Nitrogen is a deep acceptor in ZnO
Zinc oxide is a promising material for blue and UV solid-state lighting devices, among other applications. Nitrogen has been regarded as a potential p-type dopant for ZnO. However, recent calculations [Lyons, Janotti, and Van de Walle, Appl. Phys. Lett. 95, 252105 (2009)] indicate that nitrogen is a...
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AIP Publishing LLC
2011-06-01
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| Series: | AIP Advances |
| Online Access: | http://dx.doi.org/10.1063/1.3582819 |
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doaj-a05d44559f754ced96aeacccd03724402020-11-24T22:19:46ZengAIP Publishing LLCAIP Advances2158-32262011-06-0112022105022105-710.1063/1.3582819005102ADVNitrogen is a deep acceptor in ZnOM. C. Tarun0M. Zafar Iqbal1M. D. McCluskey2Department of Physics and Astronomy and Materials Science Program, Washington State University, Pullman, WA 99164-2814, USADepartment of Physics, COMSATS Institute of Information Technology, Islamabad 44000, PakistanDepartment of Physics and Astronomy and Materials Science Program, Washington State University, Pullman, WA 99164-2814, USAZinc oxide is a promising material for blue and UV solid-state lighting devices, among other applications. Nitrogen has been regarded as a potential p-type dopant for ZnO. However, recent calculations [Lyons, Janotti, and Van de Walle, Appl. Phys. Lett. 95, 252105 (2009)] indicate that nitrogen is a deep acceptor. This paper presents experimental evidence that nitrogen is, in fact, a deep acceptor and therefore cannot produce p-type ZnO. A broad photoluminescence (PL) emission band near 1.7 eV, with an excitation onset of ∼2.2 eV, was observed, in agreement with the deep-acceptor model of the nitrogen defect. The deep-acceptor behavior can be explained by the low energy of the ZnO valence band relative to the vacuum level.http://dx.doi.org/10.1063/1.3582819 |
| collection |
DOAJ |
| language |
English |
| format |
Article |
| sources |
DOAJ |
| author |
M. C. Tarun M. Zafar Iqbal M. D. McCluskey |
| spellingShingle |
M. C. Tarun M. Zafar Iqbal M. D. McCluskey Nitrogen is a deep acceptor in ZnO AIP Advances |
| author_facet |
M. C. Tarun M. Zafar Iqbal M. D. McCluskey |
| author_sort |
M. C. Tarun |
| title |
Nitrogen is a deep acceptor in ZnO |
| title_short |
Nitrogen is a deep acceptor in ZnO |
| title_full |
Nitrogen is a deep acceptor in ZnO |
| title_fullStr |
Nitrogen is a deep acceptor in ZnO |
| title_full_unstemmed |
Nitrogen is a deep acceptor in ZnO |
| title_sort |
nitrogen is a deep acceptor in zno |
| publisher |
AIP Publishing LLC |
| series |
AIP Advances |
| issn |
2158-3226 |
| publishDate |
2011-06-01 |
| description |
Zinc oxide is a promising material for blue and UV solid-state lighting devices, among other applications. Nitrogen has been regarded as a potential p-type dopant for ZnO. However, recent calculations [Lyons, Janotti, and Van de Walle, Appl. Phys. Lett. 95, 252105 (2009)] indicate that nitrogen is a deep acceptor. This paper presents experimental evidence that nitrogen is, in fact, a deep acceptor and therefore cannot produce p-type ZnO. A broad photoluminescence (PL) emission band near 1.7 eV, with an excitation onset of ∼2.2 eV, was observed, in agreement with the deep-acceptor model of the nitrogen defect. The deep-acceptor behavior can be explained by the low energy of the ZnO valence band relative to the vacuum level. |
| url |
http://dx.doi.org/10.1063/1.3582819 |
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AT mctarun nitrogenisadeepacceptorinzno AT mzafariqbal nitrogenisadeepacceptorinzno AT mdmccluskey nitrogenisadeepacceptorinzno |
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