Synthesis of TiO2 nanoscale rods with MHz femtosecond laser irradiation of single crystal surface and characterisation | Zendy

M. Sivakumar | Zendy; Bo Tan | Zendy; Krishnan Venkatakrishnan | Zendy

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Synthesis of TiO2 nanoscale rods with MHz femtosecond laser irradiation of single crystal surface and characterisation

Author(s) -

M. Sivakumar,

Bo Tan,

Krishnan Venkatakrishnan

Publication year - 2011

Publication title -

aip advances

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.421

H-Index - 58

ISSN - 2158-3226

DOI - 10.1063/1.3600705

Subject(s) - materials science , femtosecond , nanorod , irradiation , rod , laser , single crystal , nanoscopic scale , rutile , optics , crystal (programming language) , optoelectronics , nanotechnology , analytical chemistry (journal) , chemical engineering , crystallography , chemistry , programming language , pathology , computer science , nuclear physics , medicine , physics , alternative medicine , engineering , chromatography

Growth of nanoscale rods on single crystal rutile TiO2 surface irradiated by MHz pulse repetition rate femtosecond laser in nitrogen environment without a catalyst or template is reported. The rods are of 100 nm in width to 1 micron length. Microraman analysis of the laser irradiated surface shows only a decrease in the intensity of active modes as compared to untreated surface. The growth of TiO2 nanorods can be explained by a method combining nanoparticles formation due to expulsion of molten material from laser irradiated spot and their subsequent growth by vapor-liquid-solid process

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