Ftalocyaniny jako materiály pro elektroniku

Phthalocyanines play an important role as low-gap semiconducting materials. Many electrical and optical applications are possible like xerographic media, dynamic holographic memories, information displays, optical imaging, and photodielectric elements

Přepínání v molekulárních systémech

A general approach to electrical and optical switching based on molecular materials is put forward, namely, switching based on photochromism, redox reactions, photoconductivity and charge carrier trapping. The physical and chemical background on a novel type of a switch, based on charge-dipole interactions, is discussed in details

Molecular current switch

Scheme of an optically controlled current switch is put forward, based on properties of a conducting polymer containing photochromic moieties chemically attached to the main chain. The idea is supported with results of calculations of local states for charge carriers formed in the vicinity of dipolar species in molecular materials, and with measurements of the drift mobilities in polysilane copolymers containing polar benzaldehyde 2,4-dinitrophenyl-hydrazone groups

Photoinduced charge transfer and quasi-stable molecular dipole formation in poly[methyl(phenyl)silylene]

The photoexcitation is a way to produce molecular dipole, especially in systems containing both weak donor and weak acceptor parts, where photoinduced electron transfer is possible. A stabilization is possible by a rearrangement of atoms in the molecule

Funkční polymery s fotoelektrickou odezvou

Polymeric electronic devices have aroused increasing interest because of their potential low-cost applications, easy processing, possibility of modifications of their chemical structures and good compatibility with a variety of substrates. Many electrical and optical devices based on polymers can be mentioned: fuel cells, gas sensors, field-effect transistors, optical memories, information displays, hole/burning memories, lasers, etc