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Capturing the Interplay Between TADF and RTP Through Mechanically Flexible Polymorphic Optical Waveguides.
Vinod Kumar, Avulu; Pattanayak, Pradip; Khapre, Ankur; Nandi, Arnab; Purkayastha, Pradipta; Chandrasekar, Rajadurai.
Afiliación
  • Vinod Kumar A; Advanced Photonic Materials and Technology Laboratory, School of Chemistry and Centre for Nanotechnology, University of Hyderabad, Prof. C. R. Rao Road, Gachibowli, Hyderabad, 500046, Telangana, India.
  • Pattanayak P; Department of Chemical Sciences and Center for Advanced Functional Materials, Indian Institute of Science Education and Research, Kolkata, Mohanpur, 741246, West Bengal, India.
  • Khapre A; Advanced Photonic Materials and Technology Laboratory, School of Chemistry and Centre for Nanotechnology, University of Hyderabad, Prof. C. R. Rao Road, Gachibowli, Hyderabad, 500046, Telangana, India.
  • Nandi A; Department of Chemical Sciences and Center for Advanced Functional Materials, Indian Institute of Science Education and Research, Kolkata, Mohanpur, 741246, West Bengal, India.
  • Purkayastha P; Department of Chemical Sciences and Center for Advanced Functional Materials, Indian Institute of Science Education and Research, Kolkata, Mohanpur, 741246, West Bengal, India.
  • Chandrasekar R; Advanced Photonic Materials and Technology Laboratory, School of Chemistry and Centre for Nanotechnology, University of Hyderabad, Prof. C. R. Rao Road, Gachibowli, Hyderabad, 500046, Telangana, India.
Angew Chem Int Ed Engl ; : e202411054, 2024 Jun 26.
Article en En | MEDLINE | ID: mdl-38924274
ABSTRACT
Polymorphism plays a pivotal role in generating a range of crystalline materials with diverse photophysical and mechanical attributes, all originating from the same molecule. Here, we showcase two distinct polymorphs green (GY) emissive and orange (OR) emissive crystals of 5'-(4-(diphenylamino)phenyl)-[2,2'-bithiophene]-5-carbaldehyde (TPA-CHO). These polymorphs display differing optical characteristics, with GY exhibiting thermally activated delayed fluorescence (TADF) and OR showing room temperature phosphorescence (RTP). Additionally, both polymorphic crystals display mechanical flexibility and optical waveguiding capabilities. Leveraging the AFM-tip-based mechanophotonics technique, we position the GY optical waveguide at varying lengths perpendicular to the OR waveguide. This approach facilitates the exploration of the interplay between TADF and RTP phenomena by judiciously controlling the optical path length of crystal waveguides. Essentially, our approach provides a clear pathway for understanding and controlling the photophysical processes in organic molecular crystals, paving the way for advancements in polymorphic crystal-based photonic circuit technologies.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Angew Chem Int Ed Engl Año: 2024 Tipo del documento: Article País de afiliación: India Pais de publicación: Alemania
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: Angew Chem Int Ed Engl Año: 2024 Tipo del documento: Article País de afiliación: India Pais de publicación: Alemania