Defects in zno

MD McCluskey, SJ Jokela - Journal of Applied Physics, 2009 - pubs.aip.org
Zinc oxide (ZnO) is a wide band gap semiconductor with potential applications in
optoelectronics, transparent electronics, and spintronics. The high efficiency of UV emission …

Vacancy defect-induced d0 ferromagnetism in undoped ZnO nanostructures: Controversial origin and challenges

B Qi, S Ólafsson, HP Gíslason - Progress in Materials Science, 2017 - Elsevier
ZnO-based dilute magnetic semiconductors have attracted great interest for their promising
application potential in spintronics. Observation of ferromagnetic-like behavior in oxides in …

Blue Luminescence of ZnO nanoparticles based on non‐equilibrium processes: defect origins and emission controls

H Zeng, G Duan, Y Li, S Yang, X Xu… - Advanced functional …, 2010 - Wiley Online Library
High concentrations of defects are introduced into nanoscale ZnO through non‐equilibrium
processes and resultant blue emissions are comprehensively analyzed, focusing on defect …

Oxygen vacancies: The origin of -type conductivity in ZnO

L Liu, Z Mei, A Tang, A Azarov, A Kuznetsov, QK Xue… - Physical Review B, 2016 - APS
Oxygen vacancy (VO) is a common native point defect that plays crucial roles in determining
the physical and chemical properties of metal oxides such as ZnO. However, fundamental …

Assessment of correction methods for the band-gap problem and for finite-size effects in supercell defect calculations: Case studies for ZnO and GaAs

S Lany, A Zunger - Physical Review B—Condensed Matter and Materials …, 2008 - APS
Contemporary theories of defects and impurities in semiconductors rely to a large extent on
supercell calculations within density-functional theory using the approximate local-density …

Role of zinc interstitials and oxygen vacancies of ZnO in photocatalysis: a bottom-up approach to control defect density

F Kayaci, S Vempati, I Donmez, N Biyikli, T Uyar - Nanoscale, 2014 - pubs.rsc.org
Oxygen vacancies (VOs) in ZnO are well-known to enhance photocatalytic activity (PCA)
despite various other intrinsic crystal defects. In this study, we aim to elucidate the effect of …

Photo-supercapacitors based on nanoscaled ZnO

CT Altaf, O Coskun, A Kumtepe, AM Rostas… - Scientific reports, 2022 - nature.com
In this study, zinc oxide (ZnO) powders in two different morphologies, nanowire (NW) and
nanoflower (NF), have been synthesized by the hydrothermal method. The eligibility of the …

Dopability, intrinsic conductivity, and nonstoichiometry of transparent conducting oxides

S Lany, A Zunger - Physical Review Letters, 2007 - APS
Existing defect models for In 2 O 3 and ZnO are inconclusive about the origin of conductivity,
nonstoichiometry, and coloration. We apply systematic corrections to first-principles …

Impact on the photocatalytic dye degradation of morphology and annealing-induced defects in zinc oxide nanostructures

C Tuc Altaf, TO Colak, AM Rostas, A Popa… - ACS …, 2023 - ACS Publications
In this study, three different morphologies, nanoflower (NF), nano sponge (NS), and nano
urchin (NU), of zinc oxide (ZnO) nanostructures were synthesized successfully via a mild …

A Versatile Photochromic Dosimeter Enabling Detection of X‐Ray, Ultraviolet, and Visible Photons

Z Yang, J Hu, D Van der Heggen, M Jiao… - Laser & Photonics …, 2023 - Wiley Online Library
An accurate measurement of radiation doses is required to ensure efficient use of
electromagnetic radiation in medical diagnostics, agriculture, or general lighting …