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Updated: Apr 14, 2026

Microwave-assisted Intramolecular Dehydrogenative Diels-Alder Reactions for the Synthesis of Functionalized Naphthalenes/Solvatochromic Dyes
Published on: April 1, 2013
Photoemission Studies on N-Substituted Dithienylated Phenothiazines
Mathias Fingerle1, Maximilian Hemgesberg2, Yvonne Schmitt2
1University of Kaiserslautern, Department of Physics and Research Center OPTIMAS, Erwin-Schrödinger-Str. 56, 67663 Kaiserslautern (Germany).
Abstract:
Dithienylated phenothiazines (DTPTs) with different functional groups attached to the central nitrogen atom are presented as a class of versatile metal-free chromophores for the design of dye-sensitized solar cells (DSSCs) and organic light-emitting diodes (OLEDs). The electronic characteristics of spin-coated thin films on polycrystalline gold were studied using photoelectron spectroscopy assisted by theoretical calculations, scanning force microscopy, and UV/Vis spectroscopy. Complementary fluorescence spectra show light emission in the blue region (465 nm). The absorption properties and good hole-transporting abilities make DTPTs feasible hole-transporting materials (HTM) and metal-free chromophores in UV-sensitive solar cell designs.
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