Luminescence 3D-ordered porous materials composed of CdSe and CdTe nanocrystals

被引：33

作者：

Yang, LL

Yang, ZH

Cao, WX ^{[1
]}

Chen, L

Xu, J

Zhang, HZ

机构：

[1] Peking Univ, Coll Chem & Mol Engn, Beijing 100871, Peoples R China

[2] Peking Univ, Sch Phys, Beijing 100871, Peoples R China

来源：

JOURNAL OF PHYSICAL CHEMISTRY B | 2005年 / 109卷 / 23期

关键词：

D O I：

10.1021/jp050242r

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The luminescence porous materials of CdTe or CdSe nanocrystals (NCs) were prepared by filling the corresponding NCs into the voids of colloidal crystal by co-deposition of polymer beads and NCs. After removing the beads with tetrahydrofuran (THF), the 3D-ordered porous materials of CdTe (or CdSe) NCs were obtained. The wavelength of maximum photoluminescence of the NCs porous material shows obvious red shift compared with their aqueous dispersion. Under the excitation of high-energy electron the porous materials of CdTe and CdSe NCs will emit photons that can be collected to form a cathode luminescence (CL) image.

引用

页码：11501 / 11504

页数：4

共 35 条

[21] Experimental demonstration of photonic crystal based waveguides [J].