Md Shahjahan
Summary
Experienced and passionate materials chemist with extensive hands-on experimental research experience in semiconductor processing and ultrafast nonlinear spectroscopic techniques. Developed and optimized procedures and equipment configurations for cost-effective single/multi step synthesis of semiconductor nanomaterials and their post-synthetic modification. Organized and dependable candidate successful at managing multiple priorities with a positive attitude. Willingness to take on added responsibilities to meet team goals.
Overview
6
6
years of professional experience
Work History
Post-doctoral Research Associate
Michigan State University
09.2022 - Current
- Building high-throughput microscope for imaging and optical characterization of semiconductor materials
- Hands-on experience of characterizing materials using various analytical instruments such as SEM-EDX, XRD, TEM, HR-TEM, and AFM
- Designing optical setup with continuous-wave and femtosecond lasers for laser-induced crystallization and manipulation
- Designing high-throughput robotic synthetic approach for next-generation energy materials
- Established and maintaining glove box setup for wet-lab synthesis
- Synthesis of narrowly size distributed semiconductor nanocrystals, thin films and microcrystals.
- Leveraged interpersonal and communication skills to mentor PhD students.
- Contributed to and actively participated in research conception, design and execution to address defined problems.
- Conducted independent research and development to attain short and long-term objectives.
Ph.D. Student
Hokkaido University
10.2018 - 09.2021
- Experienced various methods of nanomaterial synthesis and thin film depositions including Hot-injection (HI), Ligand-assisted Reprecipitation (LARP), one-step and sequential deposition method, spin coating, drop-casting, thermal evaporation
- Designed a novel laser trapping method for site-specific bandgap tuning, halide vacancy filling and study the charge carrier dynamics of perovskite semiconductor materials
- Established flexible spatial control of bandgap and photoluminescence for designing perovskite-based heterojunction structures by laser trapping
- Established controlled charge carrier transportation through optical/laser trapping in prepared perovskite heterojunctions
- Gained considerable technical and scientific knowledge to work with modern spectroscopy and microscopy
- Routinely presented the research findings in 10+ conferences to develop collaboration with the research communities.
Education
Ph.D. - Materials Science
Hokkaido University
Hokkaido, Japan09.2021
Master of Science - Physical Chemistry
University of Dhaka
Dhaka, Bangladesh08.2017
Bachelor of Science - Chemistry
University of Dhaka
Dhaka, Bangladesh11.2015
Skills
- Extensive experimental research experience in synthesis and processing semiconductor nanomaterials
- Nonlinear Spectroscopy: Femtosecond, picosecond, and continuous wave lasers
- Microscope Building: Design and construction of custom microscopes
- Optical Path Design: Development and optimization for precision
- Optical Alignment: Ensuring accurate experimental results
- Imaging Techniques: Confocal and wide field photoluminescence imaging
- Experimental design and work plans
- Safety awareness
- Research methodologies
- Manuscript writing
- Data analysis
- Problem-Solving
- Time Management
- Teamwork and Collaboration
- Problem-solving abilities
- Multitasking Abilities
- Excellent Communication
- Adaptability and Flexibility
- Laboratory Management
Publications
1. Halide Perovskite Single Crystals and Nanocrystal Films as Electron Donor-Acceptor Heterojunctions. Shahjahan, M., Okamoto, T., Chouhan, L., Sachith, B. M., Pradhan, N., Misawa, H., Biju, V., Angew. Chem. Int. Ed. 2023, 62, e202215947; (Featured on the cover page).
2. Heterojunction Perovskite Microrods Prepared by Remote Controlled Vacancy Filling and Halide Exchange. Shahjahan, M.; Yuyama, K.I.; Okamoto, T.; Biju, V. Adv. Mater. Technol. 2021, 6 (2), 2000934 (Featured on the cover page).
3. Shape-dependent Kinetics of Halide Vacancy Filling in Organolead Halide Perovskites.
Okamoto, T.; Shahjahan, M.; Biju, V. Adv. Optical Mater. 2021, 2100355 (Featured on the cover page).
4. Remote Tuning of Bandgap and Emission of Lead Perovskites by Spatially Controlled Halide Exchange Reactions. Islam, M. J. ┴; Shahjahan, M. ┴; Yuyama, K. I.; Biju, V. ACS Mater. Lett. 2020, 2 (4), 403–408 (Featured on the cover page).
5. Controlled Structural transformation of lead halide microcrystals by direct synthetic route and their vibrational dynamics study by THz Raman spectroscopy. Md Shahjahan, Md Ataur Rahman, Wu Rihan, Yaqing Zhang, and Elad Harel (Under revision in JACS)
6. Quantized Acoustic Phonons Map the Dynamics of a Single Virus. Yaqing Zhang, Rihan Wu, Md Shahjahan, Canchai Yang, Dohun Pyeon, Elad Harel (Submitted)
7. Chemical space-property predictor model of perovskite materials using high-throughput synthesis and artificial neural network (Under preparation)
8. Million-Spectra-Per-Second mapping of vibrational and excited state dynamics of phase-segregation in mixed-halide perovskite microcrystals (Under preparation)
Timeline
Post-doctoral Research Associate
Michigan State University
09.2022 - Current
Ph.D. Student
Hokkaido University
10.2018 - 09.2021
Ph.D. - Materials Science
Hokkaido University
Master of Science - Physical Chemistry
University of Dhaka
Bachelor of Science - Chemistry
University of Dhaka