A highly photoconductive poly(vinylcarbazole)/2,4,7-trinitro-9-fluorenone sol-gel material that follows a classical charge-generation model

Article Abstract:

Highly photoconductive properties are described for organic-inorganic hybrid sol-gel thin film materials composed of a classical poly(vinylcarbazole)/2,4,7-trinitro-9-fluorenone (PVK/TNF) polymeric mixture. This mixture is entrapped in a Si[O.sub.2] matrix whose pores were chemically modified by organic functional groups and the PVK/TNF based sol-gel films follow Onsager's classical charge-generation model.

Semiconductors and related devices, Semiconductor and Related Device Manufacturing, Basic Chemical Manufacturing, Industrial Organic Chemicals, Organic Chemicals, Thin Film Materials, Polymers, Organic compounds, Thin films, Optical properties, Dielectric films

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A novel photoconductive PVK/SiO2 interpenetrated network prepared by the sol-gel process

Article Abstract:

The preparation of a novel photoconductive sol-gel material based on an organic/ inorganic interpenetrating network (IPN) is described. The composition of the sol-gel photoconductive material mimics the well-known polymeric one based on poly(N-vinylcarbazole) (PVK) as the charge-transporting matrix and 2,4,7-trinitro-9-fluorenone (TNF) as the sensitizer.

Science & research, All Other Basic Inorganic Chemical Manufacturing, Industrial inorganic chemicals, not elsewhere classified, Silicon Dioxide, Analysis, Photoconductivity, Polymer networks

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Identification of oblique and coplanar inclined fluorescent J-dimers in rhodamine 110 doped sol-gel-glasses

Article Abstract:

Analysis of rhodium 110 (R110) fluorescent properties in investigating its ability to form J-dimers adsorbed on the porous surface is presented. Experiments include J-dimer formation at a low R110 concentration using gels with adsorption available specific surface area.

Spain, Fluorescence, Colloids, Adsorption

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