61‐1: Invited Paper: Polaritonic OLEDs with Assistant Strong‐coupling Layers: A New Approach to Sub‐20nm Emission Linewidth in OLED Displays

With ever more stringent color‐gamut requirements in displays (e.g., BT.2100), there is growing demand for OLEDs with narrowband emission. However, many efficient emitters reported to date show spectrally broad luminescence. Micro‐cavity OLEDs offer narrow linewidth but suffer from changes in spectr...

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Bibliographic Details
Published inSID International Symposium Digest of technical papers Vol. 55; no. 1; pp. 835 - 837
Main Authors Mischok, Andreas, Hillebrandt, Sabina, Kwon, Seonil, Gather, Malte C.
Format Journal Article
LanguageEnglish
Published Campbell Wiley Subscription Services, Inc 01.06.2024
Subjects
BT.2100
color gamut
Coupling
Displays
Emission
Emitters
Excitation spectra
Excitons
Narrowband
OLED
polariton
Polaritons
Spectral emittance
strong light matter coupling
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ISSN0097-966X
2168-0159
DOI10.1002/sdtp.17660

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Summary:With ever more stringent color‐gamut requirements in displays (e.g., BT.2100), there is growing demand for OLEDs with narrowband emission. However, many efficient emitters reported to date show spectrally broad luminescence. Micro‐cavity OLEDs offer narrow linewidth but suffer from changes in spectrum with observation angle. To overcome these limitations, we hybridize microcavity and exciton states in an efficient OLED, thus creating strongly coupled polariton states that inherit the angle insensitivity of excitons and the narrow linewidth of the microcavity. Using assistant strong‐coupling layers located away from the recombination zone yields efficient OLEDs with FWHM <20 nm and angle shift <10 nm @60° tilt.
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ISSN:0097-966X
2168-0159
DOI:10.1002/sdtp.17660