Document Detail


Colour tuneability in sol-gel nano-glass-ceramics comprising Yb(3+)-Er(3+)-Tm3+ Co-doped NaYF4 nanocrystals.
MedLine Citation:
PMID:  20352788     Owner:  NLM     Status:  PubMed-not-MEDLINE    
Abstract/OtherAbstract:
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.
Authors:
J M?ndez-Ramos; A C Yanes; A Santana-Alonso; J Del-Castillo; V D Rodr?guez
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of nanoscience and nanotechnology     Volume:  10     ISSN:  1533-4880     ISO Abbreviation:  J Nanosci Nanotechnol     Publication Date:  2010 Feb 
Date Detail:
Created Date:  2010-03-31     Completed Date:  2010-04-19     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101088195     Medline TA:  J Nanosci Nanotechnol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1273-7     Citation Subset:  -    
Affiliation:
Departamento F?sica Fundamental y Experimental, Electr?nica y Sistemas, Universidad de La Laguna, 38206 La Laguna, Tenerife, Spain.
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