Featured
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Article
| Open Access
MXene-reduced graphene oxide sponge-based solar evaporators with integrated water-thermal management by anisotropic design
Water-thermal management is difficult to coordinate in solar evaporators, limiting their performance. Here, hierarchical MXene-reduced graphene oxide sponges with anisotropic thermal conductivity and axial-directional channels integrate water-thermal management for rapid and continuous evaporation.
- Zonglin Liu
- , Renjie Ding
- & Xiaodong He
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Article
| Open Access
Hydrogen-induced degradation dynamics in silicon heterojunction solar cells via machine learning
Silicon heterojunction solar cells are highly efficient, but their degradation hinders market acceptance. Here, experimental measurements combined with machine learning methods show that mobile hydrogen develops a gradient, forcing it to drift from the interface and leaving behind defects.
- Andrew Diggs
- , Zitong Zhao
- & Gergely T. Zimányi
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Article
| Open Access
Momentum-resolved electronic structure of LaTiO2N photocatalysts by resonant Soft-X-ray ARPES
LaTiO2N is a promising photocatalyst for light-driven water splitting. Here, ARPES is used to study the momentum-resolved electronic structure of the sub-surface region of LaTiO2N and monitor its evolution during the oxygen evolution reaction.
- Craig Lawley
- , Arian Arab
- & Vladimir N. Strocov
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Review Article
| Open Access
Next-generation applications for integrated perovskite solar cells
Integrating perovskite photovoltaics with other systems can substantially improve their performance. This Review discusses various integrated perovskite devices for applications including tandem solar cells, buildings, space applications, energy storage, and cell-driven catalysis.
- Abdulaziz S. R. Bati
- , Yu Lin Zhong
- & Munkhbayar Batmunkh
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Article
| Open Access
Developing sustainable FeTi alloys for hydrogen storage by recycling
FeTi alloys are efficient hydrogen storage mediums but their synthesis using high-purity metals poses considerable environmental sustainability concerns. Here, industrial scraps of iron and titanium are used to synthesise FeTi with high hydrogen storage capacities and tunable thermodynamic properties.
- Yuanyuan Shang
- , Shaofei Liu
- & Claudio Pistidda
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Article
| Open Access
Tracking the evolution of materials and interfaces in perovskite solar cells under an electric field
Stable performance is a key requirement for solar cell devices. Here, spectroscopy combined with depth profiling reveals I2 and PbI2 are distributed evenly in a perovskite solar cell under an electric field, while the electric field itself promotes chemical heterogeneity and device degradation.
- Juntao Hu
- , Peng Chen
- & Zheng-Hong Lu
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Article
| Open Access
High-throughput exploration of halide perovskite compositionally-graded films and degradation mechanisms
High-throughput materials discovery can reduce the time taken to identify high-performing materials. Here, compositionally-graded films are fabricated in a binary halide perovskite system, of interest for solar cells, and their stability investigated during artificial aging.
- Shahram Moradi
- , Soumya Kundu
- & Makhsud I. Saidaminov
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Article
| Open Access
Stretchable micro-scale concentrator photovoltaic module with 15.4% efficiency for three-dimensional curved surfaces
The use of photovoltaic devices for energy harvesting in real-world applications requires that they are conformable to non-flat surfaces. Here, a micro-scale concentrator module shows 15.4% outdoor conversion efficiency and can stretch over curved 3D surfaces.
- Daisuke Sato
- , Taizo Masuda
- & Noboru Yamada
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Article
| Open Access
Microstructural degradation during the storage of biomass pellets
Biomass pellets are a promising renewable source of fuel, and are increasingly transported around the globe. Here, it is found that the combined effect of heat and humidity during pellet storage causes inclusion, pore and crack growth, degrading the microstructure.
- Luis Cutz
- , Urša Tiringer
- & Wiebren de Jong
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Article
| Open Access
Moisture resistance in perovskite solar cells attributed to a water-splitting layer
The poor environmental stability of lead halide perovskites limits their performance in solar cells. Here, a CuSCN nanoplateletes/p-type semiconducting polymer composite layer enables the stable performance of a solar cell for 28 days in high-moisture conditions, attributed to water splitting.
- Min Kim
- , Antonio Alfano
- & Francesco Lamberti
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Article
| Open Access
Two-photon photocurrent in InGaN/GaN nanowire intermediate band solar cells
Intermediate band solar cells have the ability to reach efficiencies similar to multijunction cells using a single semiconductor junction. Here, enhanced two-photon carrier generation is demonstrated on a silicon substrate in an InGaN/GaN quantum dot-in-nanowire heterostructure intermediate band solar cell.
- Ross Cheriton
- , Sharif M. Sadaf
- & Karin Hinzer
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Article
| Open Access
Design principles for efficient photoelectrodes in solar rechargeable redox flow cell applications
Rational design of photoelectrodes is a key requirement to boost conversion efficiency of photoelectrochemical redox flow cells. Here, band alignment design and surface coverage control are used to design single-photon photoelectrodes that achieve 9.4% solar-to-chemical conversion efficiency.
- Dowon Bae
- , Gerasimos Kanellos
- & Wilson A. Smith
Selecting non-halogenated low-toxic hole transporting materials for Roll-to-Roll perovskite solar cells using carbon electrodes