Netherlands’ ECN achieves 30.2% efficiency for bifacial tandem cell based on perovskite
The cell was created by applying a newly developed perovskite cell on top of an industrial bifacial crystalline silicon version. The resulting cell is said to better harvest sunlight, as one unit is optimized for high energy photons and the other absorbs low energy particles.
Titanium oxide helps perovskite solar cell reach 16.8% efficiency
A group of Japanese researchers have used anatase and brookite, which are two different variants of titanium dioxide, to improve the efficiency of a perovskite-based solar cell. The use of the two minerals is said to considerably improve the control of the electron transport out of the perovskite layer.
Swiss researchers claim 29% efficiency for residential CPV panel
The module was developed by Insolight, a spin-off of Switzerland’s École polytechnique fédérale de Lausanne. The panel is based on tiny solar cells usually used for spaceflight applications and the limited amount used in the module makes it close to mass production, its creators claim.
Understanding why cesium and rubidium salt improve the yield of perovskite solar cells
The addition of either salt enables more even distribution of halide atoms within the perovskite material – key to increasing cell conversion efficiency. The explanation should speed up the process of identifying the best perovskite mixes.
Japanese scientists seek to lower costs of PV-powered hydrogen
A research team has conducted a demonstration of the economic feasibility of battery-assisted, low-cost hydrogen production from solar. The scientists claim their system will mean hydrogen could be produced for $0.15-0.25 per cubic meter in 2030.
Singlet fission may raise theoretical efficiency of solar cells to 44%
According to a U.S. research team, new nanomaterials relying on dyes based on diketopyrrolopyrrole and rylene can generate a singlet fission reaction that extends the life of harvestable electronic charges.
Clustering-based computation used to measure PV module degradation
The method could be an effective tool to measure the performance of solar modules, according to research, due to its ability to speed up the inspection process, preventing further damage and hastening repairs.
Iron therapy for solar cells
A research team from Sweden has developed a new iron-based molecule, which it says has the potential for further cost reductions in solar cells, and can also function as a photocatalyst to produce fuel.
Fluorinated electron-acceptor improves yield of organic thin film solar cells
A Japanese research team claims to have tailored an electron-accepting unit, which has been successfully used in an organic semiconductor applied in a solar cell device that showed high PV performance.
Swiss research group develops methylammonium-free perovskite cells
The organic methylammonium (MA) molecules in the cell were replaced with inorganic elements such as rubidium and cesium. The planar perovskite cells resulting from the research have an efficiency of more than 20%.
