Members

P.I.

Dr. Ariful Haque

 

Research Scholars & Postdoc Fellows

Dr. Subrata Karmakar currently serves as a postdoctoral researcher in the Ultrawide Bandgap research group under Dr. Haque at Texas State University (TXST), specializing in Physics, Materials Science, and Electrical Engineering since April 2022. Driven by a deep passion for research and a dedication to excellence, he enthusiastically explores various facets of thin films incorporating emerging ultra-wide bandgap materials such as β-Ga2O3, spinel Gallates (AGa2O4), GeO2, AlN, and GaN, alongside diverse carbon-based materials like diamond-like carbon, Q-carbon, and diamond. Leveraging techniques including PLD, PLA, HFCVD, and MPCVD, his research aims to develop materials suitable for high-power electronics, energy storage devices, and other technological applications. Dr. Karmakar holds a master’s degree (M.Sc.) in Physics from the Indian Institute of Technology (IIT), Bhubaneswar, and a Ph.D. in Materials Physics in 2022 from the National Institute of Technology (NIT), Rourkela, India. His current postdoctoral focus involves meticulously examining the materials growth and characterizations of structural, electrical, magnetic, and optical properties of thin films of novel ultrawide bandgap semiconductors to elucidate their features and potential applications. He has authored or co-authored more than 40 journal articles in esteemed, high-impact, peer-reviewed publications. Beyond academia and research, Dr. Karmakar enjoys cricket, reading, movies, and traveling.

Dr N. Manikantha Babu joined our group as a post-doctoral research fellow at Texas State University (TXST) in September 2023. He is currently focusing on developing novel Ultrawide Bandgap materials for their use in electronic and optoelectronic devices.

Ph.D. Students

Pallab Kumar Sarkar is a Ph.D. student in the Materials Science, Engineering & Commercialization (MSEC) program at Texas State University (TXST), joining in the summer of 2023. At TXST, he serves as a doctoral instructional/research assistant, specializing in Wide Bandgap (WBG) & Ultra-Wide Bandgap (UWBG) materials for future power electronics. Pallab holds a bachelor’s degree in Electrical and Electronic Engineering from Rajshahi University of Engineering and Technology (RUET), Bangladesh, earned in 2018. He pursued his MS degree in Electrical Engineering at Texas State University (TXST), graduating in 2023. During his studies, Pallab focused on the direct integration of diamonds on Ga2O3 using Q-carbon interfacial layer at the Advanced Micro/Nano Materials & Devices Lab at Texas State University. His expertise encompasses growth and characterization of thin films, wide bandgap materials, laser-solid interaction, thin-film defects, diamond, and physical and chemical vapor deposition fabrications. Pallab has authored or co-authored approximately 10 peer-reviewed articles in prestigious journals and conferences.

Ayesha Tasnim is currently pursuing a Ph.D. in Materials Science, Engineering, and Commercialization at Texas State University, having commenced her studies in the Summer of 2023. Ayesha earned both her Master’s and Bachelor’s degrees in Physics from the University of Rajshahi, Bangladesh, where she achieved the highest grades and ranked first in her class for both her undergraduate and graduate studies. Her research objective is to investigate the properties of new class of wide bandgap semiconductors through various material, electrical, and optical characterizations. By examining the viability of these materials at the device level, she seeks to identify promising candidates for fabrication. Outside of academia, Ayesha enjoys painting, reading storybooks, and playing games in her leisure time.

Ron Saha, currently pursuing his Ph.D. at Texas State University since Fall 2023, specializes in the study of wide bandgap semiconductors. His research centers on the stress-induced growth of HFCVD diamond and other ultrawide bandgap semiconductors, employing innovative fabrication techniques involving diverse carbon seeds. Holding both a Master’s and Bachelor’s degree in Electrical and Electronic Engineering from the University of Dhaka, Ron is driven by a passion to make significant contributions to semiconductor research and harbors aspirations for an academic career. Outside of academia, he enjoys traveling and discovering new destinations.

Saif Al Arafin Taqy is currently pursuing his Ph.D. at Texas State University (TXST), specializing in Materials Science, Engineering, and Commercialization since the Fall of 2023. As a member of the Micro/nano Devices Laboratory, he contributes to ongoing research endeavors focused on the exploration of thin films comprising emerging wide bandgap materials growth and characterization. Leveraging the PLD, PLA, HFCVD, and MPCVD techniques, his work aims to develop materials suitable for applications in high-power electronics. Having obtained a Master’s in Electrical Engineering at TXST and a Bachelor’s degree in Materials Science from the esteemed Bangladesh University of Engineering and Technology (BUET). Saif brings a robust academic background to his research pursuits. His primary objective is to meticulously investigate the properties of thin films of novel wide bandgap semiconductors through comprehensive material, electrical, and optical characterizations. Through his research, he aims to discern promising avenues for the fabrication of devices at a practical level. Beyond his academic endeavors, Saif enjoys leisurely pursuits such as music, reading, driving, swimming, and video games.

