Nitrogen is frequently included in chemical vapour deposition feed gases to accelerate diamond growth. While there no consensus for an atomistic mechanism of this effect, existing studies have largely focused on the role sub-surface nitrogen and nitrogen-based adsorbates. In work, we demonstrate catalytic effect surface-embedded nucleating new layers (100) diamond. To do so develop a model over...

A 2 mm width by breadth 0.5 thick electronic grade single crystal diamond grown via chemical vapour deposition was configured as a metal–semiconductor–metal X-ray detector. The detector electrically characterised before it connected to bespoke charge-sensitive preamplifier of low-noise. An 55 Fe radioisotope source used illuminate the with soft (5.9 keV and 6.49 keV) X-rays. were temperature co...

GaN layers with wurtzite structure were found to exhibit intense photoluminescence (PL) at 3.47eV (T = 10K) corresponding to recombination of excitons bound to neutral donors. The dependence of this luminescence on the growth conditions, layer thickness and density of excitation power was studied. New PL bands were evidenced in the UV region under high levels of excitation (Iexc 3 0.56mJ/cm ).

Chemical vapour deposition (CVD) of the superconducting 2:2:1:2 phase in the Bi-Sr-Ca-Cu-0 system from different metalorganic precursors is thermodynamically investigated. Both precursors without fluorine and fluorine-containing precursors were employed. The oxygen source was O, H,O, O,+H,O or N,O. The effect of different deposition parameters on the extension of the region where the 2:2:1:2 ph...

A perovskite solar cell is produced using the scalable technique aerosol-assisted chemical vapour deposition for first time. This achieved by a 2-step process with lead acetate as source and methanol solvent.