[The characteristics and dielectric dynamics of hydrated TiO2 in THz frequency range].
Guang Pu Xue Yu Guang Pu Fen Xi
; 33(3): 586-9, 2013 Mar.
Article
em Zh
| MEDLINE
| ID: mdl-23705413
ABSTRACT
Terahertz time-domain spectroscopy (THz-TDS) was used to measure the information of water, the terahertz time-domain and frequency spectroscopy, absorbance, refractive index and the complex dielectric permittivity in the frequency range of 0.21-1 THz of various hydrated TiO2 samples with heating for different times. The result reveals that the absorbance of hydrated TiCO2 reduces with heating time increasing, and the location of the absorption peak is corresponded to the refractive index. The response of electric polarization in THz field has no clear relations with the frequency. With frequency increasing, the dielectric dissipation of hydrated TiO2 firstly decreases and then tends to be stable. The dielectric response always reduces with heating time increasing.
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Base de dados:
MEDLINE
Idioma:
Zh
Ano de publicação:
2013
Tipo de documento:
Article