𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Structural characterization of H plasma-doped ZnO single crystals by positron annihilation spectroscopies

✍ Scribed by Anwand, Wolfgang ;Brauer, Gerhard ;Cowan, Thomas E. ;Grambole, Dieter ;Skorupa, Wolfgang ;Čížek, Jakub ;Kuriplach, Jan ;Procházka, Ivan ;Egger, Werner ;Sperr, Peter

Publisher
John Wiley and Sons
Year
2010
Tongue
English
Weight
511 KB
Volume
207
Category
Article
ISSN
0031-8965

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

Nominally undoped, hydrothermally grown ZnO single crystals have been investigated before and after exposure to remote H plasma. Structural characterizations have been made by various positron annihilation spectroscopies (continuous and pulsed slow positron beams, conventional lifetime). The content of bound hydrogen (H‐b) before and after the remote H plasma treatment at the polished side of the crystals was determined at depths of 100 and 600 nm, respectively, using nuclear reaction analysis. At a depth of 100 nm, H‐b increased from (11.8 ± 2.5) to (48.7 ± 7.6) × 10^19^ cm^−3^ after remote H plasma treatment, whereas at 600 nm no change in H‐b was observed.

📜 SIMILAR VOLUMES

Structural characterization of H plasma-
Structural characterization of H plasma-doped ZnO single crystals by Hall measurements and photoluminescence studies
✍ Anwand, Wolfgang ;Brauer, Gerhard ;Cowan, Thomas E. ;Heera, Viton ;Schmidt, Heid 📂 Article 📅 2010 🏛 John Wiley and Sons 🌐 English ⚖ 268 KB

## Abstract Nominally undoped, hydrothermally grown ZnO single crystals have been investigated prior to and after doping in remote H plasma. Characterizations have been made by temperature‐dependent Hall effect (TDH) and low temperature photoluminescence measurements. The H content before and after

Structure characterization of spark plas
Structure characterization of spark plasma sintered alumina by positron annihilation lifetime spectroscopy
✍ Djourelov, Nikolay ;Aman, Yann ;Berovski, Kalin ;Nédélec, Patrick ;Charvin, Nico 📂 Article 📅 2011 🏛 John Wiley and Sons 🌐 English ⚖ 294 KB

## Abstract Positron annihilation lifetime spectroscopy (PALS) measurements were performed to study the influence of the sintering temperature, heating rate and dwell time on the porosity and on the defect concentration on series of spark plasma sintered alumina samples. Two long‐lived components w

Investigation of the Electronic Structur
Investigation of the Electronic Structure of Molybdenum Single Crystal Surfaces by Means of the Positron Annihilation Method
✍ V. T. Adonkin; I. Ya. Dekhtyail; V. I. Silantev 📂 Article 📅 1973 🏛 John Wiley and Sons 🌐 English ⚖ 377 KB

## Abstract A model is proposed explaining the “fine structure” of angular distribution curves of annihilation photons (ACAP) obtained by the interaction of positrons with the electron density on the crystal surface. Data were presented which prove the influence of a deformation on the (110) plane

Photoluminescence properties of nitrogen
Photoluminescence properties of nitrogen-doped ZnO films deposited on ZnO single crystal substrates by the plasma-assisted reactive evaporation method
✍ A. Nakagawa; F. Masuoka; S. Chiba; H. Endo; K. Megro; Y. Kashiwaba; T. Ojima; K. 📂 Article 📅 2007 🏛 Elsevier Science 🌐 English ⚖ 411 KB

Photoluminescence (PL) spectra of nitrogen-doped ZnO films (ZnO:N films) grown epitaxially on n-type ZnO single crystal substrates by using the plasma-assisted reactive evaporation method were measured at 5 K. In PL spectra, free exciton emission at about 3.375 eV was very strong and emissions at 3.