The effects of acrylic acid on the electro-mechanical behaviour of ITO-coated polymer substrates for flexible display technologies

[摘要] The effects of acrylic acid on the electro-mechanical behaviour of commercial ITO/PET systems for use in thin flexible displays were investigated under uniaxial tension and monotonic bending under both tensile and compressive stresses of the ITO coated surface within the ITO/PET system.The tribological properties of these systems were also investigated using a fretting technique under dry sliding conditions via a customised High Frequency Reciprocating Rig.Changes in electrical resistance were monitored in situ.Ex situ SEM was conducted to provide surface characterisation of the mechanically-tested samples.The results showed when tested under tension the ITO/PET systems ability to resist strain was significantly reduced in both uniaxial tensile testing and monotonic bending after exposure to acrylic acid.The main failure mechanism is suggested to be stress-corrosion cracking.However when tested in compression, the exposure to acrylic acid was not seen to have an effect on the electro-mechanical properties.The tribological properties of these thin film systems were also seen to be affected by the exposure to acrylic acid as; the number of cycles to failure for the 300 Ω/ÿ sample was reduced from 570 cycles to 200 cycles.

[发布机构] University:University of Birmingham;Department:School of Metallurgy and Materials

[关键词] T Technology;T Technology (General)