| Autor: |
van Loosdrecht P. H. M., Perepichka I. F., Paraschuk D. Yu., Orekhova T. V., Parashchuk O. D., Pavelyev V. G., Pshenichnikov M. S. |
| Jazyk: |
angličtina |
| Rok vydání: |
2013 |
| Předmět: |
|
| Zdroj: |
EPJ Web of Conferences, Vol 41, p 05036 (2013) |
| Druh dokumentu: |
article |
| ISSN: |
2100-014X |
| DOI: |
10.1051/epjconf/20134105036 |
| Popis: |
We study charge recombination rates in blends of MEH-PPV and a comprehensive set of low molecular-weight fluorine-based acceptors, using visible-pump - IR-probe photoinduced absorption technique. The positions of acceptor’s HOMO-LUMO levels are engineered by addition of different chemical substituents. The results clearly show the exponential scaling of the charge recombination rate with the acceptor LUMO energy. The minimal donor-acceptor LUMO energy difference required to form a CTC state is estimated as ∼ 0.25 eV. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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