Journal article

Solvent-Engineered Stress in Nanoscale Materials

Shaun Mills, Chiara Rotella, Eoin K McCarthy, David J Hil, Jing-Jing Wang, John F Donegan, James F Cahoon, John E Sader, John J Boland

ACS APPLIED MATERIALS & INTERFACES | AMER CHEMICAL SOC | Published : 2018

Abstract

Nanoscale materials are frequently coated with surface stabilization layers during growth that prevent flocculation in solution and facilitate processing technologies such as ink-jet device printing. Here, we show that few-nanometer-thick stabilization layers typically used swell in the presence of certain solvents and impart significant stresses to the nanomaterial that remains even after the solvent has evaporated. Solvent swelling of the surface layer dramatically enhances nanomaterial-substrate adhesion via the collapse of the stabilization layer during solvent evaporation, preventing stress relaxation. We demonstrate the stress modulation of Ag, Au, and Si nanowires functionalised with ..

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University of Melbourne Researchers

Grants

Awarded by Science Foundation Ireland


Awarded by European Research Council


Awarded by Australian Research Council Center of Excellence in Exciton Science


Awarded by National Science Foundation


Funding Acknowledgements

This work was financially supported in part by a research grant from Science Foundation Ireland (12/IA/1482), the European Research Council under the Advanced Grant 321160, and through the generous support of the Naughton Foundation. We acknowledge support from the Australian Research Council Center of Excellence in Exciton Science (CE170100026) and the Australian Council grants scheme. J.F.C. and D.J.H. acknowledge support by the National Science Foundation (DMR-1555001). We would also like to thank the staff at the Advanced Microscopy Lab (AML) at Trinity College Dublin.