Semiconductor Electronics and Optics (SEO) Research Group

Introduction

The Semiconductor Electronics and Optics (SEO) research group at Department of Electrical Engineering, NUST College of Electrical and Mechanical Engineering is focused on the design, simulation, fabrication and testing of novel semiconductor devices. The group comprises of four PhD qualified researchers, who have expertise in various areas related to semiconductors. The group is actively working on a number of projects and many students have already completed their MS theses work in connection with these projects.

Team

Publications (Journal Papers)

1. Saif Ullah Awan, S. K. Hasanain, Massimo F. Bertino, and G. Hassnain Jaffari “Ferromagnetism in Li doped ZnO nanoparticles: The role of interstitial Li” JOURNAL OF APPLIED PHYSICS 112, 103924 (2012).
2. Saqlain A. Shah, M. H. Asdi, M. U. Hashmi , M. F. Umar , Saif Ullah Awan “Thermo- responsive copolymer coated MnFe2O4 magnetic nanoparticles for hyperthermia therapy and controlled drug delivery” Materials Chemistry and Physics 137 365-371 (2012).
3. Saif Ullah Awan, S. K. Hasanain, Massimo F. Bertino, and G. Hassnain Jaffari “Effects of Substitutional Li on the Ferromagnetic Response of Li co-doped ZnO:Co Nanoparticles” Journal of Physics: Condensed Matter, 25 156005 (2013).
4. Saqlain A. Shah a,M.H. Asdi, M.U. Hashmi , M.F. Umar , Saif Ullah Awan “PEG-coated folic acid-modified superparamagnetic MnFe2O4 nanoparticles for hyperthermia therapy and drug delivery” Materials Chemistry and Physics 138 703-708 (2013).
5. Saif Ullah Awan, S. K. Hasanain, D. H. Anjum, M. S. Awan, and Saqlain A. Shah,“Room temperature p-type conductivity and coexistence of ferroelectric order in ferromagnetic Li doped ZnO nanoparticles” JOURNAL OF APPLIED PHYSICS 116, 164109 (2014).
6. Saqlain A. Shah, A. Majeed , M. A. Shafique , K. Rashid, Saif Ullah Awan, “Cell viability study of thermo-responsive core–shell superparamagnetic nanoparticles for multimodal cancer therapy” Appl Nanoscience 4, 227–232 (2014).
7. Saif Ullah Awan, S. K. Hasanain, G. Hassnain Jaffari, D. H. Anjum and Umar S. Qurashi, “Defects induced luminescence and tuning of bandgap energy narrowing in ZnO nanoparticles doped with Li ions” JOURNAL OF APPLIED PHYSICS 116, 083510 (2014).
8. Saif Ullah Awan, S. K. Hasanain, G. Hassnain Jaffari, Zahid Mahmood “Carrier concentration dependence of ferroelectric transition in multiferroic Li doped and Li-Co co-doped ZnO nanoparticle APPLIED PHYSICS LETTERS 104, 222906 (2014).
9. Saif Ullah Awan, S. K. Hasanain, M. S. Awan and Saqlain A. Shah, “Raman scattering and interstitial Li defects induced polarization in co-doped multiferroic Zn 0.96-y Co 0.04 Li y O (0.00≤y≤0.10) nanoparticles” Royal Society of Chemistry (RSC) Advances 5, 39828 (2015).
10. Saif Ullah Awan, S. K. Hasanain, Z. Mahmood, D. H. Anjum, Saqlain A. Shah , M. Aftab, Turab Ali Abbas “Study of room temperature Raman scattering and XPS, high temperature electrical and low temperature ferromagnetic properties of Zn 1-y Li y O (0.00≤y≤0.10) nanoparticles” Smart Materials and Structure  24 115025  (2015).
11. Saif Ullah Awan, S. K. Hasanain, and A. Aftab, “Influence of Li 1+ co-doping defects on luminescence and bandgap narrowing engineering due to band tailing effects of ZnO: Co 2+ nanoparticles” Journal of Luminescence 172 231–242 (2016).
12. Saqlain A. Shah, M. U. Hashmi, Saif Ullah Awan and M. Naeem, “;Doxorubicin-loaded Photosensitive Magnetic Liposomes for Multi-modal Cancer Therapy”; Colloids and Surfaces B: Biointerfaces 148 157–164 (2016).
13. Naeem Ahmad, Y.U. Tian, Suleman Khan, Abdul Majid, S. A. Shah, Saif Ullah Awan, X.F.Han, Javed Iqbal, “;Ferromagnetic Relaxation and Magnetic properties of Co 40 Fe 40 B 20 nanowires”;

Journal of Superconductivity and Novel Magnetism 30, 469–473 (2017).

