Green polariton photoluminescence in organic microcavities containing the red-emitting phosphor PtOEP

ORAL

Abstract

Green upper and lower branch polariton photoluminescence (PL) is observed in microcavities containing the red-emitting organic phosphor 2,3,7,8,12,13,17,18-octaethyl-21H, 23H-porphyrin platinum(II) (PtOEP). This PL is attributed to cavity polariton states formed by coupling to the Q(0,0) transition of PtOEP (fluorescence). The PL spectra mirror the polariton dispersion obtained from angle-resolved reflectivity measurements. The increased fluorescence intensity compared to the neat film case is due to the reduced lifetime of the polariton states. This PL is also accompanied by strong red emission (phosphorescence) due to intersystem crossing (ISC) to the triplet state of PtOEP.

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Authors

  • Stephane Kena-Cohen

    Department of Electrical Engineering, Princeton University, Princeton, NJ 08544

  • Stephen Forrest

    University of Michigan, Ann Arbor and Princeton University, Departments of Electrical Engineering and Computer Science and Physics, University of Michigan, Ann Arbor, MI, Departments of EECS \& Physics, University of Michigan, Ann Arbor, Department of EECS and Physics, University of Michigan, Ann Arbor, MI 48109, University of Michigan