Please use this identifier to cite or link to this item:
|Title:||An investigation into the effects of high laser fluence on hydroxyapatite/calcium phosphate films deposited by pulsed laser deposition||Authors:||Tri, L.Q.
Pulsed laser deposition (PLD)
|Issue Date:||15-Oct-2009||Citation:||Tri, L.Q., Chua, D.H.C. (2009-10-15). An investigation into the effects of high laser fluence on hydroxyapatite/calcium phosphate films deposited by pulsed laser deposition. Applied Surface Science 256 (1) : 76-80. ScholarBank@NUS Repository. https://doi.org/10.1016/j.apsusc.2009.07.062||Abstract:||Pulsed laser deposited mixed hydroxyapatite (HA)/calcium phosphate thin films were prepared at room temperature using KrF laser source with different laser fluence varying between 2.4 J/cm2 and 29.2 J/cm2. Samples deposited at 2.4 J/cm2 were partially amorphous and had rough surfaces with a lot of droplets while higher laser fluences showed higher level of crytallinity and lower roughness of surfaces of obtained samples. Higher laser fluences also decreased ratio Ca/P of as-deposited samples. X-ray photoelectron spectroscopy (XPS) revealed traces of carbonate groups in obtained samples, which were removed after thermal annealing. The decomposition of HA into TCP was observed to start at about 400 °C. The formation of new crystalline phase of HA was found after annealing as well. The cracks observed on surface of sample deposited at 29.2 J/cm2 after annealing indicated that the HA/ calcium phosphate films deposited at higher laser energy densities were probably more densed. © 2009 Elsevier B.V. All rights reserved.||Source Title:||Applied Surface Science||URI:||http://scholarbank.nus.edu.sg/handle/10635/86187||ISSN:||01694332||DOI:||10.1016/j.apsusc.2009.07.062|
|Appears in Collections:||Staff Publications|
Show full item record
Files in This Item:
There are no files associated with this item.
checked on Jun 14, 2019
WEB OF SCIENCETM
checked on Jun 7, 2019
checked on May 25, 2019
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.