M Sridevi

Perovskite Device Fabrication and Characterizations: 

Perovskite solar-cell fabrication, device architecture optimization, and electrical characterization using light/dark J-V, C-V, C-f, and electrochemical impedance spectroscopy (EIS) 

Spectroscopy Techniques:  UV-Vis absorption, FTIR, and ultrafast transient absorption spectroscopy (UTAS) for investigating optical properties, charge-carrier dynamics, transport, and recombination processe 

Data Analysis and Modelling: OriginPro, Surface Xplorer for transient absorption data analysis, and LabVIEW for instrument control, measurement automation, and data acquisition    

Ph.D. in Physics | 2024-Present
CSIR-National Physical Laboratory (CSIR-NPL), New Delhi, India
Supervisor: Dr. Rajiv Kumar Singh, Scientist-F, CSIR-NPL

M.Sc. in Physics | 2019-2021
Jamia Millia Islamia, New Delhi, India
Distinction: First Division, Gold Medallist

B.Sc. in Physical Sciences | 2015-2018
Acharya Narendra Dev College, University of Delhi, New Delhi, India
Division: First Division

• CSIR-UGC NET JRF (Physics): Secured All India Rank 139.

• Gold Medallist, M.Sc. Physics - Jamia Millia Islamia, New Delhi 

• IIT JAM (Physics): Secured All India Rank 461.

1. Singh, A., Sridevi, M., Paul, D., Agarwal, A., Punia, N., Singh, R., & Laskar, I. (2026). Solvent Polarity as a Diagnostic for Vibronic/Vibrational Coherences Distinction in an Efficient TADF-TTA Switchable Emitter. Small Science.

2. Singh, A. K., Weatherill, L., Tiwari, A., Kaushik, B., Sridevi, M., Singh, R., ... & Laskar, I. R. (2026). Donor Relocation Enables Simultaneous Strong Absorption and Small Singlet‐Triplet Gap in 1, 8‐Naphthalimide Derivatives. Advanced Optical Materials, e71665.

3. Sridevi, M., Majhi, T., Jain, S., Dhapodkar, T., Gupta, V., Sengupta, S., & Singh, R. K. (2026). Dual-Functional Amino Acid Mediated Buried SAM Interfaces for Efficient Inverted Perovskite Solar Cells. ACS Applied Electronic Materials. 

4. Verma, A., Mudgal, R., Sridevi, M., Das, S., Singh, R. K., & Pal, S. K. (2025). Valley-specific charge carrier dynamics in GeSe probed by broadband transient absorption spectroscopy. Physica B: Condensed Matter, 418211. 

5. Kumar, P., Dua, S., Sridevi, M., Singh, K., Singh, R. K., Khanna, M. K., ... & Bhatt, G. (2025). Impact of sodium doping on the structural properties of CQDs. Scientific Reports, 15(1), 40725. 

6. Jain, S., Sridevi, M., Majhi, T., Tripathi, N. P., Saini, S. K., Kumari, A., ... & Singh, R. K. (2026). Probing Side-Chain Engineering for Modulating Exciton Dynamics in Non‑fullerene Acceptors. ACS omega, 11(1), 1125-1135. 

7. Majhi, T., Sridevi, M., Jain, S., & Singh, R. K. (2025). Double-Function Lewis-Base-Additive-Mediated Interfacial Configuration and Defect Mitigation in Perovskite Solar Cells. ACS Applied Energy Materials, 8(16), 12099-12109. 

8. Karmakar, S., Ash, S., Haque, S., Murugasenapathi, N. K., Sridevi, M., Mandal, I., ... & Rao, K. D. M. (2025). On-chip full-UV-band photodetectors enabled by hot hole extraction. ACS nano, 19(6), 6309-6319. 

9. Majhi, T., Sridevi, M., Jain, S., Kumar, M., & Singh, R. K. (2024). Revealing Defect Passivation and Charge Extraction by Ultrafast Spectroscopy in Perovskite Solar Cells through a Multifunctional Lewis Base Additive Approach. Solar RRL, 8(21), 2400589. 

10. Jain, S., Sridevi, M., Majhi, T., Tripathi, N. P., Sengupta, S., & Singh, R. K. (2024). Unraveling the Optoelectronic Exciton Dynamics of NDI (Naphthalene Diimide)-Based Nonfullerene Acceptor with Improved Band Alignment. ACS Applied Polymer Materials, 6(16), 9837-9847.

11. Tripathi, N. P., Sridevi, M., Singh, R. K., & Sengupta, S. (2024). Dithienopyrrolobenzothiadiazole and Naphthalimide-Based Donor–Acceptor Triads for Charge Transport and Photocatalytic Synthesis of Benzimidazoles. ACS Applied Optical Materials, 2(12), 2390-2400. 

12. Majhi, T., Sridevi, M., Jain, S., Srivastava, A., Kumar, M., Srivastava, S. K., & Singh, R. K. (2023). Insight into controlled surface passivation of PEDOT: PSS for defect density modulation and efficient charge transport for perovskite solar cells. ACS Applied Energy Materials, 6(17), 8695-8706.