Photoluminescence investigations of bulk and microstructured ZnO crystals for scintillator applications
Issue Date
2-2015
Abstract
Photoluminescence properties of bulk and microstructured ZnO crystals are investigated for potential scintillator applications. A bulk crystal is prepared by hydrothermal method, while hexagonal micron-sized crystals are prepared by aqueous chemical growth and carbothermal reduction methods. The bulk sample exhibits UV emission only, while the microstructured samples exhibit both UV and visible emissions. The ZnO microstructures have faster near-band edge emission lifetimes of 100 to 800 ps compared to 440 ps and 2 ns of bulk ZnO. No direct correlation between the defect-related emissions and the near-band edge emission has been observed. ZnO microstructures with fast luminescence lifetimes have promising applications as EUV lithography and XFELs scintillators.
Source or Periodical Title
Journal of Ceramic Processing Research
ISSN
1229-9162
Volume
16
Issue
1
Page
98-101
Document Type
Article
Physical Description
illustrations, tables, graphs
Language
English
Subject
Microstructures, Oxides, Photoluminescence, Scintillators, ZnO
Recommended Citation
Empizo, M.J.F., Yamanoi, K., Fukuda, K., Arita, R., Minami, Y., Shimizu, T., Sarukura, N., Fukud, T., Santos-Putungan, A.B., Vargas, R., Salvador, A., Sarmago, R. (2015). Photoluminescence investigations of bulk and microstructured ZnO crystals for scintillator applications. Journal of Ceramic Processing Research, 16 (1), 98-101.
Identifier
DOI : 10.36410/jcpr.2015.16.1.98
Digital Copy
yes