Nature research paper: All-perovskite tandem solar cells with improved grain surface passivation
All-perovskite tandem solar cells hold the promise of surpassing the efficiency limits of single-junction solar cells; however, until now, the best-performing all-perovskite tandems have exhibited lower certified efficiency than have single-junction perovskite solar cells. A thick mixed Pb-Sn narrow-bandgap subcell is needed to achieve high photocurrent density in tandems; yet this is challenging owing to the short carrier diffusion length within Pb-Sn perovskites.
Molecular dynamics simulations suggest that widely-used phenethylammonium cations are only partially adsorbed on the surface defective sites at perovskite crystallization temperatures. The passivator adsorption is predicted to be enhanced using 4-trifluoromethyl-phenylammonium , which exhibits a stronger perovskite surface-passivator interaction than does PEA.
France Dernières Nouvelles, France Actualités
Similar News:Vous pouvez également lire des articles d'actualité similaires à celui-ci que nous avons collectés auprès d'autres sources d'information.
All-perovskite tandem solar cells with improved grain surface passivation - NatureNature - <ArticleTitle Language="En" xml:lang="en">All-perovskite tandem solar cells with improved grain surface...
Lire la suite »
Age of the oldest known Homo sapiens from eastern Africa - NatureGeochemical analyses correlