TY - GEN
T1 - Temperature dependent optical properties of nanoparticle suspensions
AU - Otanicar, Todd P.
AU - Higgins, Brian T.
AU - Brunter, Steven
AU - Phelan, Patrick
AU - Dai, Lenore
AU - Swaminathan, Rajasekaran
PY - 2012
Y1 - 2012
N2 - The optical properties of nanoparticle suspensions in liquids have garnered significant interest recently for their potential use in applications ranging from biomedical imaging to solar energy harvesting. Although previous investigations have provided useful insight into the spectral properties of such suspensions they have been primarily limited to experimental investigation at room temperature. As these suspensions will be used in systems with significant variations in temperature it is important to understand the effects of temperature on the optical properties. Furthermore, the primary spectrometric technique used has considered only transmittance and not the effects of scattering. Here we investigate the effects of temperature on the response of TiO2, Ag, and Au nanoparticle suspensions in water utilizing an integrating sphere and heated cuvette. Additionally the responses are analytically modeled to understand the individual contributions from variations in particle size, volume fraction, and surrounding medium temperature-dependent refractive index changes.
AB - The optical properties of nanoparticle suspensions in liquids have garnered significant interest recently for their potential use in applications ranging from biomedical imaging to solar energy harvesting. Although previous investigations have provided useful insight into the spectral properties of such suspensions they have been primarily limited to experimental investigation at room temperature. As these suspensions will be used in systems with significant variations in temperature it is important to understand the effects of temperature on the optical properties. Furthermore, the primary spectrometric technique used has considered only transmittance and not the effects of scattering. Here we investigate the effects of temperature on the response of TiO2, Ag, and Au nanoparticle suspensions in water utilizing an integrating sphere and heated cuvette. Additionally the responses are analytically modeled to understand the individual contributions from variations in particle size, volume fraction, and surrounding medium temperature-dependent refractive index changes.
UR - http://www.scopus.com/inward/record.url?scp=84892666313&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84892666313&partnerID=8YFLogxK
U2 - 10.1115/HT2012-58188
DO - 10.1115/HT2012-58188
M3 - Conference contribution
AN - SCOPUS:84892666313
SN - 9780791844779
T3 - ASME 2012 Heat Transfer Summer Conf. Collocated with the ASME 2012 Fluids Engineering Div. Summer Meeting and the ASME 2012 10th Int. Conf. on Nanochannels, Microchannels and Minichannels, HT 2012
SP - 145
EP - 150
BT - ASME 2012 Heat Transfer Summer Conf. Collocated with the ASME 2012 Fluids Engineering Div. Summer Meeting and the ASME 2012 10th Int. Conf. on Nanochannels, Microchannels and Minichannels, HT 2012
T2 - ASME 2012 Heat Transfer Summer Conference Collocated with the ASME 2012 Fluids Engineering Div. Summer Meeting and the ASME 2012 10th Int. Conf. on Nanochannels, Microchannels and Minichannels, HT 2012
Y2 - 8 July 2012 through 12 July 2012
ER -