AND SURFACE COMPLEX DEFECTS IN ZnO NANOPARTICLES — A HIGH-FIELD ELECTRON PARAMAGNETIC RESONANCE ANALYSIS

2013 ◽  
Vol 06 (04) ◽  
pp. 1330004 ◽  
Author(s):  
RÜDIGER-A. EICHEL ◽  
EMRE ERDEM ◽  
PETER JAKES ◽  
ANDREW OZAROWSKI ◽  
JOHAN VAN TOL ◽  
...  
Keyword(s):  
Electron Paramagnetic Resonance ◽  
Space Charge ◽  
Zno Nanoparticles ◽  
High Field ◽  
Space Charge Layer ◽  
Paramagnetic Resonance ◽  
Charge Layer ◽  
Type Formula ◽  
Field Electron ◽  
Electron Paramagnetic

The defect structure of ZnO nanoparticles is characterized by means of high-field electron paramagnetic resonance (EPR) spectroscopy. Different point and complex defects could be identified, located at the "bulk" or the surface region of the nanoparticles. In particular, by exploiting the enhanced g-value resolution at a Larmor frequency of 406.4 GHz, it could be shown that the resonance commonly observed at g = 1.96 is comprised of several overlapping resonances from different defects. Based on the high-field EPR analysis, the development of a space-charge layer could be monitored that consists of (shallow) donor-type [Formula: see text] defects at the "bulk" and acceptor-type [Formula: see text] and complex [Formula: see text] defects at the surface. Application of a core-shell model allows to determine the thickness of the depletion layer to 1.0 nm for the here studied compounds [J.J. Schneider et al., Chem. Mater.22, 2203 (2010)].

Impact of positive space charge depletion layer on negatively charged and neutral centers in gold–diamond Schottky junctions

Carbon ◽  
2019 ◽  
Vol 153 ◽  
pp. 381-388 ◽  
Author(s):  
Kang Liu ◽  
Sen Zhang ◽  
Benjian Liu ◽  
Mingqi Sun ◽  
Jiwen Zhao ◽  
...  
Keyword(s):  
Space Charge ◽  
Depletion Layer ◽  
Positive Space Charge ◽  
Schottky Junctions ◽  
Positive Space ◽  
Charge Depletion

Charge depletion mechanism operative in space‐charge flows

1973 ◽  
Vol 44 (7) ◽  
pp. 3055-3059 ◽  
Author(s):  
Oscar Biblarz ◽  
Carl M. Bohley
Keyword(s):  
Space Charge ◽  
Mechanism Operative ◽  
Charge Depletion

Space charge depletion in grain boundaries of BaZrO3 proton conductors

2012 ◽  
Vol 225 ◽  
pp. 304-307 ◽  
Author(s):  
M. Shirpour ◽  
R. Merkle ◽  
J. Maier
Keyword(s):  
Space Charge ◽  
Grain Boundaries ◽  
Proton Conductors ◽  
Charge Depletion

Space‐charge depletion studies of deep states in glassy semiconductors

1987 ◽  
Vol 61 (3) ◽  
pp. 1038-1046 ◽  
Author(s):  
M. Abkowitz ◽  
S. Maitra
Keyword(s):  
Space Charge ◽  
Charge Depletion

Ionic Space-Charge Depletion in Lithium Fluoride Thin Films on Sapphire (0001) Substrates

2011 ◽  
Vol 21 (15) ◽  
pp. 2901-2905 ◽  
Author(s):  
Chilin Li ◽  
Xiangxin Guo ◽  
Lin Gu ◽  
Dominik Samuelis ◽  
Joachim Maier
Keyword(s):  
Thin Films ◽  
Space Charge ◽  
Lithium Fluoride ◽  
Charge Depletion

Clarification of Mechanisms of Protonic Photovoltaic Action Initiated by Photoexcitation of Strong Photoacids Covalently Bound to Hydrated Nafion Cation-Exchange Membranes Wetted by Aqueous Electrolytes

2021 ◽  
Author(s):  
Simon Luo ◽  
William White ◽  
Joseph M Cardon ◽  
Shane Ardo
Keyword(s):  
Space Charge ◽  
Cation Exchange ◽  
Aqueous Electrolytes ◽  
Semiconductor Interfaces ◽  
Current Rectification ◽  
Diode Behavior ◽  
Charge Depletion ◽  
Covalently Bound

Junctions that form at interfaces of electronic semiconductors can lead to space–charge depletion regions that result in diode behavior through current rectification. Space–charge regions are not unique to semiconductor interfaces...

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