Nano Archive

A novel femtosecond-laser formation of CdS nanocrystallites in zirconia matrices

Raulin Katarzynaand Cristini-Robbe, Odile and Baldeck, Patrice and Stephan, Olivier and Kinowski, Christophe and Turrell, Sylvia and Capoen, Bruno and Bouazaoui, Mohamed (2010) A novel femtosecond-laser formation of CdS nanocrystallites in zirconia matrices. Journal of Nanoparticle Research, 12 (4). pp. 1459-1467.

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Official URL: http://dx.doi.org/10.1007/s11051-009-9715-x

Abstract

A novel method for direct laser writing of two-dimensional cadmium sulfide (CdS) semiconductor nanoparticle microstructures is reported. A two photon or a higher-order multiphoton absorption process, originating from femtosecond laser pulses, was used to decompose CdS precursors dispersed in a zirconia thin film previously dip-coated on a glass substrate. The kinetics of nanoparticle formation as a function of laser power were monitored in situ by photoluminescence spectroscopy. Raman spectroscopy was also performed to characterize the structural changes of the zirconia matrix under irradiation and to verify the formation of CdS nanoparticles. Results show that CdS nanoparticles were formed by two-photon absorption (TPA) with or without the help of an additional carbazole photoinitiator.

Item Type:Article
ID Code:9138
Deposited By:Prof. Alexey Ivanov
Deposited On:13 May 2010 12:54
Last Modified:13 May 2010 13:19

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