Publications All
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Phosphine oxide based semiconducting small molecule as an additive and an electron transport layer enables efficient and stable perovskite light-emitting devices
Mukherjee, S., Panigrahi, A., Lin, Y.-H., Perumal, A.
Understanding the charge transfer mechanism in CsPbBr3 nanocrystals and nitrogen-doped carbon quantum dot heterostructures: effect of nanocrystal encapsulation
Ray, S., Sahoo, M.R., Mukherjee, S., Perumal, A., Nayak, S.K., Bhaumik, S.
Effect of the cyano group on colour-tunability of aryl-substituted buta-1,3-diene based solid-state emissive copolymers
Pal, P., Datta, A., Mukherjee, S., Perumal, A., Malik, S.
Checkout Publication Title: Click here
Sa, S., Sahoo, A., Mukherjee, S., Perumal, A., Venkatasubbaiah, K.
Mild donor-?-mild acceptor (mD-?-mA) benzimidazole-based deep blue fluorophores with hybridized local and charge transfer (HLCT) excited states for OLEDs
Devesing Girase, J., Mukherjee, S., Chakrabarti, T., Patel, S., Perumal, A., Vaidyanathan, S.
Efficient deep blue (CIE ?0.08) fluorophore-based benzimidazole with hybridized local and charge transfer (HLCT) excited state for OLEDs
Devesing Girase, J., Tagare, J., Mukherjee, S., Chakrabrati, T., Perumal, A., Vaidyanathan, S.
Efficient Perovskite Light Emitting Diodes Enabled by Mixed Ruddlesden-Popper (RP) Perovskite-Perovskite Planar Heterojunction between Hole Transport and Emission Layers
Mukherjee, S., Panigrahi, A., Nayak, S., Perumal, A.
Efficient Triplet Harvesting via Hot Exciton Utilization in Solution Processed OLEDs Employing Tetraphenyl Buta-1,3-Diene Based AIE Emitters
Datta, A., Mukherjee, S., Pal, P., Pal, A.K., Perumal, A., Datta, A., Malik, S.
Academic Background
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Ph.D. : Institute for Applied PhotoPhysics (IAPP), Technische Universitaet Dresden (TUD), Germany, Advisor: Prof Karl Leo, 2012
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MSc. : University of Stuttgart/Max Planck Stuttgart, Germany, 2007
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MSc. : Karnatak University Dharwad, India, 2004
Professional Experience
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Assistant Professor: Department of Physics, Indian Institute of Science Education and Research, Berhampur (2017 - Present)
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Post-Doc. : Energy Research Institute @ NTU (ERIAN), Nanyang Technological University (NTU), Singapore (2016)
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Post-Doc. : Department of Physics (EXSS), Centre for Plastic Electronics, Imperial College London, UK (2015)
Awards and Memberships
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Early Career Research award-2018 DST-SERB, Govt. of India
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DST Solar Challenge Award and Grant-2021 DST, Govt. of India (Co-PI)
Research Interests
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Emerging photonic materials: Soft semiconductors, multilayered thin films, functional devices
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Photonics and Photophysics of emerging photonic materials
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Photonic and Opto-electronic devices: Perovskite Light emitting devices, Organic LEDs and Solar energy conversion through photovoltaics
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Flexible, stretchable, and transparent electrodes, functional materials and devices
Research Group
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Tanwistha Chakrabarti (since July, 2018): M.Sc. in Physics from Presidency University, Kolkata (DST INSPIRE FELLOW)
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Susmita Mukherjee (since July, 2018): M.Sc. in Physics from University of Burdwan
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Ashutosh Panigrahy (Since May 2024): BS-MS IISER Berhampur (DST INSPIRE FELLOW)
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BS-MS Thesis Laishram Librada Singh (Since May 2024)
About me
Dr. Ajay Perumal is an Assistant Professor at the Department of Physics at the Indian institute of science education and research (IISER) in Berhampur, Odisha, India. In his research career, he has focused on a wide variety of novel materials (metal oxides, organic semiconductors, polymers, quantum dots, perovskites) and novel nano-structures produced through a range of fabrication procedures. He has focused primarily on the electronic and optical properties of novel semiconductor materials and nano-structures and their implementation in optoelectronic devices. His primary research interests are light-emitting devices and photovoltaics. His research work has been published in many high-impact factor journals such as Energy and Environmental Science, Advanced Materials, Advanced Functional Materials, and Advanced Energy Materials, etc.
