The water could pilot the thermally induced evolution of surface chemical environment, which significantly influences the nanostructures, carrier dynamics, and trap behaviors in CQD solar cells
The researchers combined these new solar cells with a highly efficient water splitting catalyst, first demonstrated by Hongjie Dai''s group at Stanford University in the US, comprising a nickel
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
A team of engineers at the Chinese Academy of Sciences has modified the approach used to generate electricity with a hydrovoltaic cell, building one that uses little water and no sunlight. Their study is published in the
In this work, authors developed a hermetic hydrovoltaic cell that generates electricity from ambient heat without consuming water. The device operates continuously for 160 h, unaffected by
By further employing a Ni protective layer together with a bifunctional Ni–Mo catalyst for both the Si photocathode and photoanode, the PV–PEC tandem cell can perform spontaneous water splitting without any applied bias. A high ηSTH of 9.8% with a stability of over 100 h was achieved in alkaline solution under parallel AM 1.5G 1 sun illumination.
Water-based solar cells over 10% efficiency: Solar cells made with these nanoparticles were more efficient and needed less energy to be processed than those made from miniemulsion inks, in which Y6 crystallinity was more important. They even reached more than 90% of the performances of devices made from organic solvents, closing the gap with the
Two circular water strategies are proposed and assessed for the cell fab. Water savings up to 79% and wastewater discharge reductions up to 84% are possible. Water and resources recovery lead to economic and environmental benefits. Favorable downstream use of spent etch solutions for sustainable cement production.
Herein, a newly designed self-doped water-soluble PANI derivatives-poly (diphenylamine-4-sulfonic acid) (PDAS) is readily prepared and applied as hole extract layer in nonfullerene organic solar cells.
Researchers have developed an organic photovoltaic film that is both
A team of engineers at the Chinese Academy of Sciences has modified the
Two circular water strategies are proposed and assessed for the cell fab.
In this work, we propose a novel photovoltaic-thermal hybrid system coupling
Silicon (Si) hybrid solar cells have advantages of solution manufacturing process and the potential for achieving low-cost fabrication compared to crystalline Si solar cells. However, the functional layer prepared by solution method usually absorbs water molecules from the air, posing a challenge to the stability of the device. Here, a PEDOT
A solar cell, also known as a photovoltaic cell (PV cell), is an electronic device that converts the energy of light directly into electricity by means of the photovoltaic effect. [1] It is a form of photoelectric cell, a device whose
The concept of dye-sensitized solar cells is re-proposed here with a metal-free organic dye, an iodine-based electrolyte in a 100% aqueous environment and a new cathode (cationic PEDOT) synthesized for the first
Addressing how to reduce the temperature of PV modules without additional energy consumption or water resource depletion is a crucial aspect of enhancing PV efficiency. Water gel, similar to a sponge, is a porous material with strong water absorption capacity.
Solar cells are wired together and installed on top of a substrate like metal or glass to create solar panels, which are installed in groups to form a solar power system to produce the energy for a home. A typical residential solar panel with 60 cells combined might produce anywhere from 220 to over 400 watts of power. Depending on factors like
The concept of dye-sensitized solar cells is re-proposed here with a metal-free organic dye, an iodine-based electrolyte in a 100% aqueous environment and a new cathode (cationic PEDOT) synthesized for the first time with the aim of inhibiting the repulsion between the anions of redox couples and the PEDOT:PSS matrix commonly used as
How to Harness Solar Power. In one technique, long troughs of U-shaped mirrors focus sunlight on a pipe of oil that runs through the middle. The hot oil then boils water for electricity generation.
Nevertheless, its critically regulated environmental humidity often remains a burden, hindering its applications in reproducible fabrication of perovskite solar cells (PSCs). Herein, by introducing a water ethyl acetate (W-EA) solution treatment before annealing, improved perovskite crystallinity and homogeneity in FA 0.95-x MA x Cs 0.05 PbI 3 films without
Silicon (Si) hybrid solar cells have advantages of solution manufacturing process and the
Addressing how to reduce the temperature of PV modules without additional
Researchers have developed an organic photovoltaic film that is both waterproof and flexible, allowing a solar cell to be put onto clothes and still function correctly after being rained on or...
In this work, we propose a novel photovoltaic-thermal hybrid system coupling of semi-transparent solar cells and multistage interfacial desalination that can simultaneously produce freshwater and energy, achieving the record-high system efficiency.
Preventing the degradation of metal perovskite solar cells (PSCs) by humid air poses a substantial challenge for their future deployment. We introduce here a two-dimensional (2D) A 2 PbI 4 perovskite layer using pentafluorophenylethylammonium (FEA) as a fluoroarene cation inserted between the 3D light-harvesting perovskite film and the hole-transporting
Considering the high emissivity of the cells and the diversification of the current semi-transparent solar cells, we propose an alternative coupling contact method as illustrated in Fig. 4 b, in which the solar cell is not in direct contact with the absorber but rather separated by an air layer, ensures that the emission of the solar cells cannot directly impact the temperature of
4. Conclusions In summary, a solar photovoltaic-thermal system capable of cogenerating electricity and freshwater is proposed by coupling semi-transparent solar cells and multistage interfacial desalination, thereby improving the utilization of the full solar spectrum.
Nature Communications, 2024; 15 (1) DOI: 10.1038/s41467-024-44878-z RIKEN. "A solar cell you can bend and soak in water." ScienceDaily. ScienceDaily, 27 March 2024. < / releases / 2024 / 03 / 240327124746.htm>.
Simultaneously, sub-bandgap photons directly transmit to the absorber on the backplate for photothermal conversion, contributing to seawater desalination. In addition, during the operation of the solar cell, a portion of the energy dissipates as heat, which can be further utilized by the lower stages.
Designing a highly efficient and stable photoelectrochemical (PEC) tandem cell for unassisted solar water splitting is considered a promising approach for large-scale solar energy storage. To date, various tandem device configurations have been reported. However, the achievement of a solar-to-hydrogen conver
Significant efforts have been devoted to the integration of combined solar cells and desalination in PVT configurations, aiming to generate electricity and produce freshwater simultaneously [, , ]. This approach is motivated by the fact that solar cells tend to generate more power at lower temperatures than at higher ones .
Tested under 1000 W/m 2 solar radiation, the results showed a temperature reduction of up to 10℃ compared to the original PV, with a 7.2% increase in efficiency. The drawback is that dry water gel is difficult to absorb water vapor from the air, unable to replenish water automatically.
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