Fabrication and characterization of vertical microcavities containing a submicron particle film of 5,5′-di(4-biphenylyl)-2,2′-bithiophene

We show the first experimental evidence that submicron particles (diameter: approximately 400 nm) using 5,5′-di(4-biphenylyl)-2,2′-bithiophene (BP2T) prepared by a miniemulsion technique are effective active media for vertical microcavities. Selected area electron diffraction patterns confirm that c...

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Bibliographic Details
Published inJapanese Journal of Applied Physics Vol. 59; no. SD; p. SDDA14
Main Authors Mizuno, Hitoshi, Jinjyo, Tomomi, Laurio, Christian M., Katsuki, Hiroyuki, Hiromitsu, Ichiro, Sasaki, Fumio, Yanagi, Hisao
Format Journal Article
LanguageEnglish
Published Tokyo IOP Publishing 01.03.2020
Japanese Journal of Applied Physics
Subjects
Diameters
Diffraction patterns
Electron diffraction
Microcavities
Photoluminescence
Polyvinyl alcohol
Static electricity
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Summary:We show the first experimental evidence that submicron particles (diameter: approximately 400 nm) using 5,5′-di(4-biphenylyl)-2,2′-bithiophene (BP2T) prepared by a miniemulsion technique are effective active media for vertical microcavities. Selected area electron diffraction patterns confirm that crystalline BP2T submicron particles are obtained. In a distributed Bragg reflector-Au microcavity with BP2T submicron particles embedded in a poly(vinyl alcohol) (PVA) matrix (thickness: ∼780 nm), gain-narrowed emissions are observed at the 0-3 emission band of BP2T above an excitation density of 107 J cm−2. The light amplification of 0-3 photoluminescence band obtained in the present study demonstrates that the PVA film containing the BP2T submicron particles is useful as an active medium for microcavities.
Bibliography:JJAP-S1101198.R2
ISSN:0021-4922
1347-4065
DOI:10.7567/1347-4065/ab5c63