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dc.contributor.authorLi, Yuelin
dc.contributor.authorLin, Xiao-Min
dc.contributor.authorWen, Haidan
dc.contributor.authorWalko, Donald A.
dc.contributor.authorDeshmukh, Sanket A.
dc.contributor.authorSubbaraman, Ram
dc.contributor.authorSankaranarayanan, Subramanian K. R. S.
dc.contributor.authorGray, Stephen K.
dc.contributor.authorHo, Phay
dc.description.abstractMany potential industrial, medical, and environmental applications of metal nanorods rely on the physics and resultant kinetics and dynamics of the interaction of these particles with light. We report a surprising kinetics transition in the global melting of femtosecond laser-driven gold nanorod aqueous colloidal suspension. At low laser intensity, the melting exhibits a stretched exponential kinetics, which abruptly transforms into a compressed exponential kinetics when the laser intensity is raised. It is found the relative formation and reduction rate of intermediate shapes play a key role in the transition. Supported by both molecular dynamics simulations and a kinetic model, the behavior is traced back to the persistent heterogeneous nature of the shape dependence of the energy uptake, dissipation and melting of individual nanoparticles. These results could have significant implications for various applications such as water purification and electrolytes for energy storage that involve heat transport between metal nanorod ensembles and surrounding solvents.en_US
dc.description.sponsorshipThis work was performed, in part, at the Advanced Photon Source, the Center for Nanoscale Materials, and Argonne Leadership Computing Facility, all U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences User Facilities, under Contract No. DE-AC02-06CH11357. The authors thank Jan Ilavsky and Byeongdu Lee for insightful discussion and Harold Gibson for technical help.en_US
dc.rightsAttribution-NonCommercial-NoDerivs 3.0 United States*
dc.subjectPhase transitions and critical phenomenaen_US
dc.subjectFluid dynamicsen_US
dc.subjectNonlinear phenomenaen_US
dc.titleFemtosecond Laser Pulse Driven Melting in Gold Nanorod Aqueous Colloidal Suspension: Identification of a Transition from Stretched to Exponential Kineticsen_US
dc.typeArticle - Refereeden_US
dc.title.serialScientific Reportsen_US

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