Electrooptical devices

In addition to conventional applications in conducting polymers and electrooptical devices, a number of recent novel applications have emerged. Switching of DNA electron transfer upon single-strand/double-strand hybridization fonns the basis for a new medical biosensor teclmology. Since the number of base pairs of length 20... 

In an electrooptic material the phase retardation angle is controlled by altering birefringence, which is in turn controlled by the potential of an apphed electric field. An electrooptic device thus acts as a variable phase optical retardation plate, and can be used to modulate the wavelength or intensity of an incident beam. 

P. Kaminow,M Introduction to Electrooptic Devices, Academic Press, Inc., New York, 1974. 

M. Zayat and D. Levy, The performance of hybrid organic active-inorganic GDLC electrooptical devices, J. Mater. Chem., 2005, 15, 3769. 

A paper by Meijer et al. described the synthesis and electronic properties of a series of PPE-PPV hybrid oligomers. The approach is shown in Scheme 11 [70]. Starting from a brominated stilbene, reaction with a series of diethynyl-benzenes furnished pentameric PE-PV hybrids in yields around 80%. The materials are used as emitters in LEDs and other electrooptical devices. It was noted that fibrous aggregates formed upon melting and recooling of thin films of these pentameric PE-PV hybrids. 

Dendrimers are a special class of arborescent monodisperse nanometer sized molecules that have been used in the synthesis of Au NPs as surface stabilizers or nanoreactor/templates for nanoparticle growth. Moreover, these hybrid nanomaterials have great potential for application in different fields such as sensors, imaging in cells, electrooptical devices, catalysis, drug delivery agents, and so on. 

Kaminow, I. P. An Introduction to Electrooptic Devices Academic Press New York, 1974. 

There is great interest in preparing materials which could facilitate the development of electrooptic devices. Such devices could permit broad band optical signal encoding so that telephone, data, television, and even higher frequency transmissions could simultaneously be sent down a single optical fiber. The nonlinear optical process which makes this possible is the linear electrooptic effect (EO). It is based on the first field nonlinearities (Z ) of the molecular dipole moment, / ,... 

In the following discussion, some of the main approaches to electrooptical devices based on photoactive SAMs and various examples of coupled photon and electron transfer reactions which lead to measurable or usable output are discussed. 

Synthesis of metal particles has been intensively investigated because metal nanoparticles have been applied to electrooptical devices, electronic devices, imaging materials, catalysis, and so on [16]. Fabrication of nanoparticles becomes one of important topics in nanotechnology. For that purpose, it is neces-... 

Vaughn-Spickers [5] prepared chiral photoisomerizable mesogenic compounds, (VII), that retained their chirality upon photoinitation and were used in optical and electrooptical devices. 

Title Polymers Having Pendant Nonlinear Optical Chromophores and Electrooptic Devices Therefrom... 

Additional Step 12 polymeric nonlinear optical chromophores and electrooptic devices were prepared by the author [1] in earlier investigations. 

Carbamatosil Nanocomposites with Ionic Liquid Redox Electrolytes for Electrooptic Devices... 

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