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Abu Syed Mahajumi, PhD

Assistant Professor

Faculty

كلية الهندسة
Biulding 3, Room C 2/20, Department of Electrical Engineering College of Engineering, King Saud University P.O. Box 800, Riyadh 11421, Saudi Arabia. E-mail: amahajumi@ksu.edu.sa

نبذة تعريفية / مختصر السيرة الذاتية

I am working with the physical characteristics of semi-conductors with dimensions at the nanometer scale at King Saud University, Riyadh, Saudi Arabia. Semi-conductors are materials which all electronic components such as transistors and integrated circuits are made up of. Semiconductors are consequently at the heart of all modern information technology. By drastically reducing the size of semi-conductor components to the nanometer scale, completely new properties can be realised. Besides being small and allowing more transistors to be packed into a single chip, the uniform and symmetrical structure of nanotubes (or QDs, QWs, QWRs) allows a higher electron mobility (faster electron movement in the material), a higher dielectric constant (faster frequency), and a symmetrical electron/hole characteristic. So my main research works are the electrical and optical properties of various types of nanostructures.

المنشورات
المزيد ...

publications

We report on the fabrication of GaAs based p–i–n solar cells containing 5 and 10 layers of type II GaSb quantum rings grown by molecular beam epitaxy.

بواسطة Carrington, Peter ; Mahajumi, Abu Syed ; Wagener, Magnus C. ; Botha, Johannes Reinhardt ; Zhuang, Qiandong ; Krier, Anthony
2011
publications

The effects of rapid thermal annealing on the photoluminescence emission obtained from ten-layer stacks of GaSb/GaAs type-II single monolayer quantum dots and Stranski–Krastanow grown quantum…

بواسطة A. Mahajumi, P.J. Carrington, I. Kostakis, Q. Zhuang, and A. Krier
2013

المواد الدراسية
المزيد ...

course

Fundamentals of quantum mechanics; Energy bands and carrier concentration; Carrier transport and recombination; P-N junctions; Schottky barrier junctions; Heterojunctions and ohmic contacts;…

course

Electrical quantities and Units; DC and AC circuits; Pharos representation of AC quantities; Three Phase Systems; Generation of AC voltage.

course

Bulk, surface and interface parameters  electrical methods (resistivity, lifetime, mobility dopant, profile, physical methods (optical microscopy, TEM, SEM, Xray topography, ellipsometry. Chemical…