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Mechanical Integrity of Hybrid Components used in Flexible Optoelectronic Devices

  • Konstantinos A Sierros (a1), Nicholas J Morris (a2), J Stuart Abell (a3), Darran R Cairns (a4) and Stephen N. Kukureka (a5)...

Abstract

Fabrication of truly flexible optoelectronic devices, such as flexible displays and flexible photovoltaics, is highly dependent on the mechanical integrity of individual thin inorganic/organic hybrid device components. A common feature of almost all thin composite film components for flexible optoelectronic applications is indium tin oxide (ITO) coated on polyester.

The mechanical mismatch of the ITO ceramic coating, a few tens of nm thick, with the polyester, either polyethylene terephthalate (PET) or polyethylene naphthalate (PEN), 125 ìm thick, causes the flexible functional structure to fail at moderately low strains under various, externally applied, stress states. It is therefore important to assess the mechanical integrity of such hybrid systems experimentally. We report on the electromechanical behavior of such hybrid systems.

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1. Cairns, Darran R., Witte, Richard P. II, Sparacin, Daniel K., Sachsman, Suzanne M., Paine, David C., Crawford, Gregory P., Newton, R.R.. Applied Physics Letters, Volume 76, Number 11, 13 March 2000, pp. 14251427
2. Bouten, Piet C. P.. Eurodisplay 2002, Society of Information Display, Nice, France, 2002 (unpublished)
3. Chen, Zhong, Cotterel, Brian and Wang, Wei. Engineering Fracture Mechanics, 69 (2002) 597603
4. Sierros, Konstantinos A., Abell, J. Stuart and Kukureka, Stephen N.. Eurodisplay 2005, Society of Information Display, Edinburgh, UK, 2005 (unpublished)
5. Cairns, Darran R. and Crawford, Gregory P.. Proceedings of the IEEE, Vol. 93, No 8, August 2005, p. 1451
6. Ramji, Karpagavalli, Cairns, Darran R., Sierros, Konstantinos A. and Kukureka, Stephen N.. SID Symposium Digest 38, 2007, p. 1790
7. Aziz, H. and Xu, G.. Synthetic Metals, Vol. 80, 1996, pp. 710

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Mechanical Integrity of Hybrid Components used in Flexible Optoelectronic Devices

  • Konstantinos A Sierros (a1), Nicholas J Morris (a2), J Stuart Abell (a3), Darran R Cairns (a4) and Stephen N. Kukureka (a5)...

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