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Hire Dr. Srijon G.

India

USD 40 /hr

Freelance physical chemistry researcher and data analyst| Manuscript writing and editing| 7+ years of experience

Profile Summary

I provide help with manuscript writing and editing (content and language). Help regarding data analysis of research projects related to spectroscopy and characterization of small molecules and nanomaterials is also provided. My research career is substantiated by over 25 publications in Q1 journals, besides I have provided editing services to over 50 scientific manuscripts as a freelance editor. Coming to my career, I am basically an ultrafast spectroscopist who has several years of research experience in the synthesis, characterization, and application of nanomaterials (organic aggregates, carbon dots, polymer nanoparticles, perovskites, metal nanoclusters, semiconducting quantum dots, and nanoplatelets) with the aim of solar energy harvesting. My research experience includes the elucidation of photoinduced dynamics of these novel nanomaterials using pump-probe ultrafast spectroscopic techniques, mainly transient absorption spectroscopy, and fluorescence upconversion spectroscopy. I use various methods to analyze the time-resolved spectroscopic data, for example, global and target analysis. Besides, I also have hands-on experience with other techniques like UV, PL, TCSPC, NMR, IR, SEM, TEM, Raman, and AFM. I can perform DFT calculations for any system and numerical simulations of solar cell devices independently. Currently, I am working on the excited state relaxation processes of biologically important molecules, such as different nucleobases.

Subject Matter Expertise

• ★ Physical Chemistry
• ★ Carbon Materials
• ★ Photochemistry
• ☆ Materials Science & Engineering
• ☆ Nanotechnology & Nanomaterials
• ☆ Biopolymers
• ☆ Analytical Chemistry
• ☆ Spectrophotometry
• ☆ Renewable Energy
• ☆ Solar Energy
• ☆ Optics
• ☆ Lasers & Photonics
• ☆ Photomedicine/Phototherapy

Services

• Writing
• Research
• Consulting
• Data & AI
• Product Development

Writing Technical Writing, Creative Writing, General Proofreading & Editing

Research Scientific and Technical Research, Secondary Data Collection

Consulting Scientific and Technical Consulting

Data & AI Statistical Analysis

Product Development Concept Development, Device Fabrication

Work Experience

Post-doctoral Researcher

Kyoto University

June 2023 - Present

Senior Research Fellow

Indian Association for the Cultivation of Science

June 2020 - June 2023

Freelance editor

Sci-Edit Publication

November 2022 - May 2023

Junior Research Fellow

Indian Association for the Cultivation of Science

June 2018 - May 2020

Education

Ph. D

Indian Association for the Cultivation of Science

June 2018 - May 2023

M.Sc.

Indian Association for the Cultivation of Science

June 2016 - May 2018

B.Sc

Presidency University

June 2013 - May 2016

Certifications

• National Eligibility Test for PhD

  CSIR

  June 2017 - Present

Publications

JOURNAL ARTICLE

Srijon Ghosh, Antika Das, Kritiman Marjit, Debarati Ghosh, Amitava Patra (2023). Slowing Down the Hot Carrier Relaxation Dynamics of CsPbX3 Nanocrystals by the Surface Passivation Strategy . The Journal of Physical Chemistry C.

Srijon Ghosh, Kritiman Marjit, Goutam Ghosh, Debarati Ghosh, Anusri Medda, Amitava Patra (2023). Electron Transfer Dynamics from CsPbBr3 Nanocrystals to Au144 Clusters . ACS Physical Chemistry Au.

Srijon Ghosh, Kritiman Marjit, Goutam Ghosh, Debarati Ghosh, Amitava Patra (2023). Ultrafast Photoinduced Dynamics of Quaterthiophene-Squaraine Hybrid Aggregates . The Journal of Physical Chemistry C.

Srijon Ghosh, Goutam Ghosh, Kritiman Marjit, Amitava Patra (2023). Hot Carrier Cooling and Biexciton Dynamics of Anisotropic-Shaped CsPbBr3 Perovskite Nanocrystals . The Journal of Physical Chemistry C.

Srijon Ghosh, Sarita Kolay, Subarna Maity, Sikta Chakraborty, Amitava Patra (2023). Electronegativity of the Substituent on Surface Motifs Influences the Ultrafast Relaxation Dynamics of Ag44(SR)304– Nanoclusters . The Journal of Physical Chemistry C.

Srijon Ghosh, Soubhik Ghosh, Anusri Medda, Amitava Patra (2022). Hole Transfer Dynamics of 2D CdSeS Alloy Nanoplatelets for Photon-to-Current Conversion . The Journal of Physical Chemistry C.