Biography
Dr. Ajay Perumal obtained his M.Sc from University of Stuttgart/ Max Planck Stuttgart, Germany (2007) and Karnatak University Dharwad, India (2004). He pursued his Ph.D. at the Technical University of Dresden under the guidance of Prof Karl Leo (2012). He went on to do postdoctoral work at Imperial College London (2012-2015) under the guidance of Prof Donal Bradley and later second postdoctoral at NTU Singapore @ Luminous! and Energy research institute (ERIAN) under the guidance of Prof. Subodh Mhaisalkar and Prof Hilmi Volkan Demir.
Research Projects
1. Project Title: Perovskite nanocrystals, low dimensional perovskite analogues and their application for highly efficient multilayer solution processed electroluminescent devices
Funding Agency: SERB-ECRA/2017/001879
Amount: 52.76 LAKHS
Period: 2018-2022
Status: Completed
2. Project Title: Highly efficient solution-processed exciplex OLEDs achieved through advanced light extraction techniques
Funding Agency: SERB- CRG/2022/009035
Amount: 58 LAKHS
Period: 2023-2026
Statis: Ongoing
3. Project Title: Advancement towards Stable and Highly Efficient Solar cell based on Halide perovskite (ASHESH)
Co-PI
Funding Agency: DST/ETC/CASE/RES/2023/01
DST-‘Challenge Awards 2021 on Solar Energy’
Period: 2023-2026
Amount: 1.82 Crore for IISER Berhampur
(6 Crore in total for Consortium of researchers from TIFR-Hyderabad, IIT Mumbai, IISER Berhampur, HRI Allahabad
Status: Ongoing
Key Publications
Efficient, Stable, and Reproducible Inverted p–i–n Perovskite Solar Cells with a Dopant-Free Spiro-TTB Hole Transport Layer Modified with a PFN-P1 Interfacial Layer ACS Applied Energy Materials 2024
Phosphine oxide based semiconducting small molecule as an additive and an electron transport layer enables efficient and stable perovskite light-emitting devices S Mukherjee, A Panigrahi, YH Lin, A Perumal, Journal of Materials Chemistry C 2024, 12, 3365-337Finding the charge transfer mechanism in CsPbBr 3 nanocrystals and nitrogen-doped carbon quantum dot heterostructures: effect of nanocrystal encapsulation S Ray, MR Sahoo, S Mukherjee, A Perumal, SK Nayak, S Bhaumik RSC advances 2023, 13 (50), 35551-35561
Self assembled hierarchical nanostructured perovskites enable highly efficient LEDs via an energy cascade, XY Chin, A Perumal, A Bruno, N Yantara, SA Veldhuis, L Martínez-Sarti, B Chandran, V Chirvony, A S-Zee Lo, J So, C Soci, M Grätzel, H J Bolink, N Mathews, S G Mhaisalkar Energy & Environmental Science 2018, 11 (7), 1770-1778
Ajay Perumal, Hendrik Faber, Nir Yaacobi-Gross, Pichaya Pattanasattayavong, Paul Stavrinou, Thomas Anthopoulos and Donal D.C. Bradley "Low voltage, high performance solution processed phosphorescent green organic light emitting device with transparent inorganic hole injection and transport layer" Advanced Materials 2015, 27 (1), 93-100
Contact Details
Full Name
Ajay Perumal
Email
ajay@iiserbpr.ac.in
Address
IISER Berhampur
Personal Website
https://ajayperumal.wixsite.com/fnol