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Browsing Department of Instrumentation & Automation Technology by Author "Jayanetti, J. K. D. S."

Now showing items 1-20 of 26

Ammonium Sulfide Surface Treatment of Electrodeposited p-Type Cuprous Oxide Thin Films

Jayathilaka, K.M.D.C.; Kapaklis, V.; Siripala, W.; Jayanetti, J. K. D. S. (2014)

The effects of ammonium sulfide surface treatment on electrodeposited p-type polycrystalline cuprous oxide (Cu2O) thin films deposited on Ti substrates were studied. The structural and morphological properties of the films ...
Ammonium Sulfide Surface Treatment of Electrodeposited p-Type Cuprous Oxide Thin Films.

Jayathilaka, K.M.D.C.; Siripala, W.; Kapaklis, V; Jayanetti, J. K. D. S. (2014)
Annealing effects of the untreated and sulfur-treated electrodeposited n-type and p-type cuprous oxide thin films

Jayathilaka, K.M.D.C.; Kumara, L. S. R.; Song, C. H.; Kohara, S.; Sakata, O.; Kapaklis, V.; Siripala, W.; Jayanetti, J. K. D. S. (2015)

The n-type and p-type cuprous oxide thin films were electrodeposited potentiostatically in acetate and lactate baths, respectively. Sulfur treatment of n-type and p-type cuprous oxide surfaces were achieved using gaseous ...
Effect of Bath pH on Electronic and Morphological Properties of Electrodeposited Cu2O Thin Films

Kalubowila, K. D. R. N.; Jayathilaka, K.M.D.C.; Kumara, L. S. R.; Ohara, K.; Kohara, S.; Sakata, O.; Gunewardene, M. S.; Jayasundara, J. M. D. R; Dissanayake, D.P.; Jayanetti, J. K. D. S. (2019)

The ability to systematically vary the flatband potential and the band edge positions of Cu2O by varying the deposition bath pH is considered important in the context of using Cu2O for photocatalytic water splitting. ...
Effect of chlorine doping on electrodeposited cuprous oxide thin films on Ti substrates

Jayathilaka, K.M.D.C.; Jayasinghe, A.M.R.; Sumanasekara, G.U; Kapaklis, V.; Siripala, W.; Jayanetti, J. K. D. S. (2015)

Highly photoactive Cl-doped Cu2O films were electrodepos ited potentiostatically on Ti substrates. Optimum deposition potential was determined by Linear-Sweep Voltammetry measurements. The influence of chlorine doping ...
Effects of Surface Modification of n-Cu2O/p-CuxS Thin Film Heterostructures for Enhanced Liquefied Petroleum Gas Sensing Properties

Bandara, K.N.D.; Jayathilaka, K.M.D.C.; Gunewardene, M. S.; Dissanayake, D.P.; Jayanetti, J. K. D. S. (2016)

We report a novel mechanism to effectively detect LP gas based on surface modification through sulphidation followed by passivation of electrodeposited n-type cuprous oxide (Cu2O), forming a thin film n Cu2O/p-CuxS ...
Electrodeposited n-type cuprous oxide cubic nanostructures for liquefied petroleum gas sensing

Jayasingha, J. L. K.; Jayathilaka, K.M.D.C.; Gunewardene, M. S.; Dissanayake, D.P.; Jayanetti, J. K. D. S. (2016)

A surfactant free template assisted electrodeposition method was used to fabricate thick n-type Cu2O films having cubic nanostructures for the detection of liquefied petroleum (LP) gas at low concentrations. Templates ...
Enhancement of Solar Cell Performance of Electrodeposited Ti/n-Cu2O/p-Cu2O/Au Homojunction Solar Cells by Interface and Surface Modification

Jayathilaka, Charith; Kumara, Loku Singgappulige Rosantha; Ohara, Koji; Song, Chulho; Kohara, Shinji; Sakata, Osami; Siripala, Withana; Jayanetti, J. K. D. S. (2020)

Cuprous oxide (Cu2O) homojunction thin films on Ti substrates were fabricated by an electrochemical deposition in which a p-Cu2O layer was deposited on an n-Cu2O layer by carefully controlled bath conditions. It was found ...
Enhancement of Solar Cell Performance of Electrodeposited Ti/n-Cu2O/p-Cu2O/Au Homojunction Solar Cells by Interface and Surface Modification

Jayathilaka, Charith; Kumara, Loku Singgappulige Rosantha; Ohara, Koji; Song, Chulho; Kohara, Shinji; Sakata, Osami; Siripala, Withana; Jayanetti, J. K. D. S. (2020)

Cuprous oxide (Cu2O) homojunction thin films on Ti substrates were fabricated by an electrochemical deposition in which a p-Cu2O layer was deposited on an n-Cu2O layer by carefully controlled bath conditions. It was found ...
Glass Surface Functionalized with Polyaniline as a Fast Responding Humidity Sensor

Herath, H. M. P. C. K.; Pradeep, E. K. C; Jayananda, M. K; Jayanetti, J. K. D. S.; Kapaklis, V.; Dissanayake, D.P. (International Frequency Sensor Association (IFSA) Publishing, 2012)

Polyaniline functionalized glass surfaces display excellent sensitivity and fast response to humidity. Functionalized glass surfaces were generated by first exposing hot glass surfaces to SOCl2 and aniline monomers and ...
Improved efficiency of electrodeposited p-CuO/n-Cu2O heterojunction solar cell

Jayathilaka, Charith; Kapaklis, Vassilios; Siripala, Withana; Jayanetti, J. K. D. S. (2015)

We report electrodeposition of n-type cuprous oxide (Cu2O) films on p-type CuO films electrodeposited on Ti substrates for forming p-CuO/n-Cu2O heterostructures. X-ray diffraction (XRD) and scanning electron microscopy ...
Improved efficiency of electrodeposited p-CuO/n-Cu2O heterojunction solar cell

Jayathilaka, Charith; Kapaklis, Vassilios; Siripala, Withana; Jayanetti, J. K. D. S. (2015)

We report electrodeposition of n-type cuprous oxide (Cu2O) films on p-type CuO films electrodeposited on Ti substrates for forming p-CuO/n-Cu2O heterostructures. X-ray diffraction (XRD) and scanning electron microscopy ...
Low Cost Ambient Light Sensing Device based on Sulphided Cu2 O Thin Film Photo-Sensor

Kalubowila, K. D. R. N.; Jayanetti, J. K. D. S.; Gunewardene, M. S.; Jayathilaka, K.M.D.C.; Siripala, W. (2014)

A standalone ambient light sensing device was constructed by interfacing a sulphided Cuprous Oxide (Cu2 O) thin film semiconductor based photo-sensor. The photo-sensor was custom fabricated by depositing n-type Cu2 O ...
Mechanistic Insights into Interactions at Urea−Hydroxyapatite Nanoparticle Interface

Fernando, Nimshi L.; Rathnayake, Dhanusha T.N.; Kottegoda, Nilwala; Jayanetti, J. K. D. S.; Karunaratne, Veranja; Jayasundara, Dilushan R. (ACS Publications, 2021)

Development of controlled release biomolecules by surface modification of hydroxyapatite nanoparticles has recently gained popularity in the areas of bionanotechnology and nanomedicine. However, optimization of these ...
Nanoporous Cu2O nanotube/nanorod array electrodes for non-enzymatic glucose sensing with high sensitivity and very low detection limit

Jayasingha, Lakmini; Jayathilaka, Charith; Kumara, Roshantha; Ohara, Koji; Kaumal, Migelhewa; Gunewardene, Siyath; Dissanayake, Dhammike; Jayanetti, J. K. D. S. (2020)

This study compares the non-enzymatic glucose sensing performance by Cu2O nanorods/nanotubes grown using electrochemically anodized Cu foam and Cu plates to form binder free one-dimensional Cu(OH)2 nanostructures which ...
Nanoporous Cu2O nanotube/nanorod array electrodes for non-enzymatic glucose sensing with high sensitivity and very low detection limit

Jayasingha, Lakmini; Jayathilaka, Charith; Kumara, Roshantha; Ohara, Koji; Kaumal, Migelhewa; Gunewardene, Siyath; Dissanayake, Dhammike; Jayanetti, J. K. D. S. (2020)

This study compares the non-enzymatic glucose sensing performance by Cu2O nanorods/nanotubes grown using electrochemically anodized Cu foam and Cu plates to form binder free one-dimensional Cu(OH)2 nanostructures which ...
Reduction-Induced Synthesis of Reduced Graphene Oxide-Wrapped Cu2O/Cu Nanoparticles for Photodegradation of Methylene Blue

Kalubowila, K. D. R. N.; Gunewardene, M. Siyath; Jayasingha, J. Lakmini Kaushalya; Dissanayake, Dhammike; Jayathilaka, Charith; Jayasundara, J. M. Dilushan; Gao, Yun; Jayanetti, J. K. D. S. (ACS Publications, 2021)

A photocatalytic composite in powder form having nanosized Cu2O/Cu granules wrapped in multilayered reduced graphene oxide (rGO) sheets was synthesized. The fabrication process was initiated by potentiostatic electrodeposition ...
Stability of nano-hydroxyapatite thin coatings at liquid/solid interface

Fernando, Nimshi L; Kottegoda, Nilwala; Jayanetti, J. K. D. S.; Karunaratne, Veranja; Jayasundara, Dilushan R. (2018)

The stability of nano-hydroxyapatite thin coatings immediately after deposition, sonication and prolong water exposure was monitored using the quartz crystal microbalance. Different morphological forms of nano-hydro ...
Stability of nano-hydroxyapatite thin coatings at liquid/solid interface

Fernando, Nimshi L.; Kottegoda, Nilwala; Jayanetti, J. K. D. S.; Karunaratne, Veranja; Jayasundara, Dilushan R. (Elsevier B.V, 2018)

The stability of nano-hydroxyapatite thin coatings immediately after deposition, sonication and prolong water exposure was monitored using the quartz crystal microbalance. Different morphological forms of nano-hydro ...
Sulfidation of electrodeposited microcrystalline/nanocrystalline cuprous oxide thin films for solar energy applications

Jayathilaka, K.M.D.C.; Siripala, W.; Kapaklis, V.; Jayanetti, J. K. D. S. (2012)

Grain size of polycrystalline semiconductor thin films in solar cells is optimized to enhance the efficiency of solar cells. This paper reports results on an investigation carried out on electrodeposited n-type cuprous ...

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