Spray-coating deposition techniques for polymeric semiconductor blends

Gavin Bernardin, Nathan Davies, Christopher Finlayson

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We develop a universal method for spray-deposition of polymeric semiconductor blends, based on blends of polyfluorenes (F8TBT), polythiophenes (P3HT) and fullerenes (PCBM), as suitable for large areas. A multi-faceted characterisation approach, studying photoluminescence quenching, together with atomic force and optical microscopy, illustrates favourable results in terms of layer thickness, uniformity, and mesoscale morphology. With key engineering tolerances in mind, thermal (melt) and solvent-vapour annealing are investigated as post-processing methods, for improving the planarity of craterform layers and blend photophysical characteristics
Original languageEnglish
Pages (from-to)174-180
Number of pages7
JournalMaterials Science in Semiconductor Processing
Early online date01 Aug 2017
Publication statusPublished - 15 Nov 2017


  • spray-coating
  • polymer blends
  • annealing methods
  • thin-films
  • conjugated polymers


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