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Photoelectrochemical Stability of Triarylamine Doped Polycarbonate Layers

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Photoelectrochemical stability (to corona charging + light exposition), light or heat stability, electrophotographic and spectral properties of charge transport layers (CTL) on the base of organic photoconductor (OPC) doped polycarbonate (PC-A) layers have been investigated.

An influence of electrical current transition and light exposure on CTL was studied in cells of a type “PETP-ITO-CGL-CTL-ITO-PETP”. Charge generation layer (CGL) on the base of TiOPc was used.

Products of photoelectrochemical, photochemical and thermochemical reactions of triarylamines (TAA) in the layers or in solutions were investigated with Gas Chromatography-Mass-Spectrometry (GC-MS), High Performance Liquid Chromatography (HPLC) and UV-Vis spectroscopy.

It was shown that the electrochemical and photoelectrochemical processes give the same main products of OPC's molecules conversion as photochemical and thermal processes but in different amounts. Cyclic fatique of investigated CTLs can be caused first of all by minor (including colored) products of the processes.

Document Type: Research Article

Publication date: 2001-01-01

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