Title :
Rochelle salt nanocrystals embedded in porous glass
Author :
Jang, E.K. ; Woo, J.W. ; Yu, I.
Author_Institution :
Dept. of Phys., Seoul Nat. Univ., South Korea
Abstract :
Rochelle salt nanocrystals are grown in the small pores of a porous glass (Corning porous VYCOR glass, average pore diameter 6 nm) and silica-gels with two different pore sizes, 20 nm and 100 nm. Crystallization characteristics of Rochelle salt nanocrystals are studied by X-ray diffraction method. We also measure dielectric property, 1H NMR relaxation, and IR reflectance of the nanometer sized Rochelle salt crystals embedded in porous glass. Results of nanocrystals are compared with bulk Rochelle salt and differences in the observed properties are explained in the light of size effects of the ferroelectric material. A possible application of the new material form is found
Keywords :
Rochelle salt; X-ray diffraction; crystal growth from solution; crystallisation; ferroelectric materials; gels; glass; infrared spectra; nanostructured materials; nanotechnology; organic compounds; permittivity; porous materials; potassium compounds; proton magnetic resonance; reflectivity; size effect; sodium compounds; 100 nm; 20 nm; 6 nm; 1H NMR relaxation; Corning porous VYCOR glass; IR reflectance; Rochelle salt nanocrystals; SiO2; X-ray diffraction method; crystallization characteristics; dielectric property; ferroelectric material; pore diameter; porous glass; silica-gels; size effects; small pores; Crystalline materials; Crystallization; Dielectric measurements; Ferroelectric materials; Glass; Nanocrystals; Nuclear magnetic resonance; Reflectivity; Size measurement; X-ray diffraction;
Conference_Titel :
Applications of Ferroelectrics, 1994.ISAF '94., Proceedings of the Ninth IEEE International Symposium on
Conference_Location :
University Park, PA
Print_ISBN :
0-7803-1847-1
DOI :
10.1109/ISAF.1994.522340
