Perovskite applications

Researchers from King Abdullah University of Science and Technology (KAUST) have fabricated efficient, two-terminal monolithic perovskite-silicon tandem solar cells and tested them outdoors. The tandem device that resulted from this research was found to be more stable than conventional perovskite cells and, importantly, optimized for use in industry.

Perovskite/silicon cells under test at KAUST outdoor facility

The findings of KAUST Research Scientists Dr. Erkan Aydin and Dr. Thomas Allen, and colleagues in Professor Stefaan De Wolf's group, indicate that the temperature dependence of both the silicon and perovskite bandgaps—which follow opposing trends—shift the current-matching-optimization point away from that for two-terminal tandems under standard test conditions.

A team of scientists, led by Professors Hyunsik Im, Hyungsang Kim and Jungwon Kwak from Dongguk University and Asan Medical Center in Korea,have developed perovskite metal halide nanocrystals based hybrid materials with high quantum yields for efficient X-ray detection and high-resolution X-ray imaging.

Using the hybrid nanomaterial scintillators, they designed a scalable and cost-effective X-ray detector panel in liquid form. The hybrid nanomaterial scintillator works under X-ray irradiation typically employed in both diagnosis and treatment. More interestingly, the hybrid scintillator has a faster scintillation decay process over the conventional scintillators, which is beneficial for digital motion X-ray. The reported method and scintillation mechanism will be extended to enhance the quantum yield of various types of scintillators, enabling low-dose radiation detection in various fields including fundamental science and imaging.