Printing of Organic Electronic Displays.

Lead Research Organisation: Durham University
Department Name: Chemistry

Abstract

Objective: A predictive understanding of the formulation of inks to produce a desired morphology and functionality after drying of the ink
Research questions: How do the physical properties of a fluid or fluid mixture (e.g. viscosity, vapour pressure, surface tension) affect the drying process? How can one control the way that dissolved materials precipitate from solution? How are particles transported in a drying droplet or fluid film?
Approach: Use inkjet printing to deposit liquids with or without active ingredients on planar or patterned surfaces. Use a combination of high-speed imaging, particle tracking and interferometry to measure quantitatively the fluid mechanics of the drying process, and optical microscopy, SEM and spectroscopy to characterise the morphology of the deposit. In collaboration with mathematicians, develop theoretical models for comparison with experimental data.
Novel content: fluid mechanics of drying droplets; formulation of inks for manufacture of functional devices; quantitative understanding of Marangoni flows and diffusiophoresis (particle migration); design of digital manufacturing systems
EPSRC research areas: complex fluids and rheology; fluid dynamics and aerodynamics; biophysics and soft matter physics; displays; manufacturing technologies

Publications

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Studentship Projects

Project Reference Relationship Related To Start End Student Name
EP/R512527/1 01/10/2017 30/09/2021
2044413 Studentship EP/R512527/1 01/10/2017 30/09/2021 Teresa Colosimo