[Preparation and spectral properties of PVP-modified CdS nanorods].
Polyvinylpyrrolidone (PVP)-modified CdS nanorods were prepared by a hydrothermal reaction of CdCl2 2.5H2O and (NH4)2S with 10 wt% ethylenediamine aqueous solution as solvent and 1.0 wt% PVP as additives. The obtained products were characterized by means of XRD, TEM, IR, DTA-TG, UV-Vis and PL spectroscopies. The surface-modified CdS nanorods showed narrow size distribution and enhanced luminescence property compared with that of the unmodified ones. The UV-Vis spectra exhibited a structure peak. These results were attributed to the surface passivation of the CdS nanorods by the PVP molecules.
Yuan
Qiu-li
QL
Department of Applied Physics, School of Science and Art, Hangzhou Institude of Electronic Engineering, Hangzhou 310037, China.
Nie
Qiu-lin
QL
Chen
Wei-xiang
WX
Xu
Zhu-de
ZD
D019256:Cadmium Chloride / Q000737:chemistry; D019187:Cadmium Compounds / Q000138:chemical synthesis / Q000737:chemistry*; D046529:Microscopy, Electron, Transmission; D043942:Nanotubes / Q000737:chemistry* / Q000648:ultrastructure; D011205:Povidone / Q000737:chemistry*; D013050:Spectrometry, Fluorescence; D013056:Spectrophotometry, Ultraviolet; D013057:Spectrum Analysis / Q000379:methods*; D013440:Sulfides / Q000138:chemical synthesis / Q000737:chemistry*; D014961:X-Ray Diffraction
D019187:Cadmium Compounds; D013440:Sulfides; C034939:cadmium sulfide; C027711:ammonium sulfide; D011205:Povidone; D019256:Cadmium Chloride