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Perovskite crystallisation graphic

Dr. Nakita K Noel

Associate Professor

Research theme

  • Photovoltaics and nanoscience

Sub department

  • Condensed Matter Physics

Research groups

  • Novel Energy Materials and Advanced Characterisation
  • Advanced Device Concepts for Next-Generation Photovoltaics
nakita.noel@physics.ox.ac.uk
Telephone: 01865 (2)72401
Robert Hooke Building, room G20
  • About
  • Publications

Bandgap-universal passivation enables stable perovskite solar cells with low photovoltage loss

Science American Association for the Advancement of Science 384:6697 (2024) 767-775

Authors:

Yen-Hung Lin, Vikram, Fengning Yang, Xue-Li Cao, Akash Dasgupta, Robert DJ Oliver, Aleksander M Ulatowski, Melissa M McCarthy, Xinyi Shen, Qimu Yuan, M Greyson Christoforo, Fion Sze Yan Yeung, Michael B Johnston, Nakita K Noel, Laura M Herz, M Saiful Islam, Henry J Snaith

Abstract:

The efficiency and longevity of metal-halide perovskite solar cells are typically dictated by nonradiative defect-mediated charge recombination. In this work, we demonstrate a vapor-based amino-silane passivation that reduces photovoltage deficits to around 100 millivolts (>90% of the thermodynamic limit) in perovskite solar cells of bandgaps between 1.6 and 1.8 electron volts, which is crucial for tandem applications. A primary-, secondary-, or tertiary-amino–silane alone negatively or barely affected perovskite crystallinity and charge transport, but amino-silanes that incorporate primary and secondary amines yield up to a 60-fold increase in photoluminescence quantum yield and preserve long-range conduction. Amino-silane–treated devices retained 95% power conversion efficiency for more than 1500 hours under full-spectrum sunlight at 85°C and open-circuit conditions in ambient air with a relative humidity of 50 to 60%.

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Breaking efficiency limits Chair introduction - Nakita Noel

Fundacio Scito (2024)
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The effects of solution processing methods on halide perovskite nanostructure

BIO Web of Conferences EDP Sciences 129 (2024) 24032

Authors:

Alexandra Sheader, Ryley Ratnasingham, Nakita Noel
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Correction to “A Templating Approach to Controlling the Growth of Coevaporated Halide Perovskites”

ACS Energy Letters American Chemical Society (ACS) 8:11 (2023) 4714-4715

Authors:

Siyu Yan, Jay B Patel, Jae Eun Lee, Karim A Elmestekawy, Sinclair R Ratnasingham, Qimu Yuan, Laura M Herz, Nakita K Noel, Michael B Johnston
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Roadmap on Photovoltaic Absorber Materials for Sustainable Energy Conversion

(2023)

Authors:

James C Blakesley, Ruy S Bonilla, Marina Freitag, Alex M Ganose, Nicola Gasparini, Pascal Kaienburg, George Koutsourakis, Jonathan D Major, Jenny Nelson, Nakita K Noel, Bart Roose, Jae Sung Yun, Simon Aliwell, Pietro P Altermatt, Tayebeh Ameri, Virgil Andrei, Ardalan Armin, Diego Bagnis, Jenny Baker, Hamish Beath, Mathieu Bellanger, Philippe Berrouard, Jochen Blumberger, Stuart A Boden, Hugo Bronstein, Matthew J Carnie, Chris Case, Fernando A Castro, Yi-Ming Chang, Elmer Chao, Tracey M Clarke, Graeme Cooke, Pablo Docampo, Ken Durose, James R Durrant, Marina R Filip, Richard H Friend, Jarvist M Frost, Elizabeth A Gibson, Alexander J Gillett, Pooja Goddard, Severin N Habisreutinger, Martin Heeney, Arthur D Hendsbee, Louise C Hirst, M Saiful Islam, KDG Imalka Jayawardena, Michael B Johnston, Matthias Kauer, Jeff Kettle, Ji-Seon Kim, Dan Lamb, David Lidzey, Jihoo Lim, Roderick MacKenzie, Nigel Mason, Iain McCulloch, Keith P McKenna, Sebastian B Meier, Paul Meredith, Graham Morse, John D Murphy, Chris Nicklin, Paloma Ortega-Arriaga, Thomas Osterberg, Jay B Patel, Anthony Peaker, Moritz Riede, Martyn Rush, James W Ryan, David O Scanlon, Peter J Skabara, Franky So, Henry J Snaith, Ludmilla Steier, Jarla Thiesbrummel, Alessandro Troisi, Craig Underwood, Karsten Walzer, Trystan Watson, J Michael Walls, Aron Walsh, Lucy D Whalley, Benedict Winchester, Samuel D Stranks, Robert LZ Hoye
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