A5087670094- Advanced Photocatalysis Techniques
- Electrocatalysts for Energy Conversion
- Advanced battery technologies research
- Chalcogenide Semiconductor Thin Films
- Copper-based nanomaterials and applications
- Quantum Dots Synthesis And Properties
- TiO2 Photocatalysis and Solar Cells
- Perovskite Materials and Applications
- Semiconductor materials and devices
- Electronic and Structural Properties of Oxides
- Transition Metal Oxide Nanomaterials
- Advancements in Battery Materials
- Advanced Battery Technologies Research
- Ga2O3 and related materials
- CO2 Reduction Techniques and Catalysts
- Advanced Thermoelectric Materials and Devices
- Electron and X-Ray Spectroscopy Techniques
- Solar Thermal and Photovoltaic Systems
- Geothermal Energy Systems and Applications
- solar cell performance optimization
- Solar-Powered Water Purification Methods
- Thermography and Photoacoustic Techniques
- Radiation Detection and Scintillator Technologies
- Phase Change Materials Research
- Gas Sensing Nanomaterials and Sensors
Heriot-Watt University
2021-2025
Loughborough University
2024-2025
Korea Innotech (South Korea)
2011-2023
Delft University of Technology
2018-2020
Technical University of Denmark
2014-2018
Danish Geotechnical Society
2017
Stanford University
2016
This study highlights the feasibility to scale-up photoelectrochemical water splitting TW level using Pt nanoparticles as hydrogen evolution catalyst.
Sputter deposition of 50 nm thick NiO films on p(+)-n-Si and subsequent treatment in an Fe-containing electrolyte yielded highly transparent photoanodes capable water oxidation (OER) alkaline media (1 M KOH) with high efficiency stability. The Fe thin enabled Si-based photoanode assemblies to obtain a current density 10 mA/cm(2) (requirement for >10% efficient devices) at 1.15 V versus RHE (reversible hydrogen electrode) under red-light (38.6 mW/cm(2)) irradiation. Thus, the were harvesting...
Stabilizing efficient photoabsorbers for solar water splitting has recently shown significant progress with the development of various protection layers. Suitable layers tandem devices should be conductive, transparent, and stable in strongly acidic or alkaline solutions. This paper shows that under certain conditions n-type semiconductors, such as TiO2, can used Si-based photoanodes. It also provides evidence even a photoanode assembly TiO2 is conducting only electrons (not holes p-type...
We present the first experimental demonstration of c-Si based photocathode for hydrogen production under back-illumination with theoretical model study.
In recent years, research in solar energy storage with photoelectrochemical cells (i.e., redox flow batteries: SRFBs) has resurged. This development is emerging parallel the growing field of into organic couples intended for aqueous batteries (RFBs) a range different pH environments. battery, dissolved electroactive molecules are charged directly from radiation by semiconductor photoelectrodes. The solution can then at later stage be converted electricity, and as such an approach to build...
Thermochemical energy storage (TCES) has a vital role to play in future where 100 % of our domestic needs are generated by renewables. Heating and cooling represent 51 total consumption, as such contribute highly greenhouse gas emissions. As society, we have effective solutions for this the form renewable sources, primary two being: solar thermal heat wind power. However, one issue plagues these that is their intermittency. Specifically, seasonal deficit which represents significant surplus...
Solar redox flow batteries have attracted attention as a possible integrated technology for simultaneous conversion and storage of solar energy. In this work, we review current efforts to design aqueous in terms battery electrolyte capacity, efficiency depth charge. From materials cost perspective, simple, cost-efficient, will most likely incorporate only one semiconductor, demonstrate here system where single photocathode is accurately matched the couples allow complete The TiO2 protected...
We introduce the synthesis of hybrid nanostructures comprised ZnO nanocrystals (NCs) decorating nanosheets and nanowires (NWs) MoS2 prepared by atomic layer deposition (ALD). The concentration, size, surface-to-volume ratio NCs can be systematically engineered controlling both number ALD cycles properties substrates, which are sulfurizing MoO3. Analysis chemical composition combined with electron microscopy synchrotron X-ray techniques as a function cycles, together results quantum...
NetZero drive is exploring new energy solutions around the globe. Carbon-based electrodes are receiving wider attention for storage applications. This work reviews application of diamond-like carbon (DLC) coatings lithium-based batteries (LBB). DLC atomic structure, mechanisms at atomistic and microstructure levels, manufacturing LBB with plasma methods explained. also describes effects coating thickness, deposition temperature, architecture by layers, doping on performance LBB. The reported...
Solar‐driven photoelectrochemical (PEC) carbon dioxide (CO 2 ) conversion to valuable chemicals, combining the advantages of photocatalysis and electrocatalysis, represents a promising approach toward establishing carbon‐neutral society harnessing solar energy. Photoelectrode materials doped with metals and/or nonmetals have shown promise in achieving high CO reduction efficiency. Metal or nonmetal doping entails introducing heteroelement into semiconductor, thereby modifying band potentials...
Correction for ‘Evaluation of redox pairs low-grade heat energy harvesting with a thermally regenerative cycle’ by José Tomás Bórquez Maldifassi et al., Energy Adv. , 2024, 3 2877–2886, https://doi.org/10.1039/D4YA00368C.
Abstract This work investigates long‐term photoelectrochemical hydrogen evolution (82 days) in 1 M HClO 4 using a TiO 2 :H protected crystalline Si‐based photocathode with metal‐oxide‐semiconductor (MOS) junctions. It is shown that day/night cycling leads to relatively rapid performance degradation while the photocurrent under continuous light condition stable. We observed loss mainly due contamination of catalytically active surface carbonaceous material. By ultraviolet (UV) exposure, we...
Cu 2 ZnSnS 4 (CZTS) thin films were deposited onto Mo-coated and tin-doped indium oxide (ITO) coated glass substrates by using single step electrodeposition technique followed annealing in N + H S atmosphere. Subsequently, they applied to the fabrication of film solar cells. Upon annealing, amorphous nature as-deposited precursor changes into polycrystalline kesterite crystal structure with uniform densely packed surface morphology. Energy dispersive X-ray spectroscopy (EDS) study reveals...
Abstract Si is an excellent photo‐absorber for use in dual‐band‐gap photoelectrochemical water splitting. We investigate photoanodes with n + pp ‐Si configuration under back‐side illumination, which suited to work a tandem device stack. A co‐sputtered NiCoO x film coupled the was used as protective catalyst oxidation reaction 1 m KOH. The sample showed high photocurrent (21 mA cm −2 ) red‐light illumination (38.6 mW ). Long‐term stability testing gradual decrease of activity beginning, and...
Wide-band-gap mixed-halide CH3NH3PbI3–XBrX-based solar cells have been prepared by means of a sequential spin-coating process. The spin-rate for PbI2 as well its repetitive deposition are important in determining the cross-sectional shape and surface morphology perovskite, and, consequently, J–V performance. A perovskite cell converted from with dense bottom layer porous top achieved higher device performance than those analogue layer. This work demonstrates facile way to control film...
Abstract Recent advances in photoelectrochemical redox flow cells, such as solar batteries, have received much attention an alternative integrated technology for simultaneous conversion and storage of energy. Theoretically, it has been reported that even single-photon devices can demonstrate unbiased photo-charging with high solar-to-chemical efficiency; however, the poor kinetics photoelectrodes thus far severely limit performance. Here, we report a band alignment design propose surface...
We present the theoretical model reflecting experimental parameters, such that we can highlight critical parameters merit most attention in further studies towards practical realisation of solar-rechargeable redox flow batteries (SRFBs).