The emission properties of ns 2 -type Sn 2+ emission centers were demonstrated in CaO-B 2 O 3 -SiO 2 glasses. The broad excitation bands, which are assumed to be composed of S 1 and S 2 sub-bands, correlate strongly with Sn 2+ doping content. The blue Sn 2+ emission bands can be tailored by tuning Sn 2+ coordinate field. Significant enhancement of Sn 2+ emission was observed in B 2 O 3 -rich glasses. Owing to energy-transfer (ET) from Sn 2+ to Tb 3+ /Mn 2+ , significant enhancement of Mn 2+ and Tb 3+ emissions (32 times for Tb 3+ ) were obtained. Moreover, a wide-range-adjustable full-color emitting was achieved via tuning the ET ratio of Sn 2+ →Mn 2+ to Sn 2+ →Tb 3+ and modifying glass structures. Our research extends the understanding of the interactions between Sn 2+ and Mn 2+ /Tb 3+ in amorphous materials, and these deep-light-induced glasses show potential application in lighting and display fields.
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Lv et al. (2014) studied this question.
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