perovskite solar cells

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.

Scientists at the University of Texas at Dallas have made a discovery they say has “altered the understanding of the fundamental properties of perovskite crystals”. Their findings could improve understanding of defect formation in perovskites, leading to devices with enhanced performance and stability.

With the Chinese manufacturer claiming it has already hit 16% conversion efficiency on a large panel, a recent perovskite conference heard predictions the technology will make up the next generation of PV cells – provided it avoids the pitfalls experienced by thin-film devices.

A Chinese research team has tested large-area perovskite solar cells by sending them into near-earth orbit at 35 km, and has discovered the near lack of oxygen and moisture is good for their stability.