|
Publications
|
|
||
| |
||
|
||
| ||
|
|
"Exciton-Exciton Annihilation as a Mechanism for Uphill Transfer in a Molecular Excitonic System" C. N. Lincoln, M. Block, B. Baudisch, P. Malevich, H. von Berlepsch, E. Riedle and J. Hauer EPJ Web Conf. 205, 06017 (2019). Abstract: Exciton dynamics in a HJ-aggregate of cyanine dye TTBC are investigated by transient absorption with a time resolution of <60 fs and power-dependent emission spectroscopies. Both measurements are consistent with an exciton delocalization length of ~28 monomers. A model assuming diffusive exciton motion reveals that the exciton mobility is at least bimodal and restricted to one spatial dimension. J-band diffusion rates of 2.69 and 2.79e-3 cm2s-1 are found, leading to maximal diffusion lengths of 449 and 14.5 nm. The findings indicate that exciton-exciton annihilation is the origin of effective uphill transfer. This mechanism, if present under solar radiation, maybe useful for organic photovoltaic systems. BMO authors (in alphabetic order): Bastian Baudisch Matthias Block Jürgen Hauer Eberhard Riedle Order Hardcopy  WWW-Version DOI-Version |
mailto: webmaster
Letzte Änderung: 2016-09-14 13:34
-------------------------------------------
nav.inc[abfrage], query:Delete from kurzzeitstatistik where TS<"1714138166"
-------------------------------------------
ERRNO: 0
-------------------------------------------
RESULT:
-------------------------------------------
ABORTED
-------------------------------------------
-------------------------------------------
nav.inc[abfrage], query:INSERT INTO kurzzeitstatistik (Datei, Adresse, id, TS) VALUES ("", "3.19.56.45" , "3069" , "1714138766 " )
-------------------------------------------
ERRNO: 0
-------------------------------------------
RESULT:
-------------------------------------------
ABORTED
-------------------------------------------
-------------------------------------------
nav.inc[abfrage], query:INSERT INTO statistik (Datei, Adresse, id, TS, Laufzeit) VALUES ("", "3.19.56.45" , "3069" , "1714138766 ","" )
-------------------------------------------
ERRNO: 0
-------------------------------------------
RESULT:
-------------------------------------------
ABORTED
-------------------------------------------