A highly sensitive (metal/nanostructure silicon /metal) photodiode has been fabricated from rapid thermal oxidation (RTO) and rapid thermal annealing (RTA) processes, of nanostructure porous silicon prepared by laser assisted etching.Photoresponse was investigated in the wavelength range (400-850nm). A responsivity of (3A/W) was measured at (450 nm) with low value of dark current of about (1 µA /cm 2 ) at 5 volt reverse bias.
In this review, the theoretical and experimental aspects of ZnO nanostructures production using pulsed laser deposition techniques were presented. It reviewed the work principles of pulse laser deposition technique (PLD) method, physical procedures such as ablation, and plasma plume creation accompanying the deposition of pure and doped ZnO from target to substrate material. Many ways of deposition and elements that affecting on the properties of thin films like the temperature of substrate, laser fluence (laser energy density), pulse repetition rate, pressure of oxygen in chamber, time of deposition process and post growth annealing which modify the deposition active factors like nucleation, and crystallization.
This article focuses on the effects and applications of ethylenediamine dithiocarbamate (EDADTC) on coordination and electro chemistry. EDADTC shows stable palladium (II) metal complex in organosulphur chemistry. Since they have soft sulphur donor atoms can make a strong metal binding property, act as the ligand and stable above pH 12. Due to their water soluble tendency, flow of electron from alkyl group to nitrogen, inductive effect and conjugation effect proved the stabilizing property in electroless plating process. EDADTC has improved the physical property and produce the quality deposits in electroless copper plating process. The palladium (II) metal complex was characterized by Rapid Elemental Analysis. The structure of the stable complex was confirmed with Electronic and I.R Spectral Analysis. The surface morphologies of copper deposits were characterized by AFM studies. The crystallite sizes of the copper deposits were measured by XRD studies and the quality of the copper deposits was investigated by cyclic voltammetry studies.
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