Charged Polaron Polaritons in an Organic Semiconductor Microcavity

Chiao Yu Cheng, Rijul Dhanker, Christopher L. Gray, Sukrit Mukhopadhyay, Eric R. Kennehan, John B. Asbury, Anatoliy Sokolov, Noel C. Giebink

Research output: Contribution to journalArticlepeer-review

23 Scopus citations


We report strong coupling between light and polaron optical excitations in a doped organic semiconductor microcavity at room temperature. Codepositing MoO3 and the hole transport material 4, 4′-cyclohexylidenebis[N, N-bis(4-methylphenyl)benzenamine] introduces a large hole density with a narrow linewidth optical transition centered at 1.8 eV and an absorption coefficient exceeding 104 cm-1. Coupling this transition to a Fabry-Pérot cavity mode yields upper and lower polaron polariton branches that are clearly resolved in angle-dependent reflectivity with a vacuum Rabi splitting ΩR>0.3 eV. This result establishes a path to electrically control polaritons in organic semiconductors and may lead to increased polariton-polariton Coulombic interactions that lower the threshold for nonlinear phenomena such as polariton condensation and lasing.

Original languageEnglish (US)
Article number017402
JournalPhysical review letters
Issue number1
StatePublished - Jan 3 2018

All Science Journal Classification (ASJC) codes

  • General Physics and Astronomy


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