SIOM OpenIR  > 中科院强激光材料重点实验室
Colloidal PbS quantum dot-AlPO4 nanoporous glass composites: Controllable emission and nonlinear absorption
Bai, Zhengyuan; He, Jin; Wang, Yan; Wang, Kangpeng; Li, Rihong; Zhang, Long; jin.he@mail.huji.ac.il; lirihong@siom.ac.cn; lzhang@siom.ac.cn
2017
发表期刊J. Lumines.
卷号192页码:675
摘要In recent years, near-infrared (NIR) materials beyond the visible region (700-2500 nm) has emerged as a promising research field with applications toward telecommunications, photovoltaic, in-vivo imaging, etc. Such technologies will benefit greatly from the advantageous properties of NIR materials including broadband tunable emission, nonlinear optical properties, photostability, and simple chemical processing. Here, we report a facile approach to fabricate high stable and controllable luminescent NIR-emitting composites by confining PbS colloidal quantum dots (CQDs) in sol-gel nanoporous AlPO4 glasses. The transmission electron microscopy images combined with X-ray photoelectron spectra in different depth of PbS-AlPO4 composites (PACs) reveal the successful solidification of CQDs in nanoporous structure of glasses. The controllable luminescence of PACs is dependent on the size of PbS CQDs in solution and glass pore size. We show that the broadband (270 nm) and bimodal emission of PACs are tailored by designing different composited strategies on the incorporation of colloidal quantum dots in AlPO4 nanoporous glasses. Ultrafast nonlinear optical properties of PACs were investigated using an open-aperture Z-scan technique with 515 nm 340 fs pulses. The PACs exhibited obvious reverse saturable absorption in our experiments, with a nonlinear absorption coefficient of 7.17 x 10(-2) cm/GW. Furthermore, the stability of PACs is investigated by emission spectra from a few days to 180 days. The results imply PACs has a better stability than other regular PbS-solid materials such as PbS-Al2O3 films and close packed PbS-filter paper systems.
文章类型Article
部门归属材料
DOI10.1016/j.jlumin.2017.07.043
资助者National Natural Science Foundation of China [61275208]; Research Complex at Harwell, UK ; National Natural Science Foundation of China [61275208]; Research Complex at Harwell, UK ; National Natural Science Foundation of China [61275208]; Research Complex at Harwell, UK ; National Natural Science Foundation of China [61275208]; Research Complex at Harwell, UK
收录类别SCI
资助者National Natural Science Foundation of China [61275208]; Research Complex at Harwell, UK ; National Natural Science Foundation of China [61275208]; Research Complex at Harwell, UK ; National Natural Science Foundation of China [61275208]; Research Complex at Harwell, UK ; National Natural Science Foundation of China [61275208]; Research Complex at Harwell, UK
WOS记录号WOS:000413037400097
引用统计
文献类型期刊论文
条目标识符http://ir.siom.ac.cn/handle/181231/28032
专题中科院强激光材料重点实验室
通讯作者jin.he@mail.huji.ac.il; lirihong@siom.ac.cn; lzhang@siom.ac.cn
作者单位中国科学院上海光学精密机械研究所
推荐引用方式
GB/T 7714
Bai, Zhengyuan,He, Jin,Wang, Yan,et al. Colloidal PbS quantum dot-AlPO4 nanoporous glass composites: Controllable emission and nonlinear absorption[J]. J. Lumines.,2017,192:675.
APA Bai, Zhengyuan.,He, Jin.,Wang, Yan.,Wang, Kangpeng.,Li, Rihong.,...&lzhang@siom.ac.cn.(2017).Colloidal PbS quantum dot-AlPO4 nanoporous glass composites: Controllable emission and nonlinear absorption.J. Lumines.,192,675.
MLA Bai, Zhengyuan,et al."Colloidal PbS quantum dot-AlPO4 nanoporous glass composites: Controllable emission and nonlinear absorption".J. Lumines. 192(2017):675.
条目包含的文件
条目无相关文件。
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Bai, Zhengyuan]的文章
[He, Jin]的文章
[Wang, Yan]的文章
百度学术
百度学术中相似的文章
[Bai, Zhengyuan]的文章
[He, Jin]的文章
[Wang, Yan]的文章
必应学术
必应学术中相似的文章
[Bai, Zhengyuan]的文章
[He, Jin]的文章
[Wang, Yan]的文章
相关权益政策
暂无数据
收藏/分享
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。