Deposition of β-Polyfluorene by Resonant Infrared Matrix-Assisted Pulsed Laser Evaporation

  • Spencer Ferguson
  • Cassandra V. Williams
  • Bataung Mohapi
  • Adrienne D. Stiff-RobertsEmail author
Topical Collection: 60th Electronic Materials Conference 2018
Part of the following topical collections:
  1. 60th Electronic Materials Conference


Emulsion-based, resonant infrared matrix-assisted pulsed laser evaporation (RIR-MAPLE) was used to deposit thin films of polyfluorene (PFO) with semi-crystalline phase domains (β-PFO), which has been performed, previously, only by solution phase processing. Various target emulsion recipes were studied, with emphasis on the primary solvent choice, emulsion mixing time, secondary solvent concentration, or total water concentration. The emulsified particle size for each recipe was compared using dynamic light scattering. Additionally, elevated growth temperature of the substrate was considered for controlling film formation. The surface quality of films was determined by atomic force microscopy, and β-PFO concentration was monitored using photoluminescence or UV–visible absorbance spectroscopy. Importantly, in contrast to solution-based deposition of β-PFO in thin films, emulsion-based RIR-MAPLE demonstrated the ability to increase β-PFO content without degrading, simultaneously, the surface properties of the films. This initial result helps establish the ability of RIR-MAPLE to control and promote semi-crystalline phases in polymer films.


RIR-MAPLE matrix-assisted pulsed laser evaporation PFO polyfluorene emulsions semi-crystalline phases 


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This material is based upon work supported by the National Science Foundation under Grant No. NSF CMMI-1727572.


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© The Minerals, Metals & Materials Society 2019

Authors and Affiliations

  1. 1.Department of Electrical and Computer EngineeringDuke UniversityDurhamUSA
  2. 2.Department of Mechanical Engineering and Materials ScienceDuke UniversityDurhamUSA
  3. 3.University Program in Materials Science and EngineeringDuke UniversityDurhamUSA

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