Comilla University | Dr. Abdul Ahad (on study leave)

Dr. Abdul Ahad (on study leave)

Assistant Professor

Comilla University
Cumilla-3506, Bangladesh

ahad@cou.ac.bd ahadphycou@gmail.com

(+81) 09097638668

Biography
Qualification
Publication
Research Interest

Dr. Abdul Ahad is from Sunamganj, Sylhet. He has been working as an Assistant Professor in the Department of Physics at Comilla University since April 2022 (On study leave from 1^st October 2022). He was appointed as a lecturer in the Department of Physics, CoU, in 2019. Before joining CoU, he also worked as a lecturer in the Department of Textile Engineering of Uttara University, Bangladesh. In CoU, Ahad taught Mechanics, Heat and Thermodynamics, and Advanced Electronics and Telecommunication courses.

He received his BSc and MSc degrees in Physics from the Department of Physics, Comilla University, Bangladesh, and an M.Phil. in Physics from the Department of Physics, Bangladesh University of Engineering and Technology (BUET), Bangladesh. He completed his PhD in the Department of Physics at Tokyo Metropolitan University, Japan, as a fellow of the Tokyo Global Partner Scholarship Program provided by the Tokyo Metropolitan Government.

During his PhD, he developed, for the first time, a single-substrate synthesis method for WS₂ nanotubes on an insulating substrate and subsequently controlled their morphology by forming aligned arrays of nanotubes. He is currently working as a Postdoctoral Researcher in the Nanostructure Physics Lab at Tokyo Metropolitan University, Japan. His research includes developing a chemical vapor transport (CVT) method to synthesize doped WS₂ nanotubes and fabricating nano-devices using photolithography and lift-off processes.

Ahad received several national and international grants and scholarships, including the National Science and Technology (NST) Fellowship 2018, the UGC Research Grants for 2020–21 and 2021–22 probided by Comilla Univeristy, the NIMS Graduate Research Assistantship (April 2022), Tsukuba, Japan, the Tokyo Global Partner Scholarship Program (2022) provided by the Japanese Government, and the Outstanding Researcher Award 2025 awarded by Comilla University. His research interests include 'Condensed matter physics' and 'Physical chemistry'. Essentially, he and his group synthesize the materials using solid-state reactions, spray pyrolysis, spin coating, resistance heating method, and CVD techniques and investigate the structure and physical properties of the materials using FESEM, AFM, XRD, TEM, XPS, Raman, VSM, and UV-vis spectroscopy.

Education Qualification
Job Experience

PhD	Tokyo Metropolitan University	Physics	2025
M.Phil	Bangladesh University of Engineering and Technology	Physics	2022
M.Sc	Comilla University	Physics	2018
B.Sc	Comilla University	Physics	2016

Tokyo Metropolitan University, Japan Postdoctoral Researcher October 2025 - Present
Comilla University, Bangladesh Assistant Professor (On study leave) April 2022 - Present
Comilla University, Bangladesh Lecturer December 2019 - April 2022
Uttara University, Bangladesh Lecturer August 2018 - December 2019

