Imalka Jayawardena

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The deposition of amorphous carbon electrical contacts on a diamond radiation detector by Pulsed Laser Deposition (PLD) is introduced as a novel technique for producing tissue equivalent x-ray dosimeters. Three devices were fabricated with the following electrical contacts: pure amorphous carbon (labelled Poly-C), amorphous carbon mixed with Nickel (PLD)(More)
A Critical look at Organic Photovoltaic Fabrication Methodology: Defining performance enhancement parameters relative to active area L.J. Rozanski, Chris T.G. Smith, Keyur K. Gandhi, Michail J. Beliatis, G. Dinesha M.R. Dabera, K.D.G. Imalka Jayawardena, A.A. Damitha T. Adikaari 1 , Michael J. Kearney and S. Ravi P. Silva* Advanced Technology Institute,(More)
The deposition of amorphous Carbon mixed with Nickel (C/Ni) as electrodes for a diamond radiation detector using Pulsed Laser Deposition (PLD) was demonstrated previously as a novel technique for producing near-tissue equivalent X-ray dosimeters based on polycrystalline diamond. In this study, we present the first characterisation of a single crystal CVD(More)
Quarter wave matching of ultrasonic transducers with two layers (glass and parylene) were studied with computer simulation. These layers are located between the piezoelectric transducer and the acoustic load. The purpose is to achieve a short impulse response and high efficiency broadband transfer in a practical manner for high frequency transducers. The(More)
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