Imploding bubbles improve the growth of single-crystalline perovskite solar cell thin filmsSingle th

Imploding bubbles improve the growth of single-crystalline perovskite solar cell thin filmsSingle thin-film crystals are required to utilize promising hybrid organic/inorganic perovskite materials to develop solar cells. Saudi Arabia’s King Abdullah University of Science and Technology (KAUST) researchers have now shown how imploding bubbles in a solution can grow single crystals of the preferred orientation for manufacturing thin films.Hybrid organic/inorganic perovskite materials are some of the most promising solar cell materials, as they are easy to produce and show excellent solar light conversion efficiencies.“Our monocrystalline films provide a platform to directly implement perovskite single crystals and to elucidate their promises and challenges for solar cells,” said Osman Bakr, KAUST associate professor of material science and engineering who also led the research study.Hybrid perovskite materials can easily be fabricated on a large scale from a solvent solution. However, this process typically produces polycrystalline perovskite films that have a smaller solar light conversion efficiency than monocrystalline materials because the boundary between crystalline grains leads to losses. In particular, growth of single-crystalline perovskite solar cell films has not yet been achieved on top of other materials, which is a requirement for practical devices.Read more. -- source link
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