Ajay Singh

Ajay Singh

Postdoctoral researcher

Department Département Physique et sciences des matériaux
Adresse postale Campus Limpertsberg, Université du Luxembourg
162 A, avenue de la Faïencerie
L-1511 Luxembourg
Bureau sur le campus BS 0.05B
Téléphone (+352) 46 66 44 9126

Ajay Singh joined the "Scanning Probe Microscopy Laboratory" research group, led by Prof. Alex Redinger, at the Department of Physics and Materials Science at the University of Luxembourg in July 2021. He is part of the FNR ATTRACT project "Surface and interface science on photovoltaic materials (SUNSPOT)".  His current research work focuses on developing high-efficiency, lead-free perovskite solar cells.

He did his Ph.D. at the Technical University of Munich, Germany, where he worked on investigating charge transport in organic-inorganic hybrid perovskite and dye-sensitized solar cells. He works on photovoltaic devices by using both experimental and numerical simulation methods. By using drift-diffusion and optoelectronic simulations, he also investigates other nanoelectronic devices, such as LEDs, transistors, nanowires, thermoelectric devices. 

His main objective is to combine the knowledge of device physics, nanoelectronics, and material science to develop renewable energy technologies, such as solar cells and thermoelectric devices.

More information is available on his personal webpage: https://sites.google.com/view/ajaysinghiitdelhitumunich/home 

Last updated on: vendredi 19 novembre 2021

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See detailDefect Formation and Healing at Grain Boundaries in Lead-Halide Perovskites
Kaiser, Waldemar; Hussain, Kashif; Singh, Ajay; Alothman, Asma A.; Meggiolaro, Daniele; Gagliardi, Alessio; Mosconi, Edoardo; De Angelis, Filippo

in Journal of Materials Chemistry A (2022)

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See detailInhomogeneities in lead halide perovskite absorbers revealed by quantitative Photoluminescence Imaging
Phirke, Himanshu; Singh, Ajay; Hieulle, Jeremy; Redinger, Alex; Krishna, Anurag

in Phirke, Himanshu; Singh, Ajay; Hieulle, Jeremy; Redinger, Alex; Krishna, Anurag (Eds.) Inhomogeneities in lead halide perovskite absorbers revealed by quantitative Photoluminescence Imaging (2022, April 20)

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See detailPhotoluminescence assessment of materials for solar cell absorbers
Siebentritt, Susanne; Rau, Uwe; Gharabeiki, Sevan; Weiss, Thomas; Prot, Aubin Jean-Claude Mireille; Wang, Taowen; Adeleye, Damilola; Drahem, Marwan Mohamed Mostafa; Singh, Ajay

in Faraday Discussions (2022)

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See detailCoevaporation Stabilizes Tin-Based Perovskites in a Single Sn-Oxidation State
Singh, Ajay; Hieulle, Jeremy; Ferreira Machado, Joana Andreia; Gharabeiki, Sevan; Zuo, Weiwei; Farooq, Muhammad Uzair; Phirke, Himanshu; Saliba, Michael; Redinger, Alex

in Nano Letters (2022)

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See detailSn4+-free, stable tin perovskite films for lead-free perovskite solar cells
Singh, Ajay; Hieulle, Jeremy; Phirke, Himanshu; Ferreira Machado, Joana Andreia; Gharabeiki, Sevan; Ahmad, Rukhsar; Siebentritt, Susanne; Redinger, Alex

in 2022 IEEE 49th Photovoltaics Specialists Conference (PVSC) (2022, November 14)

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See detailApplication of carotenoids in sustainable energy and green electronics
Singh, Ajay; Mukherjee, Trinetra

in Materials Advances (2022)

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See detailDevice simulation of all-perovskite four-terminal tandem solar cells: towards 33% efficiency
Singh, Ajay; Gagliardi, Alessio

in EPJ Photovoltaics (2021), 12(4),

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See detailRole of cation-mediated recombination in perovskite solar cells
Singh, Ajay; Kaiser, Waldemar; Gagliardi, Alessio

in Solar Energy Materials and Solar Cells (2021)

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See detailMethylamine Gas Treatment Affords Improving Semitransparency, Efficiency, and Stability of CH3NH3PbBr3-Based Perovskite Solar Cells
Singh, Ajay; Matteocci, Fabio; Zhu, Hongwei; Rossi, Daniele; Mejaouri, Salim; Cacovich, Stefania; Auf Der Maur, Matthias; Sauvage, Frédéric; Gagliardi, Alessio; Grätzel, Michael; Di Carlo, Aldo

in Solar RRL (2021)

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See detailTuning halide perovskite energy levels
Canil, Laura; Cramer, Tobias; Fraboni, Beatrice; Ricciarelli, Damiano; Meggiolaro, Daniele; Singh, Ajay; Liu, Maning; Rusu, Marin; Wolff, Christian M.; Phung, Nga; Wang, Qiong; Neher, Dieter; Unold, Thomas; Vivo, Paola; Gagliardi, Alessio; De Angelis, Filippo; Abate, Antonio

in Energy and Environmental Science (2020)

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See detailOptical frequency comb based on nonlinear spectral broadening of a phase modulated comb source driven by dual offset locked carriers
Nagarjun, K.P.; Vikram, B. S.; Prakash, Roopa; Singh, Ajay; Selvaraja, Shankar Kumar; Supradeepa, V. R.

in Optics Letters (2020)

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See detailGeneration of a multi-wavelength source spanning the entire C-band by nonlinear spectral broadening of dual-carrier electro-optic frequency combs

in OSA Continuum (2020)

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See detailInterface Electrostatics of Solid-State Dye-Sensitized Solar Cells: A Joint Drift-Diffusion and Density Functional Theory Study
Singh, Ajay; Radicchi, Eros; Fantacci, Simona; Nunzi, Francesca; De Angelis, Filippo; Gagliardi, Alessio

in The Journal of Physical Chemistry C (2019)

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See detailSimulation of ion migration in perovskite solar cells using a kinetic Monte Carlo/drift diffusion numerical model and analysis of the impact on device performance
Gagliardi, A.; Singh, Ajay; Kaiser, W.

in International Conference on Hybrid and Organic Photovoltaics Proceedings of International Conference on Hybrid and Organic Photovoltaics (HOPV18), Oral Presentation 099 (2018)

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See detailFrequency Offset Locked, Dual Carrier Excitation of Phase modulated, Electro-optic Frequency Combs for Bandwidth Scaling and Nonlinear Spectral Broadening
Nagarjun, K. P.; Vikram, B. S.; Prakash, Roopa; Suparna, S.; Singh, Ajay; Selvaraja, Shankar Kumar; Supradeepa, V. R.

in SPIE (2018, January 29)

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See detailSilicon-Based Inorganic–Organic Hybrid Nanocomposites for Optoelectronic Applications
Kanaujia, Pawan K.; Singh, Ajay; Prakash, G. Vijaya

in Energy Technology (2017)

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See detailSolar pumped Nd:YAG laser systems
Singh, Ajay; Gupta, Mayank; Mehta, Dalip Singh

in Tezpur University (2016, November)

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