14. Abdur Rahim, Saif Ullah Awan, S. K. Hasanain, L. E. G. Armas, “;Cu co-doping effect on electronic structure and room temperature ferromagnetism of TiO2:V nanoparticles”; Journal of Materials Science: Materials in Electronics 29, 3751–3758 (2018).
15. Saif Ullah Awan, S. K. Hasanain , Jamshaid Rashid, Shahzad Hussain, Saqlain A. Shah, Mian Zahid Hussain, Mohsin Rafique4, M. Aftab, Rashid Khan “;Structural, optical, electronic and magnetic properties of multiphase ZnO/Zn(OH)2/ZnO2 nanocomposites and hexagonal prism shaped ZnO nanoparticles synthesized by pulse laser ablation in Heptanes”; Materials Chemistry and Physics (DOI: 10.1016/j.matchemphys.2018.02.051).
16. Shahzad Hussain, Saif Ullah Awan, S. K. Hasanain, “Investigation of Dielectric and Complex impedance spectroscopic studies of Bi 1-x Ba x FeO 3 (0 ≤ x ≤ 0.30) system”; Journal of Materials Science: Materials in Electronics, page 1-11 (DOI: 10.1007/s10854-018- 8842-5).
17. Saif Ullah Awan, Zahid Mehmood, Shahzad Hussain, Saqlain A. Shah, Naeem Ahmad, Mohsin Rafique, M. Aftab, Turab Ali “Correlation between structural, electrical, dielectric and magnetic properties of semiconducting Co doped and (Co, Li) co-doped ZnO nanoparticles”; Accepted in Journal “;Physica E: Low-dimensional Systems and Nanostructures”.

Publications (Conference Papers)

1. Saeed Ahmed But, Yahya Younus Sethi, Hina Tahir, Khawaja Abdul Waheed, Mojeeb Bin Ihsan,   “Design and Simulation of Microwave Front end of a DIFM Receiver using COTS”, IEEE INMIC 2003 International Multitopic Conference Islamabad Pakistan, 8-9 December 2003, pp 224-227.
2. Muhammad Yahya Younus Sethi, Hina Tahir, Khawaja Abdul Waheed, Saeed Ahmed But, Mojeeb Bin Ihsan “Performance Analysis of COTS based Microwave Front End of a DIFM Receiver”, Second International Bhurban Conference on Applied Sciences and Technology, Bhurban, Pakistan, 16-21 June, 2003, PP 299-305.
3. Naveed Ahsan, Jahangir Khan Kayani and Mojeeb Bin Ihsan “Integrated Microstrip Patch Antenna and LNA Assembly for GPS Repeaters”, Second International Bhurban Conference on Applied Sciences and Technology, Bhurban, Pakistan, 16-21 June, 2003, PP 333-343.
4. Ihsan, A. Rothwarf, K. Pourrezaei, and S. Tyagi. “Microwave properties of YBaCuO thin films deposited on LaAlO3 and MgO” IEEE, Second National Multi Topic Conference, Islamabad, Pakistan, April 26-27, 1997, pp 5-8.
5. Ihsan, M. Fardmanesh, K. Scoles, A. Rothwarf, and K. Pourrezaei. Drexel University, Philadelphia, Pennsylvania. 19104. Erik Lenzing  US Army, ETDL Fort Monmouth, New Jersey. 07703.  “Design and performance of microstrip resonators using YBCO thin films made by in-situ off-axis sputtering” AIP conference proceedings 273, Superconductivity and its Applications, Buffalo, NY 1992.  Editors:  H. S. Kwok, D. T. Shaw and M. J. Naughton, pp 122-131.
6. Ihsan, M. Fardmanesh, A. Rothwarf, and K. Pourrezaei. “Effect of process parameters on properties of YBCO thin films deposited by off-axis planar magnetron sputtering”  AIP conference proceedings 273, Superconductivity and its Applications, Buffalo, NY 1992.  Editors:  H. S. Kwok, D. T. Shaw and M. J. Naughton, pp 392-400.
7. Fardmanesh, M. Ihsan, K. Scoles and A. Rothwarf. “Thin film YBCO infrared detector design and characterization.” AIP conference proceedings 273, Superconductivity and its Applications, Buffalo, NY 1992.  Editors:  H. S. Kwok, D. T. Shaw and M. J. Naughton, pp 142-154.
8. M. Fardmanesh, M. Ihsan, A. Rothwarf, K. Scoles, and K. Pourrezaei.  “Thick and thin film Y-Ba-Cu-O infrared detectors.” AIP conference proceedings 251, Superconductivity and its Applications, Buffalo, NY 1991.  Editors:  Y. H. Kao, A. E. Kaloyeros and H. S. Kwok, pp 681-691

Projects

•   Controlled Synthesis Of Two-Dimensional Nanosheets and Multilayer For Electronic Devices

•    Designing of un-cooled IR Field Plane Array (IRFPA) sensor to facilitate the microelectronic industry.

•    Designing & fabrication of thin film solar cell.

•    Design and development of Piezoelectric Sensor

Alumni

Contact Person

Prof. Dr Saifullah Awan

Associate Head SEO Research Group,

Email: [email protected]