After Joining IIT BBS

22. Palas Roy, Andy S. Sardjan, Wesley R. Browne, Ben. L. Feringa* and Stephen R. Meech*; “Excited State Dynamics in Unidirectional Photochemical Molecular Motors ” J. Am. Chem. Soc. (2024) (JUST ACCEPTED) DOI: 10.1021/jacs.4c01019 

21. Palas Roy, ≠ Andy S. Sardjan,≠ Wojciech Danowski, Wesley R. Browne, Ben. L. Feringa* and Stephen R. Meech*; “Control of Photoconversion Yield in Unidirectional Photomolecular Motors by Push-Pull Substituents” J. Am. Chem. Soc. 145, 36, 19849 (2023) DOI: 10.1021/jacs.3c06070 (≠equal contribution)

20. Palas Roy, Wesley R. Browne, Ben. L. Feringa* and Stephen R. Meech*; “Ultrafast Motion in a Third Generation Photomolecular Motor” Nat. Commun. 14. 1253 (2023) DOI: 10.1038/s41467-023-36777-6 (Editors’ Highlight)

19. Kiri Addison, Palas Roy, Giovanni Bressan, Karolina Skudaite, Josh Robb, Philip B. C. Page, Eleanor K. Ashworth, James N. Bull and Stephen R. Meech*; “Photophysics of the Red-form Kaede Chromophore” Chemical Science, 14, 3763 (2023) DOI: 10.1039/D3SC00368J

Before Joining IITBBS

18. Palas Roy, Faisal Al-Kahtani, Andrew N. Cammidge, and Stephen R. Meech*; “Solvent Tuning Excited State Structural Dynamics in a Novel Bianthryl”, J. Phys. Chem. Lett. 14, 253 (2023) DOI: 10.1021/acs.jpclett.2c03469

17. Palas Roy, Gokul T. Anandan, Nagaraj Nayak, Anil Kumar, and Jyotishman Dasgupta*; “Raman Snapshots of Side-Chain Dependent Polaron Dynamics in PolyThiophene Films” J. Phys. Chem. B 127, 567 (2023). DOI: 10.1021/acs.jpcb.2c06185

16. Pragya Verma, Mariusz Tasior, Palas Roy, Stephen R. Meech*, Daniel T. Gryko, and Eric Vauthey*; “Excited-state Symmetry Breaking in Quadrupolar Pull-push-pull Molecules: Dicyanovinyl vs. Cyanophenyl Acceptors” Phys. Chem. Chem. Phys. (2023 Advance Article) DOI: 10.1039/D3CP02810K

15. Giovanni Bressan, Michael Jirasek, Palas Roy, Harry Anderson, Stephen R. Meech* and Ismael Heisler*;“Population and Coherence Dynamics in Large Conjugated Porphyrin Nanorings”, Chem. Sci. 13, 9624 (2022). DOI: 10.1039/D2SC01971J

14. Palas Roy, Andy S. Sardjan, Arjen Cnossen, Wesley R. Browne, Ben. L. Feringa* and Stephen R. Meech*; “Excited State Structure Correlates with Efficient Photoconversion in Unidirectional Motors” J. Phys. Chem. Lett. 12, 3367 (2021). DOI: 10.1021/acs.jpclett.1c00710

13. Palas Roy, Giovanni Bressan, Jacob Gretton, Andrew N. Cammidge, and Stephen R. Meech*; “Ultrafast Excimer Formation and Solvent Controlled Symmetry Breaking Charge Separation in the Excitonically Coupled Subphthalocyanine Dimer” Angew. Chem. Int. Ed. 60, 10568 (2021). DOI: 10.1002/anie.202101572

12. Palas Roy, Andy S. Sardjan, Wojciech Danowski, Wesley R. Browne, Ben. L. Feringa* and Stephen R. Meech*; “Photophysics of First-Generation Photomolecular Motors: Resolving Roles of Temperature, Friction, and Medium Polarity” J. Phys. Chem. A. 125, 1711 (2021). DOI: 10.1021/acs.jpca.0c11050