1	J.H. Bhuiyan a b c, M.A. Taher, Md. Sarowar Hossain, R. Rashid, M.K. Alam, A. Ahad, T. Ahamed and M.N.I. Khan : Structure-based magneto-dielectric properties enhanced by Cr doping in Bi0.9La0.075Ce0.025FeO3 perovskite , Surfaces and Interfaces , ELSEVIER , doi:https://doi.org/10.1016/j.surfin.2025.107949 , indexed: WoS , (impact factor:6.5, Quartile: Q1) vol.76 , pp.107949 , November , 2025 . View More
2	Ahad, A., Podder, J., Saha, T., and Das and H. N. : Effect of chromium doping on the band gap tuning of titanium dioxide thin films for solar cell applications , Heliyon , CellPress , no.1 , doi:https://doi.org/10.1016/j.heliyon.2023.e23096 , indexed: WoS , (impact factor:3.6*, Quartile: Q1) vol.10 , January , 2024 . View More
3	Hasan, K., Ahad, A., Das, M.K., Akter, M., Khan, M.N.I., Farhad, S.F.U. and Taher and M.A. : Effect of vanadium doping on structural, dielectric, magnetic, and ferroelectric properties of Ba0.95La0.05TiO3 ceramics* , Materials Chemistry and Physics , Elsevier , doi:https://doi.org/10.1016/j.matchemphys.2024.129854 , indexed: WoS , (impact factor:4.7*, Quartile: Q1) vol.326 , pp.129854 , October , 2024 . View More
4	Das, M.K., Dey, A., Ferdaus, J., Das, B.C., Ahad, A., Hoque, M.A., Bashar, M.S. and Rahaman and M. : Investigation of the structural, magnetic, and dielectric properties of Al-substituted Li-Ni-Mn ferrites , Results in Physics , Elsevier , doi:https://doi.org/10.1016/j.rinp.2024.107460 , indexed: WoS , (impact factor:4.6*, Quartile: Q1) vol.58 , pp.107460 , March , 2024 . View More
5	Ahad, A., Yomogida, Y., Rahman, M.A., Ihara, A., Miyata, Y., Hirose, Y., Shinokita, K., Matsuda, K., Liu, Z. and Yanagi and K. : Synthesis of Arrayed Tungsten Disulfide Nanotubes , Nano Letters , ACS Publications , no.45 , doi:https://doi.org/10.1021/acs.nanolett.4c03895 , indexed: WoS , (impact factor:9.6*, Quartile: Q1 (Published with cover arts)) vol.24 , pp.14286–14292 , October , 2024 . View More
6	Ahad, A., Podder, J., Rahman, F. and Das and H.N. : Effect of Nickel Doping on the Structural, Optical, and Electrical Properties of Titanium Dioxide Thin Films for Application of Sensing Devices , Results in Optics , Elsevier , doi:https://doi.org/10.1016/j.rio.2023.100579 , indexed: WoS , (impact factor:3.0*, Quartile: Q2) vol.13 , pp.100579 , December , 2023 . View More
7	Ahad, A., Ahamed, T., Biswas, M.B., Khandaker, E., Barik, A. and Taher and M.A. : Investigation of the effect of sintering temperatures on the structural and magnetic properties of (Bi0.90Sm0.10Fe0.93Cr0.07O3) ferrite* , Materials Chemistry and Physics , Elsevier , doi:https://doi.org/10.1016/j.matchemphys.2023.127790 , indexed: WoS , (impact factor:4.7*, Quartile: Q1) vol.303 , pp.127790 , July , 2023 . View More
8	Yomogida, Y., Nagano, M., Liu, Z., Ueji, K., Rahman, M.A., Ahad, A., Ihara, A., Nishidome, H., Yagi, T., Nakanishi, Y., Miyata, Y. and Yanagi and K. : Semiconducting Transition Metal Dichalcogenide Heteronanotubes with Controlled Outer-Wall Structures , Nano Letters, , ACS Publications , no.22 , doi:https://doi.org/10.1021/acs.nanolett.3c01761 , indexed: WoS , (impact factor:9.6*, Quartile: Q1) vol.23 , pp.10103-10109 , October , 2023 . View More
9	Ahamed, T., Ahad, A., Das, M.K., Taher, M.A., Miah, M.J. and Khan and M.N.I. : Synthesis and Characterization of Dielectric, Electric, and Magnetic Properties of Vanadium Doped-Bismuth Europium Ferrites for Multiferroic Applications* , Results in Physics , Elsevier , doi:https://doi.org/10.1016/j.rinp.2023.106571 , indexed: WoS , (impact factor:4.6*, Quartile: Q1) vol.50 , pp.106571 , July , 2023 . View More
10	Rahman, M.A., Yomogida, Y., Ahad, A., Ueji, K., Nagano, M., Ihara, A., Nishidome, H., Omoto, M., Saito, S., Miyata, Y., Gao, Y. and Yanagi and K. : Synthesis and optical properties of WS2 nanotubes with relatively small diameters , Scientific Reports , Nature Portfolio , no.1 , doi:https://doi.org/10.1038/s41598-023-44072-z , indexed: WoS , (impact factor:3.9*, Quartile: Q1) vol.13 , pp.16959 , October , 2023 . View More
11	Md. Shafiul Islam, A. Ahad and M. Kamal Hossain : Dual Color Photoluminescence Emissions from All- Inorganic CsPbBr3 Nanopillars , IOSR Journal of Applied Physics , IOSR-JAP , no.Sep. – Oct. 2022 vol.14 , pp.7-11 , October , 2022 .
12	Akter, S., Ahad, A., Das, M.K., Taher, M.A., Barik, A., Alam, F. and Khan and M.N.I. : Study of structural, dielectric, and impedance properties of lead-free Zr and Y Co-doped BaTiO3 , Materials Chemistry and Physics , Elsevier , no.Sep. – Oct. 2022 , doi:https://doi.org/10.1016/j.matchemphys.2021.125241 , indexed: WoS , (impact factor:4.7*, Quartile: Q1) vol.275 , pp.125241 , January , 2022 . View More
13	Liya, H.A., Akter, R., Ahad, A., Khan, M.N.I. and Miah and M.J. : Effect of Cu Incorporation on Structure, Densification and Magnetic Properties of Polycrystalline LixNi0.2Zn0.8-2xFe2+xO4 Ceramics , Journal of Applied Mathematics and Physics,(12 ), pp.3211-3229 , Scientific Research Publishing , no.12 , doi:https://doi.org/10.4236/jamp.2021.912210 , indexed: CrossRef , (impact factor:1.0, Quartile: Q3) vol.9 , pp.3211-3229 , December , 2021 . View More
14	M. J. Miah1, Mehbuba Rashid Mouri1, A. Ahad1, M. A. Taher1 and A. K. M. Akther Hossain2 : Sintering Temperature Dependent Magnetic and Dielectric Properties of Polycrystalline xBa0.95Sr0.05TiO3-(1 - x)BiFe0.90Gd0.10O3 Ceramics* , Journal of Applied Mathematics and Physics , Scientific Research Publishing , doi:https://doi.org/10.4236/jamp.2020.89135 , indexed: CrossRef , (impact factor:1.0, Quartile: Q3) vol.8 , pp.1799-1813 , September , 2020 . View More
15	Ahad, A., Taher, M.A., Das, M.K., Rahaman, M.Z. and Khan and M.N.I. : Effect of Y substitution on magnetic and transport properties of Ba0.95La0.05Ti1−xYxO3 ceramics. , Results in Physics , Elsevier , doi:https://doi.org/10.1016/j.rinp.2019.01.072 , indexed: Scopus, WoS , (impact factor:4.6*, Quartile:Q1) vol.12 , pp.1925-1932 , March , 2019 . View More