MS Students

Maria Sultana is an M.S. student in electrical engineering at Texas State University (TXST), commencing her studies in Fall 2022. Her research focuses on investigating the growth and electronic transport characteristics of ultrawide bandgap (UWBG) oxide and nitride heterojunctions. Maria’s primary area of concentration involves the utilization of UWBG materials such as Ga2O3 and AlN, as well as wide bandgap GaN, in high-power electronics and HEMTs. Maria obtained her Bachelor of Science in Electrical Engineering from Rajshahi University of Engineering and Technology (RUET), Bangladesh, in 2021. During her undergraduate studies, her research centered on the classification of EEG signals for brain-computer interface applications using deep neural networks. Beyond academia, Maria enjoys exploring the tranquility of nature.

Injamamul Hoque Emu is currently pursuing a Master of Science degree in Electrical Engineering at Texas State University, starting from the fall of 2022. His research is primarily focused on investigating the growth and fabrication of ultrawide bandgap (UWBG) semiconductors, such as Ga2O3 and Gallate (including CuGa2O4, MgGa2O4, ZnGa2O4), for applications in high-power electronics, optoelectronics, and photonics. He obtained his Bachelor of Science degree in Electrical and Electronic Engineering from the Chittagong University of Engineering and Technology (CUET), Bangladesh, in 2017. Injamamul aspires to make significant contributions to the field of Ultra-Wide Bandgap Semiconductor research. To date, he has authored three high-impact journal articles focusing on the fabrication and characterization of UWBG semiconductors. Apart from his academic endeavors, he has a keen interest in traveling and actively participates in sports, particularly soccer and cricket.

Md Abdul Hamid is a master’s student in Electrical Engineering at Texas State University (TXST), starting his studies in Fall 2022. His research is centered on investigating materials growth and device fabrication techniques for ultrawide bandgap (UWBG) semiconductors, particularly magnesium gallate (MgGa2O4), for use in high-power electronic devices. Mr. Hamid earned his bachelor’s degree in Electrical and Electronic Engineering from the University of Dhaka, Bangladesh. Outside of academia, he enjoys fishing in deep waters.

Istiaq Firoz Shiam is currently pursuing a Master of Science degree in Electrical Engineering at Texas State University (TXST), commencing his studies in 2022. His research focuses on exploring various growth and fabrication techniques for wide bandgap (UWBG) semiconductors, including GaN, AlGaN, and AlN, with applications in high-power electronics. His thesis revolves around innovative approaches to enhancing the structural and electrical properties of AlGaN/GaN HEMTs. Graduating with distinction, Istiaq earned a Bachelor of Science degree in Electrical and Electronic Engineering from Bangladesh University of Engineering and Technology (BUET) in 2018. With four years of industrial experience in consumer goods manufacturing, Istiaq aspires to become a distinguished researcher in UWBG semiconductors and seeks opportunities in semiconductor industry research and development in the future.

Adedayo Alaga, with a background deeply rooted in Electrical & Electronics Engineering, is currently pursuing an M.Sc. in Electrical Engineering at Texas State University (TXST), since January 2024. Prior to this, he attained an M.Sc. in Electrical & Electronics Engineering from the University of Lagos, Nigeria, in 2017, following his Bachelor’s degree in the same field from the University of Lagos in 2010. Adedayo’s research interests span a broad spectrum, encompassing Ultra-Wide Bandgap Semiconductor, Thin Film Technology, and UV-Photodetectors. Beyond academia, he derives enjoyment from playing table tennis and swimming, activities that offer him balance and relaxation in his life.

Mahfuz Ahmed Azmain is currently pursuing a Master’s degree in Electrical Engineering at Texas State University (TXST), commencing his studies in Fall 2023 at the Ingram Hall of Engineering. While he has yet to finalize his thesis topic, his research interests revolve around exploring growth and fabrication techniques for ultrawide bandgap (UWBG) semiconductors, particularly investigating the role of diamonds in power electronics and optoelectronics. Mahfuz was honored with the Graduate Merit Fellowship (2023-2024) in recognition of his outstanding academic achievements. He obtained his Bachelor’s degree in Electrical, Electronic, and Communication Engineering from the Military Institute of Science and Technology (MIST), Bangladesh, graduating with distinction. Mahfuz Ahmed Azmain is deeply passionate about conducting research in UWBG semiconductors and aspires to pursue a Ph.D. in semiconductor-related fields in the future.

Undergraduate Students

 

Alumni

Imteaz Rahman

Richard M. Medina

Ana M. Jaimes-Leal