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dc.contributor.authorHaider, A F M Yusuf
dc.contributor.authorSengupta, S.
dc.contributor.authorAbedin, Kazi Monowar
dc.contributor.authorTalukder, Aminul
dc.identifier.citationHaider, A. F. M. Y., Sengupta, S., Abedin, K. M., & Talukder, A. I. (2011). Fabrication of gold nanoparticles in water by laser ablation technique and their characterization. Applied Physics A: Materials Science and Processing, 105(2), 487-495. doi:10.1007/s00339-011-6542-6en_US
dc.descriptionThis article was published in the Journal Applied Physics A: Materials Science and Processing [© 2011 Springer-Verlag] and the definite version is available at : 10.1007/s00339-011-6542-6en_US
dc.description.abstractA colloidal solution of gold nanoparticles in deionized nanopure water was produced by laser ablation technique without the use of any chemical/surfactant. Spectral characterization and morphological studies of these nanoparticles were carried out by UV-Vis Spectroscopy and Scanning Electron Microscopy, respectively. A number of variables of the ablating laser pulse have been used to control the size of the fabricated nanoparticles. Excellent correlation between ablating laser pulse parameter and optical and morphological parameters of the gold colloids were obtained. The peak of the extinction spectra shows a monotonic blue shift for laser fluence of 410 J/cm 2 and above. Below this the extinction peak remains fairly constant in wavelength. Blue shifts of the extinction spectra were also observed with increasing re-ablation time of previously ablated gold colloids. Possible explanations of all these observations are discussed.en_US
dc.publisher© 2011 Springer-Verlag.en_US
dc.subjectColloidal solutionsen_US
dc.subjectExtinction spectraen_US
dc.subjectGold colloiden_US
dc.subjectGold nanoparticlesen_US
dc.titleFabrication of gold nanoparticles in water by laser ablation technique and their characterizationen_US
dc.contributor.departmentDepartment of Mathematics and Natural Sciences, BRAC University

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