11. Palas Roy* “Hot-carriers in Organic Photovoltaics” Pure Appl. Chem. 93, 223 (2021). DOI: 10.1515/pac-2020-1001 (Invited article)

10. Dale Green, Palas Roy, Christopher R. Hall, James N. Iuliano, Garth A. Jones, Andras Lukacs, Peter J. Tonge and Stephen R. Meech*; “Excited State Resonance Raman of Flavin Mononucleotide: Comparison of Theory and Experiment” J. Phys. Chem. A. 125, 6171 (2021). DOI: 10.1021/acs.jpca.1c04063

9. Palas Roy*, and Jyotishman Dasgupta; “Temporal Probing of Excitons in Organic Semiconductors” Pure Appl. Chem. 92, 707 (2020). DOI:10.1515/pac-2018-1230 (Invited article)

8. Andy S. Sardjan, Palas Roy, Giovanni Bressan, Laura Comprido, Wesley R. Browne, Ben. L. Feringa* and Stephen R. Meech*; “Ultrafast Excited State Dynamics in a First Generation Photomolecular Motor” ChemPhysChem 21, 594 (2020). DOI: 10.1002/cphc.201901179 (Journal Cover Feature)

7. Shawn Irgen-Gioro, Palas Roy, Suyog Padgaonkar, and Elad Harel*; “Low Energy Excited State Vibrations Revealed in Conjugated Co-Polymer PCDTBT” J. Chem. Phys. 152, 044201 (2020). DOI:10.1063/1.5132299

6. KC Krishnapriya≠, Palas Roy≠, Ulrike Salzner, Jyotishman Dasgupta* and Satish Patil*; “Spin Density Encodes Intramolecular Singlet Fission in Pentacene Dimers” Nat. Commun. 10, 1  (2019). DOI: 10.1038/s41467-018-07736-3 (≠equal contribution)

5. Palas Roy, Shreetama Karmakar, and Jyotishman Dasgupta*; “Femtosecond Stimulated Raman Spectroscopy” Book Chapter-9 in “Molecular and Laser Spectroscopy: Advances and Applications” by Prof. V. P. Gupta, Elsevier 193-215 (2018). DOI:10.1016/B978-0-12-849883-5.00009-7

4. Palas Roy, Ajay Jha, Vineeth B. Yasarapudi, Thulasi Ram, Boregowda Puttaraju, Satish Patil and Jyotishman Dasgupta*; “Ultrafast bridge planarization in donor-π-acceptor copolymers drives intramolecular charge transfer” Nat. Commun. 8, 1 (2017). DOI: 10.1038/s41467-017-01928-z

3. Melby Johny, K. Vijayalakshmi, Ankita Das, Palas Roy, Aseem Mishra and Jyotishman Dasgupta*; “Modulating Phe-Phe dipeptide aggregation landscape by covalent attachment of an Azobenzene photoswitch” Chem. Commun. 53, 9348 (2017). DOI: 10.1039/C7CC04106C

2. Tushita Mukhopadhyay, Boregowda Puttaraju, Palas Roy, Jyotishman Dasgupta, Andreas Meyer, Alexander Rudnick, Steffen Tscheuschner, Frank-Julian Kahle, Anna Köhler, and Satish Patil*; “Facile Synthesis and Chain-length Dependent Optical and Structural Properties of Diketopyrrolopyrrole-based Oligomers” Chem. Eur. J. 23, 13718 (2017). DOI: 10.1002/chem.201702131

1. Palas Roy, Ajay Jha, and Jyotishman Dasgupta*; “Photoinduced Charge Generation Rates in Soluble P3HT:PCBM Nano-aggregates Predict the Solvent-dependent Film Morphology” Nanoscale 8, 2768 (2016). DOI: 10.1039/C5NR06445G