Presentations at conferences and workshops-

(26) A. Ahad, M. A. Rahman, Y. Yomogida, Y. Miyata, Y. Hirose, K. Shinokita, K. Matsuda, Z. Liu, and K. Yanagi, "Development of the Synthesis Technique of WS₂ Nanotubes and Their Physical Properties", The 4^th International Conference on Japan−Bangladesh Research and Practice (JBRP2025) Dec 13-14, 2025, Kawasaki, Kanagawa, Japan.

(25) A. Ahad, R. Higashinaka, M. Kikuchi¹, S. Saito,S. Kusaba, Z. Liu, Y. Miyata, Y. Hirose, and K. Yanagi,"Synthesis and Electrical Properties of Rhenium-Doped Tungsten Disulfide Nanotubes", 15^thA3 symposium on Emerging Materials, November 13 -15, 2025, Kitakyushu-shi, Fukuoka 802-0001, Japan

(24) A. Ahad, M. A. Afzal, R. Higashinaka, M. Kikuchi, S. Saito, S. Kusaba, Z. Liu, Y. Miyata, Y. Hirose, and K. Yanagi, “Synthesis of Rhenium Doped WS₂Nanotubes and their electrical properties” The 25^th International Conference on the Science and Applications of Nanotubes and Low-Dimensional Materials, Kyoto University Clock Tower Centennial Hall, June 15 -20, 2025.

(23) A. Ahad, R. Higashinaka, M. Kikuchi, M. A. Afzal, S. Saito, S. Kusaba, Z. Liu, Y. Miyata, Y. Hirose, and K. Yanagi, “Controlled Synthesis of Re-Doped WS₂ Nanotubes for Enhanced Electrical Conductivity” 3^rd workshop on advanced nanostructured and materials science, Atami Spring Terrace Hotel, Japan, May 09, 2025.

(22) A. Ahad, M.A Afzal, R. Higashinaka, M. Kikuchi1, S. Saito, S. Kusaba1, Y. Miyata, Y. Hirose, Z. Liu and K. Yanagi, "Synthesis of Rhenium Doped WS₂ Nanotubes", The 68th Fullerenes-Nanotubes-Graphene General Symposium, Meijo University Tenpaku Campus, Japan, March 3-5, 2025.

(21) A. Ahad, Y. Yomogida, M. A. Rahman, Y. Miyata, Y. Hirose, K. Shinokita, K. Matsuda, Z. Liu, and K. Yanagi, "Synthesis and Properties of Arrayed WS₂ nanotubes", Science　of　2.5　Dimensional　Materials:　Paradigm　Shift　of　Materials　Science　Towards　Future　Social　Innovation;　The　8^th Project　meeting　on　December　8-9,　2024　at　　Sanjo　Conference　Hall　The　University　of　Tokyo.　

