Title :
Dynamic formation of diffraction grating in a photorefractive liqud crystal cell with mesoporous TiO2 layers
Author :
Jang, Kwang-Suk ; Cho, Sung-Ho ; Kim, Jong-Duk
Author_Institution :
Dept. of Chem. & Biomol. Eng., Korea Adv. Inst. of Sci. & Technol., Daejeon
Abstract :
Using N3-chemisorbed mesoporous TiO2 film as a photoconductive layer, we fabricated a layer-structured photorefractive liquid crystal cell. Because there were no charge-trap sites in mesoporous TiO2 layer, a temporal diffraction grating was formed. The photorefractive effect is attributed to the charge separation and diffusion at a TiO2/N3 interface.
Keywords :
diffraction gratings; liquid crystals; mesoporous materials; photorefractive materials; titanium compounds; TiO2; TiO2 - Binary; diffraction grating; dynamic formation; mesoporous layers; photorefractive liqud crystal cell; Charge carrier processes; Diffraction gratings; Electrons; Laser beams; Liquid crystals; Mesoporous materials; Photoconductivity; Photorefractive materials; Spontaneous emission; Writing; liquid crystal; mesoporous TiO2; photorefractive; two-beam coupling;
Conference_Titel :
Nanotechnology Materials and Devices Conference, 2006. NMDC 2006. IEEE
Conference_Location :
Gyeongju
Print_ISBN :
978-1-4244-0540-4
Electronic_ISBN :
978-1-4244-0541-1
DOI :
10.1109/NMDC.2006.4388868
