Perovskite

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.

The German researchers were able to improve the efficiency through a simplified production process.

The voltage is key to improving efficiency, the scientists say. It indicates how much energy is lost within the cell through ‘recombination processes’.

A team of researchers from South Korea’s Ulsan National Institute of Science and Technology has demonstrated a new type of tin-based perovskite. The researchers say that, despite current low efficiency, levels could lead to improved understanding and the development of solar cells using lead-free perovskites.

German and Greek scientists are working with industrial partners on the technological feasibility of making solar modules based on perovskite absorbers. The prototypes should be freely configurable in size, shape and color.

Scientists are seeking to push ion migration to areas of perovskite-based solar cells where more electric charge can be extracted.

The research team was able to improve the cell efficiency by 2.1%. The cell silicon layer was etched on the back-side, while a a polymer light management (LM) foil was applied to the front-side of the device.

Researchers at the University of Amsterdam have found what they describe conclusive evidence that perovskites feature “efficient carrier multiplication,” effectively increasing the single layer efficiency limit from 33% to 44%.

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%.

This means that this promising material, contrary to common belief, is able to form domains of polarized strain to minimize elastic energy. The research team made its discovery by using multimodal imaging.