| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5403643 | Journal of Luminescence | 2007 | 4 Pages |
Abstract
Stable photoluminescence (PL) from AgI nanoparticles embedded in silica glass was investigated at room temperature. The Z1,2 excitonic emission of AgI exhibits fine structure with spacing of â¼0.20Â eV (1610Â cmâ1), which is assigned to the frequency of vibration in interfacial water species. The PL excitation spectrum displays two newly observed bands at 3.45 and 4.35Â eV associated with AgI-silica interaction. We suggest that the excitons in AgI are localized in the AgI/SiO2 interface region before radiative recombination.
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Authors
Haiping He, Zhizhen Ye, Yuxia Wang,