perovskite solar cells

Researchers in China have proposed manufacturing perovskite cells using a pre-nucleation technique. Compared to traditional solvent dripping methods, the approach enables the creation of smaller crystallites in the perovskite films as uncontrolled crystallite growth affects the efficiency and durability of cells.

South Korean scientists have developed two perovskite solar cells based on a polymer made with peppermint oil and walnut aroma food additives, respectively. The new dopant‐free hole transport polymer is said to enable longer durability of the devices and to prevent lead-leakage.

Researchers from China are proposing to use spent battery lead for creating a perovskite that can be used in the production of solar cells that are based on this promising material. The proposed one-step process, which was tested in the production of a 17.38% efficient perovskite heterojunction cell, is said to be cheaper and less energy-intensive than other recycling processes for waste lead from lead-acid batteries.

A U.S. research group has used a lead-absorbing material to coat the front and rear of a perovskite solar cell stack. The researchers claim the films captured 96% of lead leakage when the cells were damaged.

Saudi researchers have developed a cell which is said to exhibit improved structural and optoelectronic properties as well as enhanced carrier mobility and diffusion lengths. The feat was achieved by reducing voltage losses using a new passivation technique.

Spanish researchers have unveiled a monolithic nano-structured perovskite silicon tandem device they claim can reduce optical losses by more than a third compared to planar perovskite cells of the same kind.

Japanese researchers have identified a perovskite material with a strong band edge gap and high stability which they say could offer 38.7% efficiency if used in the correct tandem cell architecture.

Researchers from the two prestigious U.K. universities are analyzing spatiotemporal charge-carrier dynamics in the perovskite materials used for solar applications. They have discovered the carriers propagate ballistically over 150nm within 20fs of photon absorption.

A U.S. research team has used machine learning to optimize material composition and predict the design strategies and performance of perovskite solar cells. The researchers analyzed 2,000 peer-reviewed perovskite publications and collected more than 300 data points.

According to new research, metal chalcogenide perovskites can be used as a thermoelectric material than can convert thermal energy from the sun to usable electric power. These materials, which can also be used to develop perovskite PV cells, are known for their high thermal and aqueous stability, along with their nontoxic elemental composition.