Hydrogen-related complexes in Li-diffused ZnO single crystals
Abstract
Zinc oxide (ZnO) is a wide band gap semiconductor and a potential candidate for next generation white solid state lighting applications. In this work, hydrogen-related complexes in lithium diffused ZnO single crystals were studied. In addition to the well-known Li-OH complex, several other hydrogen defects were observed. When a mixture of Li2O and ZnO is used as the dopant source, zinc vacancies are suppressed and the bulk Li concentration is very high (>1019 cm-3). In that case, the predominant hydrogen complex has a vibrational frequency of 3677 cm-1, attributed to surface O-H species. When Li2CO3 is used, a structured blue luminescence band and O H mode at 3327 cm-1 are observed at 10 K. These observations, along with positron annihilation measurements, suggest a zinc vacancy – hydrogen complex, with an acceptor level ~0.3 eV above the valence-band maximum. This relatively shallow acceptor could be beneficial for p-type ZnO.
- Authors:
-
- Washington State Univ., Pullman, WA (United States)
- Publication Date:
- Research Org.:
- Washington State Univ., Pullman, WA (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES); USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22). Materials Sciences & Engineering Division
- OSTI Identifier:
- 1325779
- Alternate Identifier(s):
- OSTI ID: 1267528; OSTI ID: 1489138
- Grant/Contract Number:
- FG02-07ER46386
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Journal of Applied Physics
- Additional Journal Information:
- Journal Volume: 120; Journal Issue: 3; Journal ID: ISSN 0021-8979
- Publisher:
- American Institute of Physics (AIP)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; zinc; II-VI semiconductors; doping; vacancies; photoluminescence
Citation Formats
Corolewski, Caleb D., Parmar, Narendra S., Lynn, Kelvin G., and McCluskey, Matthew D. Hydrogen-related complexes in Li-diffused ZnO single crystals. United States: N. p., 2016.
Web. doi:10.1063/1.4959106.
Corolewski, Caleb D., Parmar, Narendra S., Lynn, Kelvin G., & McCluskey, Matthew D. Hydrogen-related complexes in Li-diffused ZnO single crystals. United States. https://doi.org/10.1063/1.4959106
Corolewski, Caleb D., Parmar, Narendra S., Lynn, Kelvin G., and McCluskey, Matthew D. Thu .
"Hydrogen-related complexes in Li-diffused ZnO single crystals". United States. https://doi.org/10.1063/1.4959106. https://www.osti.gov/servlets/purl/1325779.
@article{osti_1325779,
title = {Hydrogen-related complexes in Li-diffused ZnO single crystals},
author = {Corolewski, Caleb D. and Parmar, Narendra S. and Lynn, Kelvin G. and McCluskey, Matthew D.},
abstractNote = {Zinc oxide (ZnO) is a wide band gap semiconductor and a potential candidate for next generation white solid state lighting applications. In this work, hydrogen-related complexes in lithium diffused ZnO single crystals were studied. In addition to the well-known Li-OH complex, several other hydrogen defects were observed. When a mixture of Li2O and ZnO is used as the dopant source, zinc vacancies are suppressed and the bulk Li concentration is very high (>1019 cm-3). In that case, the predominant hydrogen complex has a vibrational frequency of 3677 cm-1, attributed to surface O-H species. When Li2CO3 is used, a structured blue luminescence band and O H mode at 3327 cm-1 are observed at 10 K. These observations, along with positron annihilation measurements, suggest a zinc vacancy – hydrogen complex, with an acceptor level ~0.3 eV above the valence-band maximum. This relatively shallow acceptor could be beneficial for p-type ZnO.},
doi = {10.1063/1.4959106},
journal = {Journal of Applied Physics},
number = 3,
volume = 120,
place = {United States},
year = {Thu Jul 21 00:00:00 EDT 2016},
month = {Thu Jul 21 00:00:00 EDT 2016}
}
Web of Science
Figures / Tables:
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