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Hire Dr. Indrajit S.

India

USD 15 /hr

PhD Researcher | Gas/Vapor Sensor Device | Semiconductor Devices | Device Fabrication & Characterization

Profile Summary

I am a PhD researcher specializing in semiconductor gas sensor devices, with strong expertise in the design, fabrication, and characterization of nanostructured metal oxide sensors, particularly ZnO-based homojunction and bipolar junction transistor (BJT) devices. My research focuses on developing non-invasive, cost-effective sensing of various gases/vapors with potential applications in healthcare diagnostics, environmental monitoring, and industrial safety. I have successfully developed and tested sensor devices capable of detecting alcohols, aromatic hydrocarbons, and acetone at room temperature. I bring hands-on experience in a wide range of fabrication and synthesis techniques, including sol-gel, hydrothermal, electrochemical deposition, chemical bath deposition, spin/dip coating, and metal deposition (via thermal and e-beam evaporation). I am also skilled in advanced material and device characterization using FESEM, EDX, AFM, XRD, PL, EIS, and electrical measurement systems. In addition, I have experience in simulation and modeling using tools such as ANSYS, Tanner T-Spice, and Origin for data analysis and device optimization. My work has resulted in multiple publications in reputable international journals (IEEE, Elsevier, IOP) and a granted Indian patent. I have also received recognitions, including the Best PhD Thesis Award and INSPIRE Fellowship. I am particularly interested in consulting and collaborative projects involving gas/vapor sensor development, semiconductor devices, nanoelectronics, and wearable sensing technologies. I can assist with device design, experimental planning, data analysis, technical writing, and research guidance.

Subject Matter Expertise

• ☆ Nanotechnology
• ☆ Semiconductors
• ☆ Electronics Engineering
• ☆ Microelectronics
• ☆ Peer Review
• ☆ Technical & Scientific Writing
• ☆ Manuscript & Journal Article Writing
• ☆ Proofreading & Editing
• ☆ Grant Writing

Services

• Writing
• Research

Writing Technical Writing, General Proofreading & Editing

Research Scientific and Technical Research

Work Experience

Visiting Faculty

Netaji Subhash Engineering College, Garia, West Bengal, India

August 2025 - March 2026

Ph.D. Research Scholar

Indian Institute of Engineering Science and Technology

2018 - 2025

Education

M.TECH

MCKV Institute of Engineering

June 2016 - July 2018

B.TECH

Supreme Knowledge Foundation Group of Institutions

June 2009 - July 2013

Certifications

• Certification details not provided.

Publications

BOOK CHAPTER

Indrajit Sil, Ranita Halder, Partha Bhattacharyya (2025). Semiconducting Metal Oxide–Based p–n Homojunction as a Potential Gas and Vapor Sensing Device . Advanced Solid-state Devices for Emerging Nanotechnologies.

JOURNAL ARTICLE

Indrajit Sil, Ranita Halder, Anjali Patel, Bikramdeb Chakraborty, Partha Bhattacharyya (2025). Highly Efficient Room Temperature DMA and TMA Sensor Based on MoS2–ZnO Hybrid Channel FET Device . IEEE Sensors Letters.

I. Sil, B. Chakraborty, P. Bhattacharyya (2024). Exploring the Potentiality of ZnO-BJT for Efficient Detection of Low Concentration Alcohols Through Innovative Utilization of Transistor Properties . IEEE Sensors Journal.

I. Sil, A. Wakankar, A. Gayakwad, S. Mishra, V. Manjuladevi, R. K. Gupta, P. Bhattacharyya (2023). Cost Effective Fabrication and Current-Voltage Characteristics of ZnO Homojunction Based n-p-n Bipolar Junction Transistor . IEEE Electron Device Letters.

I. Sil, B. Chakraborty, K. Dutta, H. Awasthi, S. Goel, P. Bhattacharyya(2022). Capacitive Mode Vapor Sensing Phenomenon in ZnO Homojunction: An Insight Through Space Charge Model and Electrical Equivalent Circuit . IEEE Sensors Journal. 22. (10). Microsoft.AspNetCore.Mvc.Localization.LocalizedHtmlString 9483--9490. Institute of Electrical and Electronics Engineers ({IEEE})

I. Sil, B. Chakraborty, S. J. Shivaraja, A. Kumar, V. Manjuladevi, R. K. Gupta, P. Bhattacharyya (2020). Fabrication, Structural, Electrical, and Optical Characterizations of p-Nanoparticle- and n-Nanotube-Based ZnO Homojunction . IEEE Transactions on Electron Devices.

Indrajit Sil and Sagar Mukherjee and Kalyan Biswas(2017). A review of energy harvesting technology and its potential applications . ENVIRONMENTAL AND EARTH SCIENCES RESEARCH JOURNAL. 4. (2). Microsoft.AspNetCore.Mvc.Localization.LocalizedHtmlString 33--38. International Information and Engineering Technology Association

CONFERENCE PAPER

Indrajit Sil and Sagar Mukherjee and Kalyan Biswas(2019). Performance Comparison of CMOS and MEMS Based Thermal Energy Harvesters Using Finite Element Analysis . 2019 Devices for Integrated Circuit (DevIC). {IEEE}

Indrajit Sil and Kalyan Biswas(2018). Investigation of Design Parameters in MEMS Based Piezoelectric Vibration Energy Harvester . 2018 IEEE Electron Devices Kolkata Conference (EDKCON). {IEEE}

Indrajit Sil and Sagar Mukherjee and Kalyan Biswas(2018). Design Optimization of CMOS Thermoelectric Energy Harvester for High Thermoelectric Efficiency . 2018 2nd International Conference on Electronics, Materials Engineering & Nano-Technology (IEMENTech). {IEEE}

Indrajit Sil and Sagar Mukherjee and Kalyan Biswas(2017). Simulation and Analysis of CMOS Based Micro Thermoelectric Power Generator . 2017 International Conference on Computer, Electrical & Communication Engineering (ICCECE). {IEEE}

PATENT

A Process for Formation of Highly Stable Zinc Oxide Bipolar Junction Transistor.