(20) A. Ahad, Y. Yomogida, M. A. Rahman, Y. Miyata, Y. Hirose, K. Shinokita, K. Matsuda, Z. Liu, and K. Yanagi, "Synthesis and Anisotropic Properties of Controllable Density Arrayed WS₂ nanotubes", 3rd Interdisciplinary Workshop on Quantum Materials, Tokyo Metropolitan University (TMU), Japan, December 04, 2024.

(19) A. Ahad, Y. Yomogida, M. A. Rahman, Y. Miyata, Y. Hirose, K. Shinokita, K. Matsuda, Z. Liu, and K. Yanagi "Synthesis of Arrayed Tungsten Disulfide Nanotubes with Controllable Density and Their Structural Evolution "2024 Workshop on JUNCTION: Japan-US Network for Clean Energy Technologies Involving Oriented Nanotubes, Yokohama Port Opening Memorial Hall, Yokohama, Japan, 10th September 2024.

(18) Masaharu Kikuchi, Akane Ihara, Abdul Ahad, Md. Ashiqur Rahman, Shigeki Saito, Kazuhiro Yanagi "Transport Characteristics of CVD-synthesized WS₂ Nanotubes with a diameter of 10 nm" The 67th Fullerenes-Nanotubes-Graphene General Symposium, Kochi University of Technology, Eikokuji Campus, September 1-3, 2024.

(17) Abdul Ahad, Md. Ashiqur Rahman, Yohei Yomogida, Kan Ueji, Yasumitsu Miyata, Yasushi Hirose, Zheng Liu, and Kazuhiro Yanagi, "Synthesis of Arrayed Tungsten Disulfide Nanotubes on r-Plane Sapphire Substrate (Oral presentation)." Research Exchange Meeting, Atami Spring Terrace Hotel, Japan, June 21–22, 2024.

16) Abdul Ahad, Md. Ashiqur Rahman, Yohei Yomogida, Kan Ueji, Yasumitsu Miyata, Yasushi Hirose, Zheng Liu, and Kazuhiro Yanagi, "Synthesis of Arrayed Tungsten Disulfide Nanotubes (Poster presentation)." The 7th Regional Meeting' (2.5-dimensional materials science), Kyoto University, Japan, June 14-15, 2024.

15) Abdul Ahad, Md. Ashiqur Rahman, Yohei Yomogida, Kan Ueji, Akane Ihara, Yasumitsu Miyata, Yasushi Hirose, and Kazuhiro Yanagi, "Synthesis of Arrayed Tungsten Oxides Nanowires and Their Conversion into Nanotubes," The 66th Fullerenes-Nanotubes-Graphene General Symposium, Nagoya University, Japan, March 6-8, 2024.

14) J. H. Bhuiyan, A. Ahad, M. A. Taher, R. Rashid, A. Kumar, M. R. Hassan, Md. Sarowar Hossain, T. Ahamed, F. Khanam, M. N. I. Khan, “Investigating Structural, Optical, and Magnetic Properties of Chromium-doped Lanthanum Cerium Bismuth Ferrite”, International Conference on Physics-2024, 09-11 May 2024, organized by the Bangladesh Physical Society.

13) F. Khanam, M.A. Taher, A. Ahad, R. Rashid, A. Kumar, M. R. Hasan, T. Ahamed, J. H. Bhuiyan, M. K. Alam, M. N. I. Khan, “Investigating Structural and Dielectric Properties of Cobalt Doped Bismuth Europium Manganese Ferrites”, International Conference on Physics-2024, 09-11 May 2024, organized by the Bangladesh Physical Society.

12) Abdul Ahad, Md. Ashiqur Rahman, Yohei Yomogida, Kan Ueji, Akane Ihara, Yasumitsu Miyata, Yasushi Hirose, and Kazuhiro Yanagi, "Synthesis of Arrayed WS₂ Nanotubes", 2nd workshop of Quantum material research center, Tokyo Metropolitan University (TMU), Japan, December 13, 2023.

11) Md. Ashiqur Rahman1, Yohei Yomogida, Abdul Ahad, Kan Ueji, Mai Nagano, Akane Ihara, Hiroyuki Nishidome, Mikito Omoto, Shigeki Saito, Yasumitsu Miyata, Yanlin Gao, Susumu Okada, and Kazuhiro Yanagi, "Synthesis and optical properties of WS₂ nanotubes with relatively small diameters", 2nd workshop of Quantum material research center, Tokyo Metropolitan University (TMU), Japan, December 13, 2023.

