Temperature dynamics of laser irradiated gold nanoparticles embedded in a polymer matrix

A.M.M. Gherman; N. Tosa; D.N. Dadarlat; V. Tosa; M.V. Cristea; P.S. Agachi

doi:10.1016/j.tca.2017.08.008

Temperature dynamics of laser irradiated gold nanoparticles embedded in a polymer matrix

A.M.M. Gherman, N. Tosa, D.N. Dadarlat, V. Tosa, M.V. Cristea, P.S. Agachi

Chemical, Materials & Metallurgical Engineering

Research output: Contribution to journal › Article › peer-review

5 Citations (Scopus)

Abstract

In this work the temperature evolution, in time and space, in two systems that consist of a single gold nanoparticle and an ensemble of gold nanoparticles, both embedded in a polystyrene sulfonic acid matrix, is numerically modeled. The heat accumulated by the gold nanoparticles is estimated considering the system irradiation with a nanosecond laser at 532 nm. The distribution of the temperature in time and space is calculated by solving the heat diffusion equations with appropriate initial and boundary conditions. The rise of nanoparticle size determined the temperature increase of the gold nanoparticle and implicitly of the entire system but also the increase of the necessary time for reaching the thermal equilibrium of the system related to the surrounding polymer volume. The temperature evolution and the dynamics of the system towards reaching the thermal equilibrium are influenced by the gold nanoparticles distribution in the polymer matrix.

Original language	English
Pages (from-to)	25-31
Number of pages	7
Journal	Thermochimica Acta
Volume	656
DOIs	https://doi.org/10.1016/j.tca.2017.08.008
Publication status	Published - 2017

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10.1016/j.tca.2017.08.008

https://www.scopus.com/inward/record.uri?eid=2-s2.0-85028403310&doi=10.1016%2fj.tca.2017.08.008&partnerID=40&md5=03d577b70d207549065803e62f025d07

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title = "Temperature dynamics of laser irradiated gold nanoparticles embedded in a polymer matrix",

abstract = "In this work the temperature evolution, in time and space, in two systems that consist of a single gold nanoparticle and an ensemble of gold nanoparticles, both embedded in a polystyrene sulfonic acid matrix, is numerically modeled. The heat accumulated by the gold nanoparticles is estimated considering the system irradiation with a nanosecond laser at 532 nm. The distribution of the temperature in time and space is calculated by solving the heat diffusion equations with appropriate initial and boundary conditions. The rise of nanoparticle size determined the temperature increase of the gold nanoparticle and implicitly of the entire system but also the increase of the necessary time for reaching the thermal equilibrium of the system related to the surrounding polymer volume. The temperature evolution and the dynamics of the system towards reaching the thermal equilibrium are influenced by the gold nanoparticles distribution in the polymer matrix. ",

author = "A.M.M. Gherman and N. Tosa and D.N. Dadarlat and V. Tosa and M.V. Cristea and P.S. Agachi",

note = "Export Date: 15 June 2018",

year = "2017",

doi = "10.1016/j.tca.2017.08.008",

language = "English",

volume = "656",

pages = "25--31",

journal = "Thermochimica Acta",

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T1 - Temperature dynamics of laser irradiated gold nanoparticles embedded in a polymer matrix

AU - Gherman, A.M.M.

AU - Tosa, N.

AU - Dadarlat, D.N.

AU - Tosa, V.

AU - Cristea, M.V.

AU - Agachi, P.S.

N1 - Export Date: 15 June 2018

PY - 2017

Y1 - 2017

N2 - In this work the temperature evolution, in time and space, in two systems that consist of a single gold nanoparticle and an ensemble of gold nanoparticles, both embedded in a polystyrene sulfonic acid matrix, is numerically modeled. The heat accumulated by the gold nanoparticles is estimated considering the system irradiation with a nanosecond laser at 532 nm. The distribution of the temperature in time and space is calculated by solving the heat diffusion equations with appropriate initial and boundary conditions. The rise of nanoparticle size determined the temperature increase of the gold nanoparticle and implicitly of the entire system but also the increase of the necessary time for reaching the thermal equilibrium of the system related to the surrounding polymer volume. The temperature evolution and the dynamics of the system towards reaching the thermal equilibrium are influenced by the gold nanoparticles distribution in the polymer matrix.

AB - In this work the temperature evolution, in time and space, in two systems that consist of a single gold nanoparticle and an ensemble of gold nanoparticles, both embedded in a polystyrene sulfonic acid matrix, is numerically modeled. The heat accumulated by the gold nanoparticles is estimated considering the system irradiation with a nanosecond laser at 532 nm. The distribution of the temperature in time and space is calculated by solving the heat diffusion equations with appropriate initial and boundary conditions. The rise of nanoparticle size determined the temperature increase of the gold nanoparticle and implicitly of the entire system but also the increase of the necessary time for reaching the thermal equilibrium of the system related to the surrounding polymer volume. The temperature evolution and the dynamics of the system towards reaching the thermal equilibrium are influenced by the gold nanoparticles distribution in the polymer matrix.

U2 - 10.1016/j.tca.2017.08.008

DO - 10.1016/j.tca.2017.08.008

M3 - Article

SN - 0040-6031

VL - 656

SP - 25

EP - 31

JO - Thermochimica Acta

JF - Thermochimica Acta

ER -

Temperature dynamics of laser irradiated gold nanoparticles embedded in a polymer matrix

Abstract

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