Luminescent properties of solution-grown ZnO nanorods
The optical properties of solution-grown ZnO nanorods were investigated using photoluminescence and cathodoluminescence. The as-grown nanorods displayed a broad yellow-orange sub-band-gap luminescence and a small near-band-gap emission peak. The sub-band-gap luminescence can only be observed when ex...
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| Veröffentlicht in: | Applied physics letters 2006-06, Vol.88 (25), p.252103-252103-3 |
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| container_end_page | 252103-3 |
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| container_title | Applied physics letters |
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| creator | Hsu, J. W. P. Tallant, D. R. Simpson, R. L. Missert, N. A. Copeland, R. G. |
| description | The optical properties of solution-grown ZnO nanorods were investigated using photoluminescence and cathodoluminescence. The as-grown nanorods displayed a broad yellow-orange sub-band-gap luminescence and a small near-band-gap emission peak. The sub-band-gap luminescence can only be observed when exciting above band gap. Scanning cathodoluminescence experiments showed that the width of the sub-band-gap luminescence is not due to an ensemble effect. Upon reduction, the sub-band-gap luminescence disappeared and the near-band-gap emission increased. Compared to ZnO powders that are stoichiometric and oxygen deficient, we conclude that the yellow-orange sub-band-gap luminescence most likely arises from
bulk
defects that are associated with excess oxygen. |
| doi_str_mv | 10.1063/1.2214137 |
| format | Article |
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bulk
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bulk
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bulk
defects that are associated with excess oxygen.</abstract><pub>American Institute of Physics</pub><doi>10.1063/1.2214137</doi></addata></record> |
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| title | Luminescent properties of solution-grown ZnO nanorods |
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