10) Abdul Ahad, Md. Ashiqur Rahman, Yohei Yomogida, Kan Ueji, Akane Ihara, Yasumitsu Miyata, Yasushi Hirose, and Kazuhiro Yanagi, “Single Substrate Synthesis of Tungsten Disulfide Nanotubes”, The Atami Workshop, Atami Spring Terrace Hotel, Japan, September 11-12, 2023.

9) Abdul Ahad, Md. Ashiqur Rahman, Yohei Yomogida, Kan Ueji, Mai Nagano, Akane Ihara, Yasumitsu Miyata, and Kazuhiro Yanagi, "Comparative Study on the CVD Synthesis of Tungsten Oxides Nanowires Using Different Substrate", The 64th Fullerenes-Nanotubes-Graphene General Symposium, Nagoya University, Japan, March 1-3, 2023.

8) Md. Ashiqur Rahman, Yohei Yomogida, Kan Ueji, Abdul Ahad, Mai Nagano, Akane Ihara, Yasumitsu Miyata, and Kazuhiro Yanagi, "Synthesis of relatively-small diameter WS₂ nanotubes by sulfurization of CVD-grown tungsten oxide nanowires and their optical properties", The 64th Fullerenes-Nanotubes-Graphene General Symposium, Nagoya University, Japan, March 1-3, 2023.

7) Abdul Barik, Abdul Ahad, Md Majibul Haque Babu, Jiban Podder, Mehnaz Sharmin, "Investigation of structural, optical and electrical properties of calcium substituted barium titanate thin films for various optoelectronic applications", International Conference on Physics-2022, 19-21 May 2022. Arranged by Bangladesh Physical Society, Held Atomic Energy Centre, Bangladesh.

6) A. Ahad, M.A. Taher, R. Rashid, F.M Kamal, M.M Hoque, M. K. Das, T.S Antor, R. Das and M.N.I Khan, “Effect of Y substitution on the B-site of Ba₀.₉₅La₀.₀₅TiYO₃and Comparison Study of Electrical and Magnetic”, 3^rd International Conference on - Physics for Sustainable Development & Technology, CHEUT, Bangladesh, 18-19 December 2019.

5) A. Ahad, A. Taher, Mitthum Kumar Das, M.N.I. Khan, “Study of Electrical and Magnetic Properties of Y Dopedd Ba_0.95La_0.05TiO₃ Ceramic”, National Conference on Electronics and Informatics-2019, held on 04-05 December 2019. Arranged by Bangladesh Electronic Society, Held at the University of Dhaka, Bangladesh.

4) A. Ahad, M.A. Taher, M.K. Hasan, M.N.I. Khan, “Permeability and Dielectric Measurements of Yttrium Doped Ba_0.95La_0.05TiO₃ ceramics”, International Conference on Nanotechnology and Condensed Matter Physics-2018 (ICNCMP 2018), January 11-12, 2018, BUET, Bangladesh.

3) A. Ahad, M.A. Taher, M.N.I. Khan, “Synthesis and Investigation of Magnetic and Transport Properties of Yttrium Doped Ba_0.95La_0.05TiO₃ Ceramics” International Conference on Physics on 08-10 March 2018. Arranged by Bangladesh Physical Society, Held at the University of Dhaka, Bangladesh.

2) A. Ahad, M.A. Taher, Mithun Kumar Das, M.N. Hossain, M.N.I. Khan, “Synthesis and Observation of Transport Properties and Enhancement of Magnetic Properties of Yttrium Doped Ba_0.95La_0.05TiO₃ Ceramics”, Conference on Weather Forecasting & Advances in Physics 11-12 May 2018, KUET, Bangladesh.

1) A. Ahad, A. Taher, Mitthum Kumar Das, T.A. Biman, M.M. Haque. S.I Liba, S.M. Hoque, Z. Begum, M.R. Hasan and M.N.I. Khan, “Observation of electric and magnetic properties of Ba₀.₉₅La₀.₀₅Ti_1-xY_xO₃”, International Conference on Electronics and ICT 25-26 November 2018, Atomic Energy Center Dhaka, Bangladesh.

Synthesis and Characterization of-
# Perovskite materials
# Metal oxide thin films
# Nano-materials, inorganic nanowires, and nanotubes.
# Nanodevice fabrication using photolithography & lift-off process.