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dc.contributor.authorSreekanth, Kandammathe Valiyaveeduen_US
dc.contributor.authorMedwal, Rohiten_US
dc.contributor.authorSrivastava, Yogesh Kumaren_US
dc.contributor.authorManjappa, Manukumaraen_US
dc.contributor.authorRawat, Rajdeep Singhen_US
dc.contributor.authorSingh, Ranjanen_US
dc.identifier.citationSreekanth, K. V., Medwal, R., Srivastava, Y. K., Manjappa, M., Rawat, R. S. & Singh, R. (2021). Dynamic color generation with electrically tunable thin film optical coatings. Nano Letters, 21(23), 10070-10075.
dc.description.abstractThin film optical coatings have a wide range of industrial applications from displays and lighting to photovoltaic cells. The realization of electrically tunable thin film optical coatings in the visible wavelength range is particularly important to develop energy efficient and dynamic color filters. Here, we experimentally demonstrate dynamic color generation using electrically tunable thin film optical coatings that consist of two different phase change materials (PCMs). The proposed active thin film nanocavity excites the Fano resonance that results from the coupling of a broadband and a narrowband absorber made up of phase change materials. The Fano resonance is then electrically tuned by structural phase switching of PCM layers to demonstrate active color filters covering the entire visible spectrum. In contrast to existing thin film optical coatings, the developed electrically tunable PCM based Fano resonant thin optical coatings have several advantages in tunable displays and active nanophotonic applications.en_US
dc.description.sponsorshipAgency for Science, Technology and Research (A*STAR)en_US
dc.description.sponsorshipNational Research Foundation (NRF)en_US
dc.relation.ispartofNano Lettersen_US
dc.rightsThis document is the Accepted Manuscript version of a Published Work that appeared in final form in Nano Letters, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see
dc.titleDynamic color generation with electrically tunable thin film optical coatingsen_US
dc.typeJournal Articleen
dc.contributor.schoolSchool of Physical and Mathematical Sciencesen_US
dc.contributor.researchCentre for Disruptive Photonic Technologies (CDPT)en_US
dc.contributor.researchThe Photonics Instituteen_US
dc.description.versionAccepted versionen_US
dc.subject.keywordsThin Film Optical Coatingsen_US
dc.subject.keywordsElectrical Control of Colorsen_US
dc.subject.keywordsFano Resonanceen_US
dc.subject.keywordsPhase Change Materialsen_US
dc.subject.keywordsTunable Optical Structuresen_US
dc.subject.keywordsColor Filters Microheatersen_US
dc.description.acknowledgementThe authors acknowledge the funding support from Advanced Manufacturing and Engineering (AME) Programmatic grant (A18A5b0056) by Agency for Science, Technology and Research (A*STAR) and the National Research Foundation Singapore (Award No.: NRF-CRP23-2019-0005).en_US
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Dynamic color generation_Supporting Information.pdf
  Until 2022-12-15
Accepted supporting information1.17 MBAdobe PDFUnder embargo until Dec 15, 2022
Dynamic color generation_Manuscript file.pdf
  Until 2022-12-15
Accepted manuscript1.82 MBAdobe PDFUnder embargo until Dec 15, 2022

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