ISSN:
1662-9779
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Physics
Notes:
Nanoparticles of wide band gap II-VI compounds doped with transition metal (TM) orrare earth (RE) ions are perspective phosphor materials and fluorescence labels for optoelectronic,biology and medical applications. The efficiency of 3d-3d and 4f-4f intra-shell transitions is shownto be enhanced in TM, RE doped nanoparticles. Two mechanisms of emission enhancement relatedto spin dependent interactions of free carriers with impurities are discussed. These interactionsenhance the TM, RE intra-shell transitions by increasing the rate of host to impurity energy transfer.It is shown also that Al doping increases the intensity of light emission from ZnO nanoparticles
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/24/transtech_doi~10.4028%252Fwww.scientific.net%252FSSP.128.123.pdf
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