Temperature and initial polarization dependences of the electrooptic coefficient of BaTiO3 crystal film

During recent experiments on Au films, a qualitative correlation between hole formation and deposition rate was observed. These early studies were concerned with films 80 to 1000A thick deposited on glass at -185°C and annealed at 170°C. In the present studies this earlier work was made quantitative. Deposition rates varying between 5 and 700 A/min were used. The effects of deposition rate on hole density for two films 300 and 700A thick were investigated.Au was evaporated from an outgassed W filament located 10 cm from a glass microscope slide substrate and a quartz crystal film thickness monitor. A shutter separating the filament from the substrate and monitor made it possible to obtain a constant evaporation rate before initiating deposition. The pressure was reduced to less than 1 x 10-6 torr prior to cooling the substrate with liquid nitrogen. The substrate was cooled in 15 minutes during which the pressure continued to drop to the mid 10-7 torr range, where deposition was begun.

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PHYSICOCHEMICAL ASPECTS OF THE FORMATION OF ALN CRYSTAL FILM ON THE (0001)AL2O3 SURFACE

Chemistry for Sustainable Development ◽

10.15372/khur2019140 ◽

2019 ◽

Keyword(s):

Crystal Film

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Influence of Anisotropic Scattering Mechanisms on Polarization Dependences of Terahertz Radiation Emitted by Hot Electrons

Ukrainian Journal of Physics ◽

10.15407/ujpe59.05.0505 ◽

2014 ◽

Vol 59 (5) ◽

pp. 505-514

Author(s):

P.M. Tomchuk ◽

◽

V.M. Bondar ◽

O.E. Levshin ◽

◽

...

Keyword(s):

Terahertz Radiation ◽

Anisotropic Scattering ◽

Hot Electrons ◽

Scattering Mechanisms ◽

Polarization Dependences

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Self-Assembly Optical Components

MRS Proceedings ◽

10.1557/proc-771-10.10 ◽

2003 ◽

Vol 771 ◽

Cited By ~ 2

Author(s):

Pavel I. Lazarev ◽

Michael V. Paukshto ◽

Elena N. Sidorenko

Keyword(s):

Optical Properties ◽

Self Assembly ◽

Crystalline State ◽

Liquid Crystalline ◽

Film Deposition ◽

X Ray Diffraction ◽

Optical Components ◽

Crystal Film ◽

Solid Film ◽

Thin Crystal

AbstractWe report a new method of Thin Crystal Film deposition. In the present paper we describe the method of crystallization, structure, and optical properties of Bisbenzimidazo[2,1-a:1',2',b']anthra[2,1,9-def:6,5,10-d'e'f']-diisoquinoline-6,9-dion (mixture with cis-isomer) (abbreviated DBI PTCA) sulfonation product. The Thin Crystal Film has a thickness of 200-1000 nm, with anisotropic optical properties such as refraction and absorption indices. X-ray diffraction data evidences a lyotropic liquid crystalline state in liquid phase and crystalline state in solid film. Anisotropic optical properties of the film make it useful in optical devices, e.g. liquid crystal displays.

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