Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/99144
Title: Efficient energy transfer and enhanced infrared emission in er-doped ZnO-SiO2 composites
Authors: Xiao, F.
Chen, R.
Shen, Yiqiang
Dong, Zhili
Wang, H. H.
Zhang, Q. Y.
Sun, H. D.
Keywords: DRNTU::Science::Chemistry::Physical chemistry
Issue Date: 2012
Source: Xiao, F., Chen, R., Shen, Y., Dong, Z. L., Wang, H. H., Zhang, Q. Y., et al. (2012). Efficient energy transfer and enhanced infrared emission in er-doped ZnO-SiO2 composites. The journal of physical chemistry C, 116(24), 13458-13462.
Series/Report no.: The journal of physical chemistry C
Abstract: Intense near-infrared (NIR) emission around 1534 nm has been obtained from ZnO-SiO2:Er3+ composites upon broadband ultraviolet light excitation. Remarkably, enhancement of the NIR emission as much as 20 times was achieved by optimal codoping with Li+ ions. To elucidate the relevant mechanisms, comprehensive spectroscopic measurements have been performed on ZnO-SiO2 composites with and without Er3+ ions doping. Photoluminescence spectroscopy and fluorescence decay dynamics clearly verify the efficient energy transfer from ZnO quantum dots (QDs) to Er3+ ions. Our results have not only demonstrated an efficient approach of color down-conversion but also indicated that ZnO-SiO2:Er3+ composites could be a promising material for optical amplifier using broadband UV pumping.
URI: https://hdl.handle.net/10356/99144
http://hdl.handle.net/10220/17118
DOI: http://dx.doi.org/10.1021/jp304075g
metadata.item.grantfulltext: none
metadata.item.fulltext: No Fulltext
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