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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: | 10.1021/jp304075g | Fulltext Permission: | none | Fulltext Availability: | No Fulltext |
| Appears in Collections: | SPMS Journal Articles |
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