Luminescence 3D-ordered porous materials composed of CdSe and CdTe nanocrystals.
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.
Yang
Linglu
L
College of Chemistry and Molecular Engineering and School of Physics, Peking University, Beijing 100871, China.
Yang
Zhaohui
Z
Cao
Weixiao
W
Chen
Li
L
Xu
Jun
J
Zhang
Huizhen
H