On Tuesday July 18th, 2017; A Workshop was held at El-Araby Library, E-JUST. The seminar is titled: “Innovation Technology for Educational Equipment for Research-Oriented Faculties of Engineering”. It was presented by Dr. Paolo Bello, President of EV, Italy and Mr. LorisCeolin, Regional Sales Manager EV, Italy.
The Presentation Aims to Present ELETTRONICA VENETA top level equipment lines for undergraduate and postgraduate research-oriented faculties of engineering
On Tuesday July 18th, 2017; Inter-cultural Salon was held at El-Araby Library, E-JUST. The seminar is titled: “Semiconductor Single Quantum Dots (SQD) Physics and Applications”. It was presented by Prof. Mohsen Ghali, Basic and Applied Science (BAS) Institute.
Semiconductor quantum dots (QDS) are tiny Nano-material where electrons and holes can be confined in dimensions of their corrresponding De Broglie wavelength with Zero degree of freedom (OD). As a result, the energy level in the QDs are quantized and thus QDs are often referred as “artificial atoms”. these QDs can be embedded in solid state semiconductor devices where their shape, compostion and location can be tailored by modern growth techniques, essentially, optical excitations in QDs can involve more than a single carrier and interaction among the carriers can modify their emission spectra. As the growth method of QDs is usually based on self-induced rearrangement of the semiconducting epitaxial layers, a large number of QDs are usually formed with density between 107cm-2 to 1010 cm-2, As a result, it is not easy to be in full control over such hundreds of millions of dots with various QDs geometries, size and ordering. Fortunately, the field of quantum information science has triggered a large interest in device concepts based on single quantum dots. This includes single photon source where the short emission wavelength in the visible spectral range might be of interest for optical communication or even for quantum computation schemes where the spin degree of freedom of individual electron in the SQD can be used representing a Qubit. Thus, understanding Physics of the devices with controlled properties.
In this talk, he has been given an introduction to Physics of Semiconductor QDs including information of singe dot spectroscopy, electronic features of QDs and their applications in industry for Phtotovoltics, Optical communications and Solid-State Spin memory devices.