Mwakikunga, Bonex WForbes, ASideras-Haddad, EErasmus, RMKatumba, GMasina, Bathusile N2009-04-142009-04-142008Mwakikunga, BW, Forbes, A, Sideras-Haddad, E. 2008. Synthesis of tungsten oxide nano structures by laser pyrolysis. International Journal of Nanoparticles, Vol. 1(3), pp 1-181753-2507http://hdl.handle.net/10204/3313https://www.inderscienceonline.com/doi/abs/10.1504/IJNP.2008.020895https://doi.org/10.1504/IJNP.2008.020895Copyright: 2008 Inderscience PublishersSince the proposal to synthesise materials by laser assisted pyrolysis in the 1970s, and its practical realisation in 1982, a number of researchers have used this method in obtaining nano-powders from liquid droplets. This study revisits this technique by introducing a new aspect in that it considers obtaining thin films rather than powders. A full experimental arrangement, including laser optimisation, optical layout and materials processing procedures is described. Synthesis of WO3 nanostructures by this method is reported for the first time, with the mean diameter and length determined to be 51 nm and 6.8 µm, respectively. A possible mechanism for production of such nanostructures is proposed owing to the selective dissociation of the O–C bonds in the tungsten ethoxide precursor liquid which resonate with the 10.6 µm emission wavelength of the CO2 laser employedenLaser pyrolysisThin filmsLaser beam propagationMultiphoton dissociationTungsten oxideNano-rodsNanostructuresNanoparticlesArticleMwakikunga, B. W., Forbes, A., Sideras-Haddad, E., Erasmus, R., Katumba, G., & Masina, B. N. (2008). Synthesis of tungsten oxide nano structures by laser pyrolysis. http://hdl.handle.net/10204/3313Mwakikunga, Bonex W, A Forbes, E Sideras-Haddad, RM Erasmus, G Katumba, and Bathusile N Masina "Synthesis of tungsten oxide nano structures by laser pyrolysis." (2008) http://hdl.handle.net/10204/3313Mwakikunga BW, Forbes A, Sideras-Haddad E, Erasmus R, Katumba G, Masina BN. Synthesis of tungsten oxide nano structures by laser pyrolysis. 2008; http://hdl.handle.net/10204/3313.TY - Article AU - Mwakikunga, Bonex W AU - Forbes, A AU - Sideras-Haddad, E AU - Erasmus, RM AU - Katumba, G AU - Masina, Bathusile N AB - Since the proposal to synthesise materials by laser assisted pyrolysis in the 1970s, and its practical realisation in 1982, a number of researchers have used this method in obtaining nano-powders from liquid droplets. This study revisits this technique by introducing a new aspect in that it considers obtaining thin films rather than powders. A full experimental arrangement, including laser optimisation, optical layout and materials processing procedures is described. Synthesis of WO3 nanostructures by this method is reported for the first time, with the mean diameter and length determined to be 51 nm and 6.8 µm, respectively. A possible mechanism for production of such nanostructures is proposed owing to the selective dissociation of the O–C bonds in the tungsten ethoxide precursor liquid which resonate with the 10.6 µm emission wavelength of the CO2 laser employed DA - 2008 DB - ResearchSpace DP - CSIR KW - Laser pyrolysis KW - Thin films KW - Laser beam propagation KW - Multiphoton dissociation KW - Tungsten oxide KW - Nano-rods KW - Nanostructures KW - Nanoparticles LK - https://researchspace.csir.co.za PY - 2008 SM - 1753-2507 T1 - Synthesis of tungsten oxide nano structures by laser pyrolysis TI - Synthesis of tungsten oxide nano structures by laser pyrolysis UR - http://hdl.handle.net/10204/3313 ER -