Lecture Frank Spano
|04 June 2010||FWN-Building 5113.0202, Nijenborgh 4, 9747 AG, Groningen|
|Speaker:||Prof. Dr. Frank Spano|
|Affiliation:||Temple University, Philadelphia, USA|
|Title:||Understanding exciton coherence in molecular H- and J-aggregates: Applications to polyacenes|
|Date:||Fri Jun 4, 2010|
|Telephone:||+31 50 363 4369|
Coherent exciton transport in molecular assemblies is highly prized since it occurs on much faster timescales than incoherent or diffusive hopping and can therefore be exploited to optimize devices like organic light emitting diodes and solar cells.
In this talk, it is shown how the exciton coherence length can be simply and directly obtained from the shape of the photoluminscence spectrum in a range of technologically important materials. Applications are made to anthracene and tetracene thin films which behave in many ways like molecular J-aggregates.
|Last modified:||22 October 2012 2.30 p.m.|