Subrata Sarker

Materials Scientist | Materials Data Scientist | Electrochemist

Ellicott City, Maryland, USA
Email: contact@subratasarker.com
Website GitHub LinkedIn Scholar

Professional Summary

Materials Scientist and Electrochemist with 12+ years of academic and industrial research experience in photovoltaics, electrochemical energy storage, thin‑film materials, device characterization, and electrochemical impedance spectroscopy (EIS). Experienced in designing and characterizing dye‑sensitized solar cells (DSSC), perovskite solar cells (PSC), supercapacitors, and related electrochemical systems.

Strong analytical background with hands‑on experience in Python, SQL, Power BI, Tableau, and machine learning fundamentals. Actively pursuing expertise in Materials Informatics—leveraging data‑driven methods, statistical modeling, and AI/ML workflows to accelerate materials discovery, optimize device performance, and extract structure–property–processing relationships from complex datasets.

Published 40+ peer‑reviewed research articles with 1500+ citations and an H‑index of 22, demonstrating a sustained record of scientific impact and interdisciplinary innovation.

Education

Ph.D. in Materials Science and Engineering from Hongik University, Sejong, South Korea Research focused on electrochemical characterization and mathematical modeling of photovoltaic devices.

M.Sc. in Physical-Inorganic Chemistry from University of Dhaka, Dhaka, Bangladesh

B.Sc. in General Chemistry from University of Dhaka, Dhaka, Bangladesh

Core Competencies

Materials Science & Electrochemistry

  • Advanced Electrochemical Analysis — EIS modeling, CV interpretation, kinetic/transport parameter extraction, mechanistic diagnostics

  • Photovoltaic & Optoelectronic Devices — DSSC/PSC architecture engineering, defect/passivation strategies, charge‑transport optimization

  • Electrochemical Energy Storage — supercapacitor electrode design, interface engineering, electrolyte optimization

  • Thin‑Film Engineering — controlled deposition, microstructure tuning, film–substrate interface control

  • Functional Materials — perovskites, metal oxides, carbon nanostructures, conductive polymers

  • Interfacial & Charge‑Transfer Physics — recombination pathways, band alignment, interfacial kinetics

  • Device Reliability & Degradation — accelerated aging, environmental stress testing, failure‑mode analysis

  • Spectroscopy‑Driven Characterization — optical/electrical correlation, structure–property mapping

  • Experimental Strategy — hypothesis‑driven design, design of experiments (DOE), quantitative interpretation of complex datasets

Analytical & Laboratory Techniques

  • Microscopy & Microanalysis — AFM, SEM, EDS for morphology, topology, and compositional profiling

  • Spectroscopic Methods — UV–Vis, FT‑IR, PL for electronic/structural insights

  • Electrochemical Instrumentation — high‑precision potentiostats, impedance analyzers, advanced measurement workflows

  • Controlled‑Atmosphere Processing — Oxygen (O₂)/Moisture (H₂O)‑sensitive fabrication and device encapsulation

  • Thin‑Film & Device Fabrication — multilayer stack engineering, surface preparation, encapsulation reliability

  • Scientific Operations — instrumentation calibration, method validation, SOP creation and optimization

Data Analytics & Programming

  • Python for Scientific Computing — NumPy, SciPy, Pandas, Matplotlib, Scikit‑learn for modeling and analysis

  • Data Engineering Workflows — ETL, feature engineering, reproducible pipelines for experimental and device datasets

  • Statistical & ML Methods — regression, clustering, dimensionality reduction, predictive modeling for materials discovery

  • Database & Query Systems — SQL — MySQL, PostgreSQL — for structured scientific data management

  • Visualization & BI — Power BI, Tableau, Cognos, Looker Studio for insight‑driven reporting

  • Version‑Controlled Research — Git/GitHub for reproducible scientific workflows

Cloud & Technical Skills

  • AWS Cloud Infrastructure — hands-on familiarity with Route 53, compute (EC2), storage (S3), networking (VPC), identity (IAM), and databases (RDS)

  • Serverless Systems — Lambda, API Gateway, S3, CloudFront for automated data pipelines, microservices, and low‑latency deployments

  • Cloud‑Native Automation — CI/CD orchestration, GitHub Actions, automated testing, artifact versioning, and environment provisioning

  • Distributed Application Deployment — static and dynamic site hosting, global content delivery, and performance optimization

  • Modern Web Frameworks — Astro and React.js for scientific dashboards, cloud‑integrated interfaces, and data‑driven applications

Professional Experience

Research Professor

Hongik University, Sejong, South Korea

March 2023 – May 2025

  • Conducted advanced research on dye-sensitized solar cells and supercapacitors.
  • Designed and optimized electrochemical characterization workflows using EIS and related electrochemical techniques.
  • Investigated charge transport, recombination behavior, and device degradation mechanisms.
  • Supervised graduate and undergraduate students in laboratory research activities.
  • Conducted laboratory classes and provided instruction in electrochemistry and materials science topics.
  • Published multiple peer-reviewed journal articles.
  • Collaborated with interdisciplinary research groups on energy materials and device engineering.
  • Managed scientific instrumentation and laboratory operations.

Visiting Scholar

Coppin State University, Baltimore, Maryland, USA

April 2024 – May 2024

  • Presented research on electrochemical characterization of dye-sensitized solar cells.
  • Demonstrated electrochemical impedance spectroscopy (EIS) methodologies.
  • Collaborated with faculty and researchers on electrochemical materials characterization.
  • Participated in academic discussions and research seminars.

Research Professor

University of Skill Enrichment and Technology (USET), Narayanganj, Bangladesh

January 2022 – May 2023

  • Conducted undergraduate classes.
  • Collaborated with interdisciplinary research groups on electrochemical sensors and energy devices.

Research Professor

Korea University, Sejong, South Korea

March 2019 – Sep 2021

  • Conducted advanced research on perovskite solar cells.
  • Conducted laboratory classes and provided instruction in electrochemistry and materials science topics.
  • Published multiple peer-reviewed journal articles in materials science.
  • Collaborated with interdisciplinary research groups on energy materials and device engineering.

Postdoctoral Researcher

Hongik University, Sejong, South Korea

March 2016 – May 2018

  • Conducted advanced research on dye-sensitized solar cells.
  • Designed and optimized electrochemical characterization workflows using EIS and related electrochemical techniques.
  • Investigated charge transport, recombination behavior, and device degradation mechanisms.
  • Supervised graduate and undergraduate students in laboratory research activities.
  • Conducted laboratory classes and provided instruction in electrochemistry and materials science topics.
  • Published multiple peer-reviewed journal articles in materials science and electrochemistry.
  • Collaborated with interdisciplinary research groups on energy materials and device engineering.
  • Managed scientific instrumentation and laboratory operations.

Graduate Researcher

Hongik University, Sejong, South Korea

March 2013 – August 2013

  • Conducted advanced research on dye-sensitized solar cells.
  • Designed and optimized electrochemical characterization workflows using EIS and related electrochemical techniques.
  • Investigated charge transport, recombination behavior, and device degradation mechanisms.
  • Published multiple peer-reviewed journal articles in materials science and electrochemistry.
  • Managed scientific instrumentation and laboratory operations.

Graduate Researcher

Konkuk University, South Korea

September 2007 – December 2012

  • Conducted research in photovoltaic devices.
  • Fabricated and characterized dye-sensitized solar cells.
  • Performed extensive electrochemical and spectroscopic analysis.
  • Developed expertise in thin-film processing and device optimization.
  • Published multiple peer-reviewed journal articles.

Quality Assurance Officer

Quasem Drycells Ltd., Tangail, Bangladesh

August 2003 – August 2007

  • Performed analytical tests of raw materials for dry cells (Zinc-Carbon Battery).
  • Analyzed the results of testing and determined the acceptability of results against pre-determined criteria.
  • Reviewed, and edited SOPs, reports, and other documentation.
  • Reviewed the implementation and efficiency of quality and inspection systems.
  • Evaluated the adequacy of quality assurance standards.
  • Coordinated and supported on-site audits conducted by internal and external providers.
  • Collaborated with functional departments to resolve issues.

Quality Assurance Officer

Opsonin Pharma Ltd., Barisal, Bangladesh

June 2002 – July 2003

  • Reviewed new test procedures and assays.
  • Analysed existing product issues and provided appropriate resolutions.
  • Participated in training programs for analysts.

Chemist

Meghna Cycle Ltd., Dhaka, Bangladesh

July 2001 – May 2002

  • Maintained accurate inventory of chemicals.
  • Maintained accurate records of quality inspections, audits, and deviations.
  • Oversaw testing and inspection of raw materials, components, and finished products.
  • Monitored production processes to identify and address quality issues.
  • Collaborated with production teams to identify and resolve quality-related challenges.

Research Fellow

University of Dhaka, Bose Center, Dhaka, Bangladesh

March 2001 – June 2001

  • Studied colloidal manganese dioxide (MnO₂) as a viable and cost-effective catalyst for mitigating unburnt hydrocarbons in vehicle exhaust

Research Interests

  • Electrochemistry
  • Electrochemical Impedance Spectroscopy (EIS)
  • Dye-Sensitized Solar Cells
  • Perovskite Solar Cells
  • Supercapacitors
  • Batteries and Energy Storage
  • Thin-Film Materials
  • Semiconductor Interfaces
  • Materials Informatics
  • Scientific Data Analytics
  • AI-Assisted Scientific Research

Publications & Academic Impact

  • 40+ peer-reviewed journal publications
  • 1500+ citations
  • H-index: 22

Selected Projects

AWS-Powered Personal Website Infrastructure

  • Built and deployed personal websites using Astro framework and AWS.
  • Configured S3 static hosting, CloudFront CDN, Route 53 DNS, and CI/CD pipelines.
  • Implemented secure contact form architecture using API Gateway, Lambda, and Amazon SES.
  • Configured GitHub Actions workflows for automated deployment.

Power BI Sales Analytics Dashboard

  • Developed analytical dashboards using Power BI and SQL.
  • Built star-schema data models for sales reporting.
  • Created KPI tracking and visualization workflows.
  • Performed ETL and data transformation operations.

Python-Based ETL Workflow

  • Developed configurable Python ETL pipelines for structured data processing.
  • Implemented logging, anomaly tracking, and schema normalization.
  • Automated cleaning and transformation of large datasets.

Certifications & Training**

  • IBM Data Analyst Professional Certificate
  • AWS Cloud Architect Nanodegree
  • Prompt Engineering for ChatGPT
  • Advanced Data Analysis
  • Trustworthy Generative AI

Teaching & Mentoring**

  • Mentored graduate and undergraduate students in laboratory research.
  • Provided instruction and guidance in electrochemistry, spectroscopy, kinetics, and materials science.
  • Assisted students with experimental design and scientific analysis.
  • Supported collaborative and interdisciplinary research environments.

Technical Writing & Communication

  • Scientific manuscript preparation and peer-reviewed publication
  • Technical presentations and demonstrations
  • Research proposal development
  • Scientific data visualization and reporting
  • Cross-disciplinary technical communication

Additional Information

  • Open to opportunities in materials science, electrochemistry, energy materials, materials informatics, and data analytics