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Welcome

Welcome to our group’s webpage!

Scroll down to explore the research we conduct on the fundamental understanding of photoactive materials and their application in devices for harnessing and storing solar energy. Through our work, we strive to contribute to the global effort of transitioning towards affordable and sustainable energy generation and storage.

News


March 2025

Our paper, titled "Enhanced solar water oxidation and unassisted water splitting using graphite-protected bulk heterojunction organic photoactive layers" has been published in Nature Energy.

An associated Nature Energy Research Briefing is also available, providing a concise summary of our paper’s main findings.


February 2025

Liza Lutter has started her PhD in the group!

She joined us after earning her MSc in Nanotechnology from the University of Central Florida, where she conducted research in the Nanotechnology Lab, focusing on atomic force microscopy. A former rower, Liza still enjoys sports in her free time, particularly running and swimming, and never says no to a snowboarding trip with friends or family.

Liza Lutter

December 2024

The new glovebox has arrived and is now ready to be used for the fabrication of perovskite solar cells and photoelectrodes.

Glovebox-1
Glovebox-2

Profile from asset

Dr Matyas Daboczi is a Marie Skłodowska-Curie Research Fellow in the Nanostructures Department at the HUN-REN Centre for Energy Research, working on solution-processable materials for solar energy conversion devices (solar cells, solar hydrogen generation and biomass oxidation).

Matyas is also a Visiting Researcher at Imperial College London investigating materials for solar energy conversion in the Eslava Group: Applied Energy Materials.

With his PhD research under the supervision of Prof Ji-Seon Kim in the Physics Department at Imperial College London he has contributed to the understanding of charge carrier recombination losses in perovskite-based solar cells giving important guidelines to increase device efficiencies closer to their theoretical limit.

After his PhD Matyas has also gained some useful experience in publishing, working as a Scientific Editor at Joule, a high impact sustainable energy journal.

Outside the lab, Matyas enjoys bouldering, playing tennis and squash, and catching up with friends over a good pint of IPA.

Research

Solar Energy Conversion Devices

We focus on three different types of devices, all of them utilising the sun as energy source: thin layer solar cells, photoelectrodes for water splitting, and photoelectrochemical systems for simultaneous hydrogen and value-added product generation. Our work is concerned with understanding the working and loss mechanisms of these devices in order to improve their efficiency and operational stability.

Thin-film solar cells

With the development of next-generation thin-film (perovskite) solar cells, solar energy can be converted into electricity using affordable, Earth-abundant and solution-processable materials. Our research aims to understand and minimize losses at all stages of the process:
(1) generation of free charge carriers through light absorption,
(2) transport of photogenerated charge carriers,
(3) charge extraction.
research-solar-cells


Photoelectrochemical water splitting

Our photoelectrodes enable the direct conversion and storage of solar energy in the form of hydrogen, produced through water splitting. This process is known as 'photoelectrochemical water splitting'. Unlike solar cells, these photoelectrodes require a multifunctional catalytic layer at the photoelectrode / electrolyte interface. This layer protects the semiconductor materials from degradation caused by water and efficiently facilitates the chemical reaction. Our goal is to reduce performance losses and degradation within the thin layers, as well as at their interfaces with each other and the electrolyte, to enhance the overall device performance and stability.
research-photoelectrode-watersplitting


Photoelectrochemical hydrogen and value-added product generation

Photoelectrochemical devices can harness solar energy to convert abundant polymeric waste materials (e.g., biomass, plastics) into value-added oxidation products, rather than low-value oxygen, while simultaneously generating green hydrogen. Our research aims to apply cost-effective and widely available materials to enable the concurrent production of value-added products and hydrogen solely through solar illumination. We focus on engineering the properties of the photoactive (perovskite) layer and the catalyst, as well as refining the system design, to enhance overall photoelectrochemical performance.
research-solar-cells

 

Solar Energy Conversion Materials

Our solar energy conversion devices are primarily composed of semiconductor thin layers (including oxide, organic, perovskite, and polymer layers) fabricated through solution processing, along with highly conductive layers such as printed carbon, graphite, or metal. At the core of these devices lies the photoactive layer, which is responsible for absorbing solar energy. We utilize either metal halide perovskites with various compositions or organic bulk heterojunction semiconductors with diverse chemical structures as the photoactive materials. A key aspect of our research is the fabrication and fundamental characterisation of these materials and their composite layers in terms of crystal structure, chemical composition, morphology, optoelectronic and electrochemical properties, and energy levels, applying a broad range of state-of-the-art techniques.

Halide perovskite photoactive materials

Halide perovskite semiconductors have gained a lot of interest due to their composition of Earth-abundant elements, excellent optoelectronic properties (including high absorption coefficient, high charge carrier mobility, and defect tolerance), the ability to be solution-processed allowing large-scale manufacturing, and tuneable optical and electronic properties.

research-perovskite-structure

Publications


This is a list of selected publications, please see full list of publications with summary figures on this separate page or on Google Scholar.

Enhanced solar water oxidation and unassisted water splitting using graphite-protected bulk heterojunction organic photoactive layers

Daboczi, M.; Eisner, F.; Luke, J.; Yuan. S. W.; Al Lawati, N.; Zhi, M.; Yang, M.; Müller, J. S.; Stewart, K.; Kim, J.-S.; Nelson, J., Eslava, S.

Nature Energy 2025

Nature Energy - 2025

Ultrastable Halide Perovskite CsPbBr3 Photoanodes Achieved with Electrocatalytic Glassy-Carbon and Boron-Doped Diamond Sheets

Zhu, Z.; Daboczi, M.; Chen, M.; Xuan, Y.; Liu, X.; Eslava, S.

Nature Communications
2024, 15 (1), 1–10.

Nature Communications - 2024

Scalable All-Inorganic Halide Perovskite Photoanodes with >100 h Operational Stability Containing Earth-Abundant Materials

Daboczi, M.; Cui, J.; Temerov, F.; Eslava, S.

Advanced Materials
2023, 35, 2304350.

Advanced Materials - 2023

2D Bismuthene as a Functional Interlayer between BiVO4 and NiFeOOH for Enhanced Oxygen-Evolution Photoanodes

Cui, J.; Daboczi, M.; Regue, M.; Chin, Y. C.; Pagano, K.; Zhang, J.; Isaacs, M. A.; Kerherve, G.; Mornto, A.; West, J.; Gimenez, S.; Kim, J. S.; Eslava, S.

Advanced Functional Materials
2022, 32 (44), 2207136.

AFM - 2022

Suppressing PEDOT:PSS Doping-Induced Interfacial Recombination Loss in Perovskite Solar Cells

Chin, Y.-C.; Daboczi, M.; Henderson, C.; Luke, J.; Kim, J.-S.

ACS Energy Letters
2022, 560–568.

ACS Energy Letters - 2022

Join Us!

If you would like to contribute with your research to tackling global warming.

If you would like to be part of world-class research using state-of-the-art research facilities.

If you would like to work on an interdisciplinary research topic (physics – chemistry – materials science).

If you would like to fabricate and test new generation of (perovskite) solar cells and photoelectrodes.

If you are interested in photoactive materials and their optical, electronic and structural characterisation.

Please get in touch if you are interested in joining the group for your research project (TDK, summer internship, BSc or MSc thesis) or if you are thinking of starting a PhD!