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Femtosecond transient absorption microscopy of singlet exciton motion in side-chain engineered perylene-diimide thin films

Abstract:

We present a statistical analysis of femtosecond transient absorption microscopy applied to four different organic semiconductor thin films based on perylene-diimide (PDI). We achieve a temporal resolution of 12 fs with simultaneous sub-10 nm spatial precision, which enables us to directly probe the underlying exciton transport characteristics within 3 ps after photoexcitation free of model assumptions. Our study reveals sub-picosecond coherent exciton transport (12 – 45 cm2 s-1) followed by ...

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Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.1021/acs.jpca.0c00346

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Name:
European Commission
Grant:
813152
Publisher:
American Chemical Society
Journal:
Journal of Physical Chemistry A More from this journal
Volume:
124
Issue:
13
Pages:
2721–2730
Publication date:
2020-03-04
Acceptance date:
2020-03-01
DOI:
EISSN:
1520-5215
ISSN:
1089-5639
Language:
English
Keywords:
Pubs id:
1091290
Local pid:
pubs:1091290
Deposit date:
2020-03-06

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