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Performance Improvements in Conjugated Polymer Devices by Removal of Water-Induced Traps.
Nikolka, Mark; Schweicher, Guillaume; Armitage, John; Nasrallah, Iyad; Jellett, Cameron; Guo, Zhijie; Hurhangee, Michael; Sadhanala, Aditya; McCulloch, Iain; Nielsen, Christian B; Sirringhaus, Henning.
Afiliación
  • Nikolka M; Optoelectronics Group, Cavendish Laboratory, JJ Thomson Avenue, Cambridge, CB3 0HE, UK.
  • Schweicher G; Optoelectronics Group, Cavendish Laboratory, JJ Thomson Avenue, Cambridge, CB3 0HE, UK.
  • Armitage J; Optoelectronics Group, Cavendish Laboratory, JJ Thomson Avenue, Cambridge, CB3 0HE, UK.
  • Nasrallah I; Optoelectronics Group, Cavendish Laboratory, JJ Thomson Avenue, Cambridge, CB3 0HE, UK.
  • Jellett C; Department of Chemistry and Centre for Plastic Electronics Imperial College London, Exhibition Road, London, SW7 2AZ, UK.
  • Guo Z; Dr. C. B. Nielsen, Materials Research Institute and School of Biological and Chemical Sciences, Queen Mary University of London, Mile End Road, London, E1 4NS, UK.
  • Hurhangee M; Department of Chemistry and Centre for Plastic Electronics Imperial College London, Exhibition Road, London, SW7 2AZ, UK.
  • Sadhanala A; Optoelectronics Group, Cavendish Laboratory, JJ Thomson Avenue, Cambridge, CB3 0HE, UK.
  • McCulloch I; Department of Chemistry and Centre for Plastic Electronics, Imperial College London, Exhibition Road, London, SW7 2AZ, UK.
  • Nielsen CB; King Abdullah University of Science and Technology (KAUST), Kaust Solar Center (KSC), Thuwal, 23955-6900, Saudi Arabia.
  • Sirringhaus H; Dr. C. B. Nielsen, Materials Research Institute and School of Biological and Chemical Sciences, Queen Mary University of London, Mile End Road, London, E1 4NS, UK.
Adv Mater ; : e1801874, 2018 Jul 18.
Article en En | MEDLINE | ID: mdl-30022541
The exploration of a wide range of molecular structures has led to the development of high-performance conjugated polymer semiconductors for flexible electronic applications including displays, sensors, and logic circuits. Nevertheless, many conjugated polymer field-effect transistors (OFETs) exhibit nonideal device characteristics and device instabilities rendering them unfit for industrial applications. These often do not originate in the material's intrinsic molecular structure, but rather in external trap states caused by chemical impurities or environmental species such as water. Here, a highly efficient mechanism is demonstrated for the removal of water-induced traps that are omnipresent in conjugated polymer devices even when processed in inert environments; the underlying mechanism is shown, by which small-molecular additives with water-binding nitrile groups or alternatively water-solvent azeotropes are capable of removing water-induced traps leading to a significant improvement in OFET performance. It is also shown how certain polymer structures containing strong hydrogen accepting groups will suffer from poor performances due to their high susceptibility to interact with water molecules; this allows the design guidelines for a next generation of stable, high-performing conjugated polymers to be set forth.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Adv Mater Asunto de la revista: BIOFISICA / QUIMICA Año: 2018 Tipo del documento: Article 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: Adv Mater Asunto de la revista: BIOFISICA / QUIMICA Año: 2018 Tipo del documento: Article Pais de publicación: Alemania