Ultrafast Relaxation Dynamics of Conjugated Polymer Nanoparticles by Tuning Their Interchain Interactions <head> <META HTTP-EQUIV="Refresh" CONTENT="0;URL=/servlet/useragent"> </head> . The Journal of Physical Chemistry C.

Srijon Ghosh, Debarati Ghosh, Kritiman Marjit, Goutam Ghosh, Amitava Patra(2022). Charge Transfer Dynamics of Two-Dimensional Ruddlesden Popper Perovskite in the Presence of Short-Chain Aromatic Thiol Ligands . The Journal of Physical Chemistry C. 126. (34). p. 14590--14597. American Chemical Society ({ACS})

Srijon Ghosh, Goutam Ghosh, Kritiman Marjit, Debarati Ghosh, Amitava Patra (2022). Evidence of Hot Charge Carrier Transfer in Hybrid CsPbBr3/Functionalized Graphene . ChemNanoMat.

Srijon Ghosh, Kritiman Marjit, Goutam Ghosh, Raju K. Biswas, Swapan K. Pati, Amitava Patra (2022). Modulating the Carrier Relaxation Dynamics in Heterovalently (Bi3+) Doped CsPbBr3 Nanocrystals . The Journal of Physical Chemistry Letters.

Srijon Ghosh, Subarna Maity, Sarita Kolay, Sikta Chakraborty, Dipankar Bain, Amitava Patra (2022). Unraveling the Effect of Single Atom Doping on the Carrier Relaxation Dynamics of MAg24n– Nanoclusters . The Journal of Physical Chemistry Letters.

Srijon Ghosh, Anusri Medda, Avisek Dutta, Sumanta Sain, Indranil Sarkar, Amitava Patra(2022). Impacts of Dopant and Post-Synthetic Heat-Treatment on Carrier Relaxation of Cu2+-Doped CdSe Nanoplatelets . The Journal of Physical Chemistry C. American Chemical Society ({ACS})

Srijon Ghosh, Goutam Ghosh, Raju K Biswas, Kritiman Marjit, Arnab Ghosh, Swapan K Pati, Amitava Patra (2022). Impacts of CsPbBr3/PbSe Heterostructures on Carrier Cooling Dynamics at Low Carrier Density . Advanced Optical Materials.

Srijon Ghosh, Bikash Jana, Avisek Dutta, Alexander V. Baranov, Anatoly V. Fedorov, Amitava Patra (2022). Investigation of carrier dynamics of QDs using kinetic model and ultrafast spectroscopy . Optical Materials: X.

Srijon Ghosh, Arnab Ghosh, Goutam Ghosh, Kritiman Marjit, Amitava Patra(2021). Deciphering the Relaxation Mechanism of Red-Emitting Carbon Dots Using Ultrafast Spectroscopy and Global Target Analysis . The Journal of Physical Chemistry Letters. p. 8080--8087. American Chemical Society ({ACS})

Srijon Ghosh, Kritiman Marjit, Goutam Ghosh, Sumanta Sain, Arnab Ghosh, Amitava Patra(2021). Structural Analysis and Carrier Relaxation Dynamics of 2D CsPbBr3 Nanoplatelets . The Journal of Physical Chemistry C. 125. (22). p. 12214--12223. American Chemical Society ({ACS})

Srijon Ghosh, Bikash Jana, Arnab Ghosh, Dirk M. Guldi, Amitava Patra(2021). The Impact of Aggregation of Quaterthiophenes on the Excited State Dynamics . The Journal of Physical Chemistry Letters. 12. (13). p. 3424--3430. American Chemical Society ({ACS})

Srijon Ghosh, Goutam Ghosh, Kritiman Marjit, Arnab Ghosh, Raihan Ahammed, Abir De Sarkar, Amitava Patra(2021). Hot Hole Cooling and Transfer Dynamics from Lead Halide Perovskite Nanocrystals Using Porphyrin Molecules . The Journal of Physical Chemistry C. 125. (10). p. 5859--5869. American Chemical Society ({ACS})

Srijon Ghosh, Arnab Ghosh, Goutam Ghosh, Amitava Patra(2021). Implications of relaxation dynamics of collapsed conjugated polymeric nanoparticles for light-harvesting applications . Physical Chemistry Chemical Physics. 23. (27). p. 14549--14563. Royal Society of Chemistry ({RSC})

Srijon Ghosh, Arnab Ghosh, Goutam Ghosh, Bikash Jana, Amitava Patra(2020). Revealing Complex Relaxation Processes of Collapsed Conjugated Polymer Nanoparticles in the Presence of Different Shapes of Gold Nanoparticles Using Global and Target Analysis . The Journal of Physical Chemistry C. 124. (48). p. 26165--26173. American Chemical Society ({ACS})

Srijon Ghosh, Goutam Ghosh, Avisek Dutta, Arnab Ghosh, Amitava Patra(2020). Ultrafast Carrier Dynamics in 2D CdSe Nanoplatelets–CsPbX3 Composites: Influence of the Halide Composition . The Journal of Physical Chemistry C. 124. (18). p. 10252--10260. American Chemical Society ({ACS})

(2020). Global and Target Analysis of Relaxation Processes of Collapsed State of P3HT Polymer Nanoparticles . Physical Chemistry Chemical Physics.

Srijon Ghosh, Arnab Ghosh, Goutam Ghosh, Bikash Jana, Amitava Patra(2020). Global and target analysis of relaxation processes of the collapsed state of P3HT polymer nanoparticles . Physical Chemistry Chemical Physics. Royal Society of Chemistry ({RSC})

Ghosh, Arnab and Jana, Bikash and Kumar, Ajeet and Ghosh, Srijon and Patra, Amitava(2020). Manipulation of the exciton diffusion length of conjugated polymer nanoparticles: role of electron and hole scavenger molecules. Bulletin of Materials Science. 43. (1). p. 1--8. Springer

Investigation of Morphology-Controlled Ultrafast Relaxation Processes of Aggregated Porphyrin @article{https://doi.org/10.1002/cphc.202000482, author= {Mondal, Bodhisatwa and Bera, Rajesh and Ghosh, Srijon and Nayak, Sandip K. and Patra, Amitava}, title= {Investigation of Morphology-Controlled Ultrafast Relaxation Processes of Aggregated Porphyrin}, journal= {ChemPhysChem}, volume= {21}, number= {19}, pages= {2196-2205}, keywords= {decay dynamics, femtosecond transient absorption spectroscopy, porphyrins, rods and flakes, self-assemblies}, doi= {https://doi.org/10.1002/cphc.202000482}, url= {https://chemistry-europe.onlinelibrary.wiley.com/doi/abs/10.1002/cphc.202000482}, eprint= {https://chemistry-europe.onlinelibrary.wiley.com/doi/pdf/10.1002/cphc.202000482}, abstract= {Abstract Here, we have synthesized rod and flake shaped morphology of porphyrin aggregates from 5, 10, 15, 20-tetra (4-n-octyloxyphenyl) porphyrin (4-opTPP) molecule which are evident from scanning electron microscopy (SEM). The formation of J-type aggregation is evident from steady state and time-resolved fluorescence spectroscopic studies. Ultrafast transient absorption spectroscopic studies reveal that the excited state lifetime is controlled by the morphology and the time constant for S1→S0 relaxation changes from 3.05 ps to 744 ps with changing the shape from rod to flake, respectively. In spite of similar exciton coupling energy in both the aggregates, the flake shaped aggregates undergo a faster exciton relaxation process and the non-radiative relaxation channels are found to depend on the shape of aggregates. The fundamental understanding of morphology controlled ultrafast relaxation processes of aggregated porphyrin is important for designing efficient light harvesting devices.}, year= {2020}} . ChemPhysChem.

(2019). Ultrafast Relaxation Processes of Conjugated Polymer Nanoparticles in the Presence of Au Nanoparticles . Chemistry – An Asian Journal.

Srijon Ghosh, Arnab Ghosh, Bikash Jana, Amitava Patra(2019). Ultrafast Energy Flow Dynamics in a Conjugated Polymer-Based Host–Guest Light-Harvesting System . The Journal of Physical Chemistry C. 123. (43). p. 26727--26734. American Chemical Society ({ACS})

Saha, Prosenjit and Pyne, Dinesh Kumar and Ghosh, Srijon and Banerjee, Soumadip and Das, Sourav and Ghosh, Soumen and Dutta, Partha and Halder, Arnab(2018). Effect of an anionic surfactant (SDS) on the photoluminescence of graphene oxide (GO) in acidic and alkaline medium . RSC Adv. 8. p. 584-595. The Royal Society of Chemistry

(2018). Effect of an anionic surfactant (SDS) on the photoluminescence of graphene oxide (GO) in acidic and alkaline medium . RSC Advances.

(2016). Engineering the Excited-State Dynamics of 3-Aminoquinoline by Chemical Modification and Temperature Variation . The Journal of Physical Chemistry B.