Ontology highlight
ABSTRACT:
SUBMITTER: Pandya R
PROVIDER: S-EPMC7132576 | biostudies-literature | 2020 Apr
REPOSITORIES: biostudies-literature
Pandya Raj R Chen Richard Y S RYS Gu Qifei Q Gorman Jeffrey J Auras Florian F Sung Jooyoung J Friend Richard R Kukura Philipp P Schnedermann Christoph C Rao Akshay A
The journal of physical chemistry. A 20200318 13
We present a statistical analysis of femtosecond transient absorption microscopy applied to four different organic semiconductor thin films based on perylene-diimide (PDI). By achieving a temporal resolution of 12 fs with simultaneous sub-10 nm spatial precision, we 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 cm<sup>2</sup> s<sup>-1</sup>) followed b ...[more]