Molecular packing-dependent exciton and polariton dynamics in anthradithiophene organic crystals

Jonathan D.B. Van Schenck, Gregory Giesbers, Akash Kannegulla, Li Jing Cheng, John E. Anthony, Oksana Ostroverkhova

Research output: Contribution to journalArticlepeer-review

7 Scopus citations


Polarization-dependent absorption spectra of two functionalized derivatives of fluorinated anthradithiophene, diF TES-ADT and diF TDMS-ADT, were studied in the crystal phase using a Holstein-like Hamiltonian. For both molecules, the primary contribution to the lowest energy absorption was found to be the S0-S1 excitonic transition perturbed by an intermolecular coupling of 15 meV for both TES and TDMS. A secondary contribution, consistent with that from charge-transfer states, was also found. Additionally, absorption spectra were analysed when crystals were placed inside of optical microcavities formed by two metal mirrors. Cavities exhibited a primary absorption peak determined to be an enhanced absorption from the lowest-energy S0-S1 transition.

Original languageEnglish
Pages (from-to)3465-3470
Number of pages6
JournalMRS Advances
Issue number59
StatePublished - 2018

Bibliographical note

Publisher Copyright:
© 2018 Materials Research Society.


  • crystalline
  • optical properties
  • organic
  • photonic

ASJC Scopus subject areas

  • Mechanical Engineering
  • Mechanics of Materials
  • General Materials Science
  • Condensed Matter Physics


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