All-perovskite tandem solar cell based on tin-lead perovskite achieves 28.8% efficiency
An international research team has developed an all-perovskite tandem PV device that reportedly shows reduced recombination losses in the cell’s bottom device and remarkable stability. To improve the perovskite solar cell’s surface, the scientists created partially non-conductive and non-functional areas that protect the perovskite area underneath from becoming defective.
Kalpana Systems launches roll-to-roll spatial atomic layer deposition tools
Kalpana Systems, a Dutch equipment manufacturer, is launching spatial atomic layer deposition (sALD) tools to be used in roll-to-roll manufacturing processes in the solar PV, organic light emitting diode, battery and packaging industries. The initial application is expected to be barrier layer deposition.
Improving perovskite solar cell performance with cadmium telluride buffer layer
An international research team has conducted a series of simulations to investigate how a cadmium telluride buffer layer may help increase efficiency and stability in perovskite solar cells. Their experiment showed that cell efficiency may climb from 11.09% to 23.56%.
New discovery paves the way for more efficient perovskite solar cells
Researchers from University of Texas have used computational methods to study the formation of polarons in halide perovskites. The findings revealed topological vortices in polaron quasiparticles.
Hydronic closed-loop cooling system for photovoltaic modules
An international research team has developed a closed-loop PV cooling system that can reportedly offer 24-hour continuous operation. The system is claimed to be particularly suitable for hot and arid regions and to improve the lifespan of solar panels by up to 8.2%.
Thin-film perovksite solar cell based on fluorinated phosphoric acid achieves 20.5% efficiency
Japanese scientists built a thin-film perovskite solar cell incorporating fluorinated phosphoric acid (TPFP) into the absorber’s precursor solution. The device achieved remarkable power conversion efficiency due to effective passivation at the interface between the perovskite film and the hole transport layer.
Self-cleaning perovskite solar cell based on leek leaves-like film achieves 14.2% efficiency
Scientists in Finland have built a perovskite solar cell with a bio-inspired coating that reportedly improves light transmittance while providing self-cleaning properties. The film was able to improve the device efficiency by up to 6%.
Solar cell based on 2D Dion-Jacobson perovskite achieves 19.11% efficiency
Chinese researchers claim to have developed an “ultrastable” perovskite solar cell based on a two-dimensional, Dion-Jacobson phase perovskite. The device was constructed with blade coating technology and is scalable, according to its creators.
Two-terminal perovskite-CIGS tandem solar cells have technical potential to achieve 26.69% efficiency
A Dutch and U.S. research team performed optical and electrical simulations to understand loss mechanisms in two terminal (2T) tandem cells based on perovskite and commercially available copper-indium-gallium-selenide (CIGS) cells, and subsequently established a roadmap to increase efficiency via four key modifications.
EneCoat to accelerate perovskite PV production
EneCoat Technologies, a Japanese solar perovskite developer, has raised JPY 5.5 billion ($35 million) from new and existing investors to finance new collaborations based on its low-temperature production process.
