Oriented growth of anthracene crystals in an electric field

1968 ◽  
Vol 3-4 ◽  
pp. 543 ◽  
Author(s):  
D. Fischer
Keyword(s):  
Electric Field ◽  
Oriented Growth

scholarly journals ORIENTED GROWTH OF LiNbO3 THIN FILMS ON AMORPHOUS SUBSTRATES IN A LOW ELECTRIC FIELD

1998 ◽  
Vol 47 (2) ◽  
pp. 239
Author(s):  
WU ZHUANG-CHUN ◽  
HU WEI-SHENG ◽  
LIU JUN-MING ◽  
WANG MU ◽  
LIU ZHI-GUO
Keyword(s):  
Thin Films ◽  
Electric Field ◽  
Oriented Growth ◽  
Amorphous Substrates

Field-Assisted Isothermal Oriented Crystallization of SrO-TiO2-SiO2 Polar Glass-Ceramics

2009 ◽  
Vol 66 ◽  
pp. 49-52 ◽  
Author(s):  
Hong Cheng Wang ◽  
Qi Ming Liu ◽  
Jin Shu Cheng
Keyword(s):  
Activation Energy ◽  
Electric Field ◽  
Glass Surface ◽  
Crystallization Process ◽  
Glass Ceramics ◽  
Experimental Results ◽  
Piezoelectric Constant ◽  
Crystallization Activation Energy ◽  
Oriented Growth ◽  
Oriented Crystallization

The polar glass-ceramics of 2.0SrO-1.0TiO2-2.9SiO2 system were prepared by the process of recrystallization with additional applied isothermal and electric field. The results showed that the glass-ceramics piezoelectric constant d33 was 12×10-12 C/N. The study of its oriented crystallization by SEM and XRD indicated that Sr2TiSi2O8 crystal performed oriented growth, which was perpendicular to the glass surface and made it be orientally crystallized with the assisted the isothermal and electric field. The further experimental results showed that the additional electric field reduced the crystallization activation energy, which provided a force for the isothermal orientating crystallization process.

scholarly journals Electric-Field-Oriented Growth of Long Hair-Like Silica Microfibrils and Derived Functional Monolithic Solids

2017 ◽  
Vol 11 (3) ◽  
Author(s):  
Michael Z. Hu ◽  
David W. DePaoli ◽  
Tanya Kuritz ◽  
Ogbemi O. Omatete
Keyword(s):  
Electric Field ◽  
Oriented Growth

Resolution in photoelectron microscopy

1991 ◽  
Vol 49 ◽  
pp. 458-459
Author(s):  
G. F. Rempfer
Keyword(s):  
Electron Microscopy ◽  
Electric Field ◽  
Ultraviolet Light ◽  
Uniform Field ◽  
Virtual Image ◽  
Lens System ◽  
Photoemission Electron Microscopy ◽  
Planar Electrode ◽  
Electron Lens ◽  
Photoemission Electron

In photoelectron microscopy (PEM), also called photoemission electron microscopy (PEEM), the image is formed by electrons which have been liberated from the specimen by ultraviolet light. The electrons are accelerated by an electric field before being imaged by an electron lens system. The specimen is supported on a planar electrode (or the electrode itself may be the specimen), and the accelerating field is applied between the specimen, which serves as the cathode, and an anode. The accelerating field is essentially uniform except for microfields near the surface of the specimen and a diverging field near the anode aperture. The uniform field forms a virtual image of the specimen (virtual specimen) at unit lateral magnification, approximately twice as far from the anode as is the specimen. The diverging field at the anode aperture in turn forms a virtual image of the virtual specimen at magnification 2/3, at a distance from the anode of 4/3 the specimen distance. This demagnified virtual image is the object for the objective stage of the lens system.

Sign in / Sign up

Export Citation Format

Share Document