Research Repository

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Revealing the nature of low temperature photoluminescence peaks by laser treatment in van der Waals epitaxially grown WS2 monolayers (2018)
Journal Article
Henini, M. (in press). Revealing the nature of low temperature photoluminescence peaks by laser treatment in van der Waals epitaxially grown WS2 monolayers. Nanoscale, doi:10.1039/C8NR00719E. ISSN 2040-3364

Monolayers of transition metal dichalcogenides (TMD) are promising materials for optoelectronics devices. However, one of the challenges is to fabricate large-scale growth of high quality TMD monolayers with the desired properties in order to expand... Read More

γ-rays irradiation effects on dielectric properties of Ti/Au/GaAsN Schottky diodes with 1.2%N (2018)
Journal Article
Henini, M. (2018). γ-rays irradiation effects on dielectric properties of Ti/Au/GaAsN Schottky diodes with 1.2%N. Radiation Physics and Chemistry, 147, doi:10.1016/j.radphyschem.2018.01.029. ISSN 0969-806X

Dielectric properties of As grown and irradiated Ti /Au/GaAsN Schottky diodes with 1.2%N are investigated using capacitance/conductance-voltage measurements in 90–290 K temperature range and 50–2000 kHz frequency range. Extracted parameters are inter... Read More

Voltage- and light-controlled spin properties of a two-dimensional hole gas in p-type GaAs/AlAs resonant tunneling diodes (2018)
Journal Article
Galeti, H., Galvao Gobato, Y., Brasil, M., Taylor, D., & Henini, M. (in press). Voltage- and light-controlled spin properties of a two-dimensional hole gas in p-type GaAs/AlAs resonant tunneling diodes. Journal of Electronic Materials, 47(3), doi:10.1007/s11664-018-6065-4. ISSN 0361-5235

We have investigated the spin properties of a two-dimensional hole gas (2DHG) formed at the contact layer of a p-type GaAs/AlAs resonant tunneling diode (RTD). We have measured the polarized-resolved photoluminescence of the RTD as a function of bias... Read More

Detailed investigation of defect states in Erbium doped In2O3 thin films (2017)
Journal Article
Henini, M. (2018). Detailed investigation of defect states in Erbium doped In2O3 thin films. Materials Research Bulletin, 99, doi:10.1016/j.materresbull.2017.11.020. ISSN 0025-5408

Erbium doped Indium Oxide (In2O3:Er) thin films (TFs) were synthesised by spin-on technique. Secondary Ion Mass Spectrometry confirmed that Er is incorporated into the In2O3 lattice and formed an In-O-Er layer. The current–voltage loop produced a low... Read More

Structural and Optical Properties of Diluted Magnetic Ga1−xMnxAs–AlAs Quantum Wells Grown on High-Index GaAs Planes (2017)
Journal Article
Gunes, M., Gumus, C., Galvao Gobato, Y., & Henini, M. (in press). Structural and Optical Properties of Diluted Magnetic Ga1−xMnxAs–AlAs Quantum Wells Grown on High-Index GaAs Planes. Bulletin of Materials Science, doi:10.1007/s12034-017-1487-9. ISSN 0250-4707

We report on the structural and optical properties of Ga₁₋ᵪ Mn ᵪ As-AlAs quantum wells (QWs) with χ=0.1% grown by molecular beam epitaxy (MBE) on semi-insulating GaAs substrates with orientations (100), (110), (311)B and (411)B. Atomic force microsco... Read More

Novel multifunctional of magnesium ions (Mg++) incorporated calcium phosphate nanostructures (2017)
Journal Article
Thanigai Arul, K., Ramesh, M., Chennakesavan, C., Karthikeyan, V., Manikandan, E., Umar, A., …Henini, M. (2018). Novel multifunctional of magnesium ions (Mg++) incorporated calcium phosphate nanostructures. Journal of Alloys and Compounds, 730, doi:10.1016/j.jallcom.2017.09.254. ISSN 0925-8388

Magnesium ions incorporated calcium phosphate was synthesized by wet chemical route and followed by microwave assisted method. XRD analysis was confirmed that the presence of calcium phosphate (hydroxyapatite). TEM analysis was exhibited rod-like mor... Read More

Impact of doping on the performance of p-type Be-doped Al0.29 Ga0.71As Schottky diodes (2017)
Journal Article
Henini, M. (in press). Impact of doping on the performance of p-type Be-doped Al0.29 Ga0.71As Schottky diodes. Modern Electronic Materials, 3(2), doi:10.1016/j.moem.2017.06.001. ISSN 2452-1779

The effects of changing the acceptors concentration on the electrical characteristics of Au/Ti on Be-doped Al0.29Ga0.71As Schottky contact have been investigated in the temperature range of 100–400 K. Using three devices with three different doping l... Read More

Enhanced magnetic properties of polymer-magnetic nanostructures synthesized by ultrasonication (2017)
Journal Article
Thanigai Arul, K., Manikandan, E., Marmu, P., Kennedy, J., & Henini, M. (in press). Enhanced magnetic properties of polymer-magnetic nanostructures synthesized by ultrasonication. Journal of Alloys and Compounds, 720, doi:10.1016/j.jallcom.2017.05.146. ISSN 0925-8388

Polymer based nickel (Ni) and cobalt (Co) co-doped ferrites were prepared by adept ultrasonication route. Different concentrations of polymer [polyvinyl alcohol (PVA)] (0.2 g and 0.5 g) was added as a surfactant to the magnetic particles. The phase p... Read More