perovskite solar cells

U.S. researchers have created an inorganic mixed halide perovskite solar cell which they claim shows no thermal degradation even at 200 degrees Celsius for three days. The device can be used in tandem junction cells and is designed for use in real-life environments with high solar irradiation.

Scientists from Singapore have developed semi-transparent perovskite solar cells that can be easily integrated into a range of urban contexts, including building facades, gates and windows. The 21cm2 mini panels are made of perovskite solar cells based on methylammonium lead iodine (MAPbI3), with an efficiency of 20.28% for 0.16 cm2.

As a focus of research at leading institutes the world over, new developments in the perovskite field come thick and fast almost every week. From x-ray observations on a nanoscale to financing and plans for mass production, pv magazine is bringing together some of the most exciting developments of recent weeks.

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.