金桔
金币
威望
贡献
回帖0
精华
在线时间 小时
|
第一,通常来说,长余辉发光材料的发光强度相对于光致发光弱很多。在日光或者灯光下基本看不到,而黑暗环境下,蓝光和绿光更容易被观察到。
第二,长余辉发光材料的历史发展原因。从古文献记载的夜明珠,再到1866年,出现的第一代长余辉ZnS:Cu,以及1996年Matsuzawa报道的划时代的长余辉材料SrAl2O4:Eu2+,Dy3+。这些长余辉材料都是绿光长余辉材料,而且这两种长余辉材料都被商业化推广,因此,日常中观察到的主要是绿光余辉。
第三,其他颜色的长余辉材料应用前景不明朗,因此市面上几乎看不到。
目前,长余辉发光材料的发光范围已经覆盖了从紫外到短波红外范围,尤其是近红外和短波红外长余辉在生物成像领域和夜视监测领域显示很大的潜力。现在所在的实验室在近几年开发了一系列优异的近红外和短波红外长余辉发光材料,余辉时间可达上百个小时。
以下是近年发表的文章,有兴趣可以看一下。
Pan, Z., Lu, Y.Y. and Liu, F., 2012. Sunlight-activated long-persistent luminescence in the near-infrared from Cr3+-doped zinc gallogermanates. Nature materials, 11(1), pp.58-63. Sunlight-activated long-persistent luminescence in the near-infrared from Cr<sup>3+</sup>-doped zinc gallogermanates
Liu, F., Yan, W., Chuang, Y.J., Zhen, Z., Xie, J. and Pan, Z., 2013. Photostimulated near-infrared persistent luminescence as a new optical read-out from Cr3+-doped LiGa5O8. Scientific reports, 3. Photostimulated near-infrared persistent luminescence as a new optical read-out from Cr<sup>3+</sup>-doped LiGa<sub>5</sub>O<sub>8</sub>
Liu, F., Liang, Y. and Pan, Z., 2014. Detection of up-converted persistent luminescence in the near infrared emitted by the Zn3Ga2GeO8: Cr3+,Yb3+,Er3+ phosphor. Physical review letters, 113(17), p.177401. Detection of Up-converted Persistent Luminescence in the Near Infrared Emitted by the ${\mathrm{Zn}}_{3}{\mathrm{Ga}}_{2}{\mathrm{GeO}}_{8}:{\mathrm{Cr}}^{3+}$, ${\mathrm{Yb}}^{3+}$, ${\mathrm{Er}}^{3+}$ Phosphor
Liu, F., Liang, Y., Chen, Y. and Pan, Z., 2016. Divalent Nickel‐Activated Gallate‐Based Persistent Phosphors in the Short‐Wave Infrared. Advanced Optical Materials, 4(4), pp.562-566. Divalent Nickel‐Activated Gallate‐Based Persistent Phosphors in the Short‐Wave Infrared
Liang, Y.J., Liu, F., Chen, Y.F., Wang, X.J., Sun, K.N. and Pan, Z.W., 2016. New function of the Yb3+ ion as an efficient emitter of persistent luminescence in the short-wave infrared. Light Sci. Appl., 5(7), p.e16124. New function of the Yb<sup>3+</sup> ion as an efficient emitter of persistent luminescence in the short-wave infrared
Liang, Y., Liu, F., Chen, Y., Wang, X., Sun, K.N. and Pan, Z., 2017. Extending the applications for lanthanide ions: efficient emitters in short-wave infrared persistent luminescence. Journal of Materials Chemistry C. Extending the applications for lanthanide ions: efficient emitters in short-wave infrared persistent luminescence
Liang, Y., Liu, F., Chen, Y., Wang, X., Sun, K. and Pan, Z., 2017. Red/near-infrared/short-wave infrared multi-band persistent luminescence in Pr 3+-doped persistent phosphors. Dalton Transactions, 46(34), pp.11149-11153. Red/near-infrared/short-wave infrared multi-band persistent luminescence in Pr3+-doped persistent phosphors |
|