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Hire Dr. Abhishek G.

Taiwan

USD 50 /hr

PhD in Physics | Materials Scientist | Density functional Theory | Thermoelectrics | 2D Materials

Profile Summary

I am a PhD-trained Materials Scientist and Physicist with postdoctoral research experience in thermoelectric materials, 2D materials, and nanoscale device physics, combining strong expertise in first-principles DFT simulations and advanced experimental research. I work with VASP and Quantum ESPRESSO for electronic structure, defect and doping studies, phonons, transport modeling (BoltzTraP, AMSET), and charge density analysis, supported by Python-based data processing and scientific visualization. Experimentally, I have extensive hands-on experience in bulk crystal growth and thin-film fabrication (RF/DC sputtering, CVD, PLD, thermal evaporation), thermoelectric measurements (ZEM-3, LSR-3, LFA), and advanced AFM/SPM techniques (KPFM, PFM, MFM, EFM, SThM), as well as synchrotron-based characterization (XPS, ARPES, LEIPS) and high/ultra-high vacuum systems. I have supervised PhD and MTech students, managed CVD and sputtering facilities, and published extensively in high-impact journals including ACS, Advanced Functional Materials, Small, Nanoscale, and J. Materials Chemistry C. For clients, I deliver publication-quality DFT simulations, experimental data interpretation, thermoelectric transport modeling, and professional scientific writing, with a strong focus on accuracy, reproducibility, and on-time delivery.

Subject Matter Expertise

• ☆ Surface Science
• ☆ Physical Chemistry
• ☆ Quantum Chemistry
• ☆ Theoretical Chemistry
• ☆ Computational Chemistry
• ☆ Wave Mechanics
• ☆ Applied Mechanics
• ☆ Theoretical Mechanics
• ☆ Statistical Mechanics
• ☆ Thermodynamics
• ☆ Particle Physics
• ☆ Quantum Mechanics
• ☆ Theoretical Physics
• ☆ Computational Physics
• ☆ Applied Physics
• ☆ X-Ray Technology
• ☆ Relativity Theory
• ☆ High-Pressure Physics
• ☆ Cryogenics
• ☆ Renewable Energy

Services

• Writing
• Research
• Consulting
• Product Development

Writing Creative Writing, Newswriting, General Proofreading & Editing

Research User Research, Feasibility Study, Technology Scouting, Fact Checking, Scientific and Technical Research, Systematic Literature Review

Consulting Scientific and Technical Consulting

Product Development Prototyping, Device Fabrication

Work Experience

POSTDOCTORAL RESEARCH FELLOW

Academia Sinica

July 2024 - Present

Education

PhD

Indian Institute of Technology, Delhi

January 2018 - March 2024

Masters of Science

Indian Institute of Technology Dhanbad

July 2015 - March 2017

Certifications

• PhD

  IIT DELHI

  January 2025 - Present

Publications

JOURNAL ARTICLE

Abhishek Ghosh, Narinder Kaur, Nisha Kodan, Dipika Sharma, Prashant Bisht, Rajendra Singh, Bodh Raj Mehta (2025). 2D-In2S3 nanoflakes/1D-WO3 nanorods heterojunction with enhanced absorption and photoresponse for photoelectrochemical water splitting . Renewable Energy.

Abhishek Ghosh, Chandan Kumar Vishwakarma, Prashant Bisht, Narinder Kaur, Mujeeb Ahmad, Bodh Raj Mehta (2024). Understanding the Role of Oxygen-Passivated Grain Boundary in Modulating the Thermoelectric Properties of Sb2Te3 Thin Film . ACS Applied Energy Materials.

Abhishek Ghosh, Prashant Bisht, Branson D Belle, Pallavi Aggarwal, Wen Xing, Narinder Kaur, J. P. Singh, B. R. Mehta (2024). Gas Sensing Properties of PLD Grown 2D SnS Film: Effect of Film Thickness, Metal Nanoparticle Decoration, and In Situ KPFM Investigation . Small.

Ghosh, Abhishek, Bisht, Prashant, Belle, Branson D, Aggarwal, Pallavi, Xing, Wen, Kaur, Narinder, Singh, JP, Mehta, BR(2024). Gas Sensing Properties of PLD Grown 2D SnS Film: Effect of Film Thickness, Metal Nanoparticle Decoration, and In Situ KPFM Investigation. Small. p. 2307037. Wiley Online Library

Abhishek Ghosh, Narinder Kaur, Prashant Bisht, Rajendra Singh, Bodh Raj Mehta (2023). Extended Photoresponse in the UV–Visible Region with Multilayered Band Alignment in a In2S3-WO3-ZnO Nanostructure Heterojunction for Photoelectrochemical Water Splitting . ACS Applied Nano Materials.

Abhishek Ghosh, Nikita Malhotra, Narinder Kaur, Manan Mehta, Nisha Kodan (2023). Enhanced Photoelectrochemical Response of the ZnO/V2O5 Heterojunction Via Improved Visible-Light Absorption and Charge Carrier Separation . ACS Applied Energy Materials.

Abhishek Ghosh, Pallavi Aggarwal, Prashant Bisht, Anil Kumar Gourishetty, Edward Yi Chang, Bodh Raj Mehta, Rajendra Singh (2023). γ-Ray-Induced Surface-Charge Redistribution and Change of the Surface Morphology in Monolayer WS2 . ACS Applied Nano Materials.

Abhishek Ghosh, Asha Kumari, Bodh Raj Mehta, Aloka Sinha (2023). Synergetic Enhancement of Seebeck Coefficients and Electrical Conductivity in Flexible Liquid Crystal Composites . ACS Sustainable Chemistry & Engineering.

Ghosh, Abhishek, Aggarwal, Pallavi, Bisht, Prashant, Gourishetty, Anil Kumar, Chang, Edward Yi, Mehta, Bodh Raj, Singh, Rajendra(2023). $γ$-Ray-Induced Surface-Charge Redistribution and Change of the Surface Morphology in Monolayer WS2. ACS Applied Nano Materials. 6. (9). p. 7404--7413. American Chemical Society

Ghosh, Abhishek, Malhotra, Nikita, Kaur, Narinder, Mehta, Manan, Kodan, Nisha(2023). Enhanced Photoelectrochemical Response of the ZnO/V2O5 Heterojunction Via Improved Visible-Light Absorption and Charge Carrier Separation. ACS Applied Energy Materials. ACS Publications

Ghosh, Abhishek, Kaur, Narinder, Bisht, Prashant, Singh, Rajendra, Mehta, Bodh Raj(2023). Extended Photoresponse in the UV--Visible Region with Multilayered Band Alignment in a In2S3-WO3-ZnO Nanostructure Heterojunction for Photoelectrochemical Water Splitting. ACS Applied Nano Materials. 6. (15). p. 14300--14307. American Chemical Society

Ghosh, Abhishek, Vishwakarma, Chandan Kumar, Bisht, Prashant, Kaur, Narinder, Ahmad, Mujeeb, Mehta, Bodh Raj(2023). Modulating thermoelectric properties in oxygen-passivated Sb2Te3 thin film through grain boundary engineering. arXiv preprint arXiv:2308.07906.

Ghosh, Abhishek, Kumari, Asha, Mehta, Bodh Raj, Sinha, Aloka(2023). Synergetic Enhancement of Seebeck Coefficients and Electrical Conductivity in Flexible Liquid Crystal Composites. ACS Sustainable Chemistry & Engineering. 11. (10). p. 4226--4236. American Chemical Society

Ghosh, Abhishek, Agarwal, Khushboo, Munoz, Sergio Gonzalez, Bisht, Prashant, Vishwakarma, Chandan K, Kaur, Narinder, Ahmad, Mujeeb, Vullum, Per Erik, Belle, Branson D, Singh, Rajendra, et al.(2023). Tuning thermoelectric properties of Sb $ _2 $ Te $ _3 $-AgSbTe $ _2 $ nanocomposite thin film--synergy of band engineering and heat transport modulation. arXiv preprint arXiv:2305.19217.

Abhishek Ghosh, Mujeeb Ahmad, Khushboo Agarwal, Sergio Gonzalez Munoz, Nisha Kodan, Oleg Victor Kolosov, Bodh Raj Mehta (2022). Engineering Interfacial Effects in Electron and Phonon Transport of Sb2Te3/MoS2 Multilayer for Thermoelectric ZT Above 2.0 . Advanced Functional Materials.

Abhishek Ghosh, Prashant Bisht, Arvind Kumar, Per Erik Vullum, Martin Fleissner Sunding, Branson D. Belle, Bodh Raj Mehta (2022). Tailoring the Vertical and Planar Growth of 2D WS2 Thin Films Using Pulsed Laser Deposition for Enhanced Gas Sensing Properties . ACS Applied Materials & Interfaces.

Ghosh, Abhishek, Gonzalez Munoz, Sergio, Agarwal, Khushboo, Ahmad, Mujeeb, Mehta, Bodh Raj, Kolosov, Oleg(2022). Anisotropic thermal transport using xSThM studies in 2D-3D heterostructures and composites. Graphene Week 2022.

Ghosh, Abhishek, Ahmad, Mujeeb, Agarwal, Khushboo, Munoz, Sergio Gonzalez, Kodan, Nisha, Kolosov, Oleg Victor, Mehta, Bodh Raj(2022). Engineering interfacial effects in electron and phonon transport of Sb2Te3/MoS2 multilayer for thermoelectric ZT above 2.0. Advanced Functional Materials. 32. (49). p. 2206384.

Ghosh, Abhishek, Kaur, Narinder, Bisht, Prashant, Kumar, Arvind, Kaushik, Vishakha, Kodan, Nisha, Singh, Rajendra, Mehta, BR(2022). Enhanced photodetection and a wider spectral range in the In 2 S 3--ZnO 2D--3D heterojunction: combined optical absorption and enhanced carrier separation at the type-II heterojunction. Journal of Materials Chemistry C. 10. (38). p. 14220--14231. Royal Society of Chemistry

Abhishek Ghosh, Narinder Kaur, Prashant Bisht, Arvind Kumar, Vishakha Kaushik, Nisha Kodan, Rajendra Singh, B. R. Mehta (2022). Enhanced photodetection and a wider spectral range in the In2S3–ZnO 2D–3D heterojunction: combined optical absorption and enhanced carrier separation at the type-II heterojunction . Journal of Materials Chemistry C.

Ghosh, Abhishek, Vishwakarma, Manoj, Batra, Yogita, Hadermann, Joke, Singh, Aditya, Mehta, BR(2022). Exploring the Role of Graphene Oxide as a Co-Catalyst in the CZTS Photocathodes for Improved Photoelectrochemical Properties. ACS Applied Energy Materials. 5. (6). p. 7538--7549. American Chemical Society

Ghosh, Abhishek, Kaur, Narinder, Ahmad, Mujeeb, Sharma, Dipika, Singh, Rajendra, Mehta, Bodh Raj(2022). Increased visible light absorption and charge separation in 2D--3D In2S3-ZnO heterojunctions for enhanced photoelectrochemical water splitting. Journal of Alloys and Compounds. 903. p. 164007. Elsevier

Ghosh, Abhishek, Bisht, Prashant, Kumar, Arvind, Vullum, Per Erik, Sunding, Martin Fleissner, Belle, Branson D, Mehta, Bodh Raj(2022). Tailoring the Vertical and Planar Growth of 2D WS2 Thin Films Using Pulsed Laser Deposition for Enhanced Gas Sensing Properties. ACS Applied Materials & Interfaces. 14. (32). p. 36789--36800. American Chemical Society

Ghosh, Abhishek, Kumar, Manoj, Rani, Sanju, Parmar, Rahul, Amati, Matteo, Gregoratti, Luca, Pathak, Saurabh, Kumar, Anil, Wang, Xu, Singh, Vidya Nand(2022). The ultra-high thermoelectric power factor in facile and scalable single-step thermal evaporation fabricated composite SnSe/Bi thin films. Journal of Materials Chemistry C. 10. (47). p. 18017--18024. Royal Society of Chemistry

Abhishek Ghosh, Mujeeb Ahmad, Prashant Bisht, Bodh Raj Mehta (2021). Modifying the Thermoelectric Transport of Sb₂Te₃ Thin Films via the Carrier Filtering Effect by Incorporating Size-Selected Gold Nanoparticles . ACS Applied Materials & Interfaces.

Ghosh, Abhishek, Ahmad, Mujeeb, Bisht, Prashant, Mehta, Bodh Raj(2021). Modifying the Thermoelectric Transport of Sb₂Te₃ Thin Films via the Carrier Filtering Effect by Incorporating Size-Selected Gold Nanoparticles.

Ghosh, Abhishek, Ahmad, Mujeeb, Bisht, Prashant, Mehta, Bodh Raj(2021). Modifying the thermoelectric transport of Sb2Te3 thin films via the carrier filtering effect by incorporating size-selected gold nanoparticles. ACS Applied Materials & Interfaces. 13. (11). p. 13226--13234. American Chemical Society

Ghosh, Abhishek, Ahmad, Mujeeb, Kodan, Nisha, Mehta, BR(2020). The nature of 2D: 3D SnS: Bi2Te3 interface and its effect on enhanced electrical and thermoelectric properties. Journal of Alloys and Compounds. 847. p. 156233. Elsevier

Ghosh, Abhishek, Kumari, Asmita, Bera, Mohit Lal, Pan, AK(2019). Swapping intraphoton entanglement to interphoton entanglement using linear optical devices. Physical Review A. 99. (3). p. 032118. APS

Ghosh, Abhishek, Singh, Rajendra, Aggarwal, Pallavi, Bisht, Prashant, Chang, Edward Yi, Mehta, Bodh RajGamma Ray Induced Surface Charge Redistribution and Change of Surface Morphology in Monolayer Ws2. Available at SSRN 4257115.

Ghosh, Abhishek, Kolosov, Oleg, Agarwal, Khushboo, Gonzalez-Munoz, Sergio, Ahmad, Mujeeb, Mehta, Bodh RajThermal Transport and Outstanding Thermoelectric Properties of 2D-3D Sb2Te3 Based Heterostructures with ZT> 2.0.