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dc.contributor.authorRajendran, Sai Kiran
dc.contributor.authorWei, Mengjie
dc.contributor.authorOhadi, Hamid
dc.contributor.authorRuseckas, Arvydas
dc.contributor.authorTurnbull, Graham A.
dc.contributor.authorSamuel, Ifor D. W.
dc.identifier.citationRajendran , S K , Wei , M , Ohadi , H , Ruseckas , A , Turnbull , G A & Samuel , I D W 2019 , ' Low threshold polariton lasing from a solution-processed organic semiconductor in a planar microcavity ' , Advanced Optical Materials , vol. 7 , no. 12 , 1801791 , pp. 1-7 .
dc.identifier.otherPURE: 258223895
dc.identifier.otherPURE UUID: 11ee60ff-56bc-4fc5-ab4d-2d6381329bc8
dc.identifier.otherORCID: /0000-0001-9114-3522/work/56639036
dc.identifier.otherORCID: /0000-0001-6418-111X/work/56639150
dc.identifier.otherScopus: 85064515247
dc.identifier.otherWOS: 000471918700007
dc.identifier.otherORCID: /0000-0002-9079-120X/work/100172724
dc.descriptionFunding: UK EPSRC hybrid polaritonics program grant (EP/M025330/1)en
dc.description.abstractOrganic semiconductor materials have been widely studied for light emission and lasing due to their ability to tune the emission wavelength through chemical structural modification and their relative ease of fabrication. Strong light-matter coupling is a promising route towards a coherent light source because it has the potential for thresholdless polariton lasing. However, the materials studied so far have relatively high thresholds for polariton lasing. Here we report the suitability of pentafluorene for strong coupling and low threshold polariton lasing. We use a protective buffer layer to reduce degradation during fabrication and lower the lasing threshold using negative detuning to maximize radiative decay. We obtain a low threshold of 17 µJ cm-2, corresponding to an absorbed energy density of 11.7 µJ cm-2. This study shows that pentafluorene is an attractive material for polariton lasing and will assist in the development of low threshold electrically pumped lasing from polariton devices.
dc.relation.ispartofAdvanced Optical Materialsen
dc.rights© 2019 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim. This work has been made available online in accordance with the publisher’s policies. This is the author created, accepted version manuscript following peer review and may differ slightly from the final published version. The final published version of this work is available at
dc.subjectLow thresholden
dc.subjectOrganic semiconductorsen
dc.subjectPolariton lasingen
dc.subjectStrong couplingen
dc.subjectQC Physicsen
dc.titleLow threshold polariton lasing from a solution-processed organic semiconductor in a planar microcavityen
dc.typeJournal articleen
dc.contributor.institutionUniversity of St Andrews. School of Physics and Astronomyen
dc.contributor.institutionUniversity of St Andrews. Condensed Matter Physicsen
dc.contributor.institutionUniversity of St Andrews. Centre for Biophotonicsen
dc.description.statusPeer revieweden

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