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Natural optical activity as the origin of the large chiroptical properties in π-conjugated polymer thin films.
Wade, Jessica; Hilfiker, James N; Brandt, Jochen R; Liirò-Peluso, Letizia; Wan, Li; Shi, Xingyuan; Salerno, Francesco; Ryan, Seán T J; Schöche, Stefan; Arteaga, Oriol; Jávorfi, Tamás; Siligardi, Giuliano; Wang, Cheng; Amabilino, David B; Beton, Peter H; Campbell, Alasdair J; Fuchter, Matthew J.
Afiliación
  • Wade J; Department of Physics, Imperial College London, South Kensington Campus, London, SW7 2AZ, UK.
  • Hilfiker JN; Centre for Processable Electronics, Imperial College London, South Kensington Campus, London, SW7 2AZ, UK.
  • Brandt JR; J.A. Woollam Co. Inc., 645M Street, Suite 102, Lincoln, NE, 68508-2243, USA.
  • Liirò-Peluso L; Centre for Processable Electronics, Imperial College London, South Kensington Campus, London, SW7 2AZ, UK.
  • Wan L; Department of Chemistry and Molecular Sciences Research Hub, Imperial College London, White City Campus, 82 Wood Lane, London, W12 0BZ, UK.
  • Shi X; School of Chemistry & The GSK Carbon Neutral Laboratories for Sustainable Chemistry, University of Nottingham, Triumph Road, Nottingham, NG7 2TU, UK.
  • Salerno F; School of Physics and Astronomy, University of Nottingham, University Park, Nottingham, NG7 2RD, UK.
  • Ryan STJ; Department of Physics, Imperial College London, South Kensington Campus, London, SW7 2AZ, UK.
  • Schöche S; Centre for Processable Electronics, Imperial College London, South Kensington Campus, London, SW7 2AZ, UK.
  • Arteaga O; Centre for Processable Electronics, Imperial College London, South Kensington Campus, London, SW7 2AZ, UK.
  • Jávorfi T; Department of Chemistry and Molecular Sciences Research Hub, Imperial College London, White City Campus, 82 Wood Lane, London, W12 0BZ, UK.
  • Siligardi G; Centre for Processable Electronics, Imperial College London, South Kensington Campus, London, SW7 2AZ, UK.
  • Wang C; Department of Chemistry and Molecular Sciences Research Hub, Imperial College London, White City Campus, 82 Wood Lane, London, W12 0BZ, UK.
  • Amabilino DB; Department of Chemistry and Molecular Sciences Research Hub, Imperial College London, White City Campus, 82 Wood Lane, London, W12 0BZ, UK.
  • Beton PH; J.A. Woollam Co. Inc., 645M Street, Suite 102, Lincoln, NE, 68508-2243, USA.
  • Campbell AJ; Departament de Física Aplicada, Universitat de Barcelona, IN2UB, Barcelona, 08028, Spain.
  • Fuchter MJ; Diamond Light Source, Harwell Science and Innovation Campus, Didcot, Oxfordshire, OX11 0DE, UK.
Nat Commun ; 11(1): 6137, 2020 12 01.
Article en En | MEDLINE | ID: mdl-33262352
Polymer thin films that emit and absorb circularly polarised light have been demonstrated with the promise of achieving important technological advances; from efficient, high-performance displays, to 3D imaging and all-organic spintronic devices. However, the origin of the large chiroptical effects in such films has, until now, remained elusive. We investigate the emergence of such phenomena in achiral polymers blended with a chiral small-molecule additive (1-aza[6]helicene) and intrinsically chiral-sidechain polymers using a combination of spectroscopic methods and structural probes. We show that - under conditions relevant for device fabrication - the large chiroptical effects are caused by magneto-electric coupling (natural optical activity), not structural chirality as previously assumed, and may occur because of local order in a cylinder blue phase-type organisation. This disruptive mechanistic insight into chiral polymer thin films will offer new approaches towards chiroptical materials development after almost three decades of research in this area.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Nat Commun Asunto de la revista: BIOLOGIA / CIENCIA Año: 2020 Tipo del documento: Article Pais de publicación: Reino Unido
Texto completo
Añadir a Mi BVS
Imprimir
XML
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Nat Commun Asunto de la revista: BIOLOGIA / CIENCIA Año: 2020 Tipo del documento: Article Pais de publicación: Reino Unido