Luminescence in ZnO Quantum Particles
| Autor: | Shailaja Mahamuni, B. S. Bendre |
|---|---|
| Rok vydání: | 2004 |
| Předmět: |
Materials science
business.industry Band gap Mechanical Engineering Nanoparticle chemistry.chemical_element Zinc Condensed Matter Physics medicine.disease_cause Spectral line chemistry Nanocrystal Mechanics of Materials medicine Optoelectronics General Materials Science Photoluminescence excitation business Luminescence Ultraviolet |
| Zdroj: | Journal of Materials Research. 19:737-740 |
| ISSN: | 2044-5326 0884-2914 |
| DOI: | 10.1557/jmr.2004.19.3.737 |
| Popis: | Wet-chemical and electrochemical routes were used to synthesize zinc oxide nanoparticles showing peculiar luminescent properties. ZnO-I are the nanoparticles that show only band gap ultraviolet (UV) emission, whereas ZnO-II type nanoparticles show the defect green luminescence along with the UV emission. Photoluminescence excitation (PLE) spectra of ZnO-I nanocrystals exhibit a single feature located at about 368 nm whereas ZnO-II nanocrystals show two features in PLE: a prominent feature at about 368 nm which is size dependent and a hump at 325 nm. These results are discussed in detail in view of the luminescence behavior in ZnO quantum particles. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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