| Colour tuneability in sol-gel nano-glass-ceramics comprising Yb(3+)-Er(3+)-Tm3+ Co-doped NaYF4 nanocrystals. | |
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MedLine Citation:
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PMID: 20352788 Owner: NLM Status: PubMed-not-MEDLINE |
Abstract/OtherAbstract:
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White light can be obtained by up-conversion processes in a cheap and efficient way, being of great interest for lighting, displays, and photonic integrated devices. Here we report a generation of white light under 980 nm laser infrared excitation in Y(b3+)-Er(3+)-Tm3+ triply doped sol-gel derived nano-glass-ceramics containing NaYF4 nanocrystals where co-dopants ions are partitioned. Efficient simultaneous blue, green, and red up-conversion emissions give rise to a balanced white overall emission and corresponding up-conversion mechanisms have been analyzed. Changes in pump power intensity or heat treatment temperature widely vary the ratio of emission bands, resulting in a colour tuneability which has been analyzed and quantified in terms of CIE standard chromaticity diagram. |
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Authors:
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J M?ndez-Ramos; A C Yanes; A Santana-Alonso; J Del-Castillo; V D Rodr?guez |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Journal of nanoscience and nanotechnology Volume: 10 ISSN: 1533-4880 ISO Abbreviation: J Nanosci Nanotechnol Publication Date: 2010 Feb |
Date Detail:
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Created Date: 2010-03-31 Completed Date: 2010-04-19 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 101088195 Medline TA: J Nanosci Nanotechnol Country: United States |
Other Details:
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Languages: eng Pagination: 1273-7 Citation Subset: - |
Affiliation:
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Departamento F?sica Fundamental y Experimental, Electr?nica y Sistemas, Universidad de La Laguna, 38206 La Laguna, Tenerife, Spain. |
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