Enhanced blue emission from ZnS–ZnO composites confined in SBA-15
Enhanced blue emission from ZnS–ZnO composites confined in SBA-15
复制标题
限制在 SBA-15 中的 ZnS-ZnO 复合材料增强蓝光发射
DOI：
10.1016/j.jlumin.2007.11.083
复制
发表时间：
2008
影响因子：
3.6
通讯作者：
J. Zhu
中科院分区：
文献类型：
--
作者：
Fangna Gu;M. Yue;Z. Wu;Lin Sun;Ying Wang;J. Zhu
以ZnO/SBA-15复合材料为原料，通过40℃的可控硫化法制备了一种新的光学材料，即以ZnS修饰的SBA-15纳米ZnO。制备前驱体复合材料的新途径是将硝酸锌直接研磨成模板包合的SBA-15，然后煅烧，使锌分散，并通过调节反应时间来控制ZnO到ZnS的转化。用XRD、氮气吸附-解吸和光致发光（PL）光谱对样品进行了表征。ZnO-ZnS复合材料主要局限于SBA-15的介孔中，其蓝色发射显著增强，但紫外线发射减弱。
A new optical material, the ZnO nanoparticles that are modified with ZnS and confined in SBA-15, has been prepared through the controllable sulfuration at relatively low temperature (40°C) from the ZnO/SBA-15 composites. The precursor composites can be prepared through a novel path in which the zinc is well dispersed by directly grinding zinc nitrate into the as-synthesized SBA-15 occluded with template followed by calcination, and it is possible to control the conversion of ZnO to ZnS by adjusting the reaction time. The resulting samples are characterized by XRD, nitrogen adsorption–desorption and photoluminescence (PL) spectroscopy. ZnO–ZnS composites, mainly confined in the mesopore of SBA-15, exhibit dramatically enhanced blue emission at the expense of the UV emission.
影响因子：
56.9
作者：
Zhao, DY;Feng, JL;Stucky, GD
通讯作者：
Stucky, GD
影响因子：
29.4
作者：
Huang, MH;Wu, YY;Yang, PD
通讯作者：
Yang, PD