Excited State Relaxation in Vacuum Deposited and Solution Processed Films of Merocyanine/Fulerene Blends
Electronic Archive of Sumy State University
Переглянути архів Інформація| Поле | Співвідношення | |
| Title |
Excited State Relaxation in Vacuum Deposited and Solution Processed Films of Merocyanine/Fulerene Blends
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| Creator |
Peckus, D.
Devizis, A. Hertel, D. Gulbinas, V. |
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| Subject |
Merocyanine
Heterojunction Exciton dynamics Electron donor Electron acceptor Organic solar cells |
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| Description |
Exciton dynamics in merocyanine/fulerene blend films made by vacuum deposition and solution processing techniques were investigated by means of steady-state and time resolved fluorescence and absorption spectroscopy. Intermolecular charge transfer states are formed during several ps in neat merocianine films, which determine their fluorescence properties. Fullerene additives cause formation of new heterogeneous charge transfer states. Even a small fullerene concentration significantly influences the exciton dynamics by quenching inherent merocianine fluorescent states and causing appearance of new fluorescence bands caused by the charge transfer states between merocyanine and fullerene molecules. All fluorescence bands are quenched in films with high fulerence concentration due to the charge carrier generation, and the quenching effect is stronger in vacuum deposited films. |
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| Publisher |
Sumy State University
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| Date |
2014-05-28T10:59:41Z
2014-05-28T10:59:41Z 2012 |
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| Type |
Article
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| Identifier |
Excited State Relaxation in Vacuum Deposited and Solution Processed Films of Merocyanine/Fulerene Blends / D. Peckus, A. Devizis, D. Hertel, V. Gulbinas
// Nanomaterials: Applications & Properties (NAP-2012) : 2-nd International conference, Alushta, the Crimea, September 17-22, 2012 / Edited by: A. Pogrebnjak. - Sumy : Sumy State University, 2012. - V. 1, No4. - 04NEA10
http://essuir.sumdu.edu.ua/handle/123456789/35299 |
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| Language |
en
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