Large-Scale Orientation Dependent Heating from a Single Irradiated Gold Nanorod

TY - JOUR

T1 - Large-Scale Orientation Dependent Heating from a Single Irradiated Gold Nanorod

AU - Ma, Haiyan

AU - Bendix, Pól Martin

AU - Oddershede, Lene Broeng

PY - 2012/8/8

Y1 - 2012/8/8

N2 - We quantify the extreme heating associated with resonant irradiation of individual gold nanorods by using a novel assay based on partitioning of lipophilic dyes between membrane phases. The temperature increase is sensitively dependent on the angle between the laser polarization and the orientation of the nanorod. A dramatic and irreversible decrease in the heating of a nanorod occurs at high-illumination intensities; this effect is attributed to surface melting of the nanorod causing it to restructure into a more spherical shape and lose its extreme photothermal properties.

AB - We quantify the extreme heating associated with resonant irradiation of individual gold nanorods by using a novel assay based on partitioning of lipophilic dyes between membrane phases. The temperature increase is sensitively dependent on the angle between the laser polarization and the orientation of the nanorod. A dramatic and irreversible decrease in the heating of a nanorod occurs at high-illumination intensities; this effect is attributed to surface melting of the nanorod causing it to restructure into a more spherical shape and lose its extreme photothermal properties.

M3 - Journal article

SN - 1530-6984

VL - 12

SP - 3954

EP - 3960

JO - Nano Letters

JF - Nano Letters

IS - 8

ER -