Browsing by Author "Amaratunga, GAJ"

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  • Optical characterstics of carbon based semiconductors 
    Munindradasa, DAI; Amaratunga, GAJ [Conference-Full-text]
    The photoluminescence (PL) in a-C:H:N was measured using a 2.4leV Ar ion laser line for varying N content. The PL results show a lowering of the PL peak energy and a spectral line width broadening as the N content in the ...
  • Urea–hydroxyapatite-montmorillonite nanohybrid composites as slow release nitrogen compositions 
    Madusanka, N; Sandaruwan, C; Kottegoda, N; Sirisena, D; Munaweera, I; De Alwis, A; Karunaratne, V; Amaratunga, GAJ [Article-Full-text]
    Nanohybrid composite was developed by the encapsulation of urea modified hydroxyapatite nanoparticles into the nanolayers of montmorillonite. The nanohybrid composites were synthesized by two approaches; solution phase ...