Tunable white light from photo- and electroluminescence of ZnO nanoparticles
| Autor: | Pedro Salas, Leonardo Perez Mayen, Alejandro Torres Castro, Luis A. Diaz-Torres, Jorge Oliva, Elder De la Rosa |
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| Rok vydání: | 2013 |
| Předmět: |
Materials science
Photoluminescence Acoustics and Ultrasonics business.industry Electroluminescence Condensed Matter Physics Surfaces Coatings and Films Electronic Optical and Magnetic Materials law.invention Current consumption Zno nanoparticles Quantum dot law White light Optoelectronics Nanorod business Light-emitting diode |
| Zdroj: | Journal of Physics D: Applied Physics. 47:015104 |
| ISSN: | 1361-6463 0022-3727 |
| DOI: | 10.1088/0022-3727/47/1/015104 |
| Popis: | Tunable white light emission was obtained from ZnO nanorods with lengths ranging from 125 to 165 nm and quantum dots with an average size of 5 nm, synthesized with dodecylamine (DCA) as surfactant. It was possible to tailor the emission from cool to warm white light by changing the concentration of DCA in the synthesis process. The CIE coordinates for the white light obtained were (0.33, 0.32) in the case of photoluminescence and (0.31, 0.33) for electroluminescence from ZnO-based LEDs with a turn-on voltage of 4 and 6 V and a maximum current consumption of 2.32 mA at 10 V. |
| Databáze: | OpenAIRE |
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