Journalartikel

Jahr der Veröffentlichung: 2016

Zeitschrift: Journal of Applied Physics

Bandnummer: 120

Heftnummer: 21

ISSN: 0021-8979

eISSN: 1089-7550

DOI Link: https://doi.org/10.1063/1.4969041

Verlag: American Institute of Physics

Abstract: 
We studied the electron transfer from excitons in adsorbed indoline dye layers across the organic-inorganic interface. The hybrids consist of indoline derivatives on the one hand and different inorganic substrates (TiO2, ZnO, SiO2(0001), fused silica) on the other. We reveal the electron transfer times from excitons in dye layers to the organic-inorganic interface by analyzing the photoluminescence transients of the dye layers after femtosecond excitation and applying kinetic model calculations. A correlation between the transfer times and four parameters have been found: (i) the number of anchoring groups, (ii) the distance between the dye and the organic-inorganic interface, which was varied by the alkyl-chain lengths between the carboxylate anchoring group and the dye, (iii) the thickness of the adsorbed dye layer, and (iv) the level alignment between the excited dye (pi*-level) and the conduction band minimum of the inorganic semiconductor. Published by AIP Publishing.

Harvard-Zitierstil: Meyenburg, I., Falgenhauer, J., Rosemann, N., Chatterjee, S., Schlettwein, D. and Heimbrodt, W. (2016) Charge transfer at organic-inorganic interfaces-Indoline layers on semiconductor substrates, Journal of Applied Physics, 120(21), Article 215502. https://doi.org/10.1063/1.4969041

APA-Zitierstil: Meyenburg, I., Falgenhauer, J., Rosemann, N., Chatterjee, S., Schlettwein, D., & Heimbrodt, W. (2016). Charge transfer at organic-inorganic interfaces-Indoline layers on semiconductor substrates. Journal of Applied Physics. 120(21), Article 215502. https://doi.org/10.1063/1.4969041