Nanowerk September 5, 2023 Although metal halide perovskites have rapidly enabled a range of high-performance photovoltaic technologies, their catastrophic failure under reverse voltage bias poses a roadblock for their commercialization. An international team of researchers (Princeton University, Saudi Arabia) conducted a series of stress tests to compare the reverse-bias stability of perovskite single-junction, silicon single-junction, and monolithic perovskite/silicon tandem solar cells. They demonstrated that the tested perovskite/silicon tandem devices were considerably more resilient against reverse bias compared with perovskite single-junction devices. The origin of such improved stability stemmed from the low reverse-bias diode current of the silicon subcell. This translated […]
Tag Archives: Photovoltaic technology
Fabrication of perovskite solar cells with just a piece of paper? A new method tells you how! (w/video)
Nanowerk February 15, 2022 Most perovskite films in laboratories around the world are deposited through spin coating which guarantees high control on film thickness as well as morphology. However, most of the ink is expelled during deposition and wasted. An international team of researchers (Iran, Italy) has developed a completely new method that uses a simple sheet of paper to deposit the perovskite films without a spin coater or other large area techniques such as slot-die coating or blade coating. They fabricated solar cells on flexible PET substrates manually with 11% power conversion efficiency. Deposition after soaking the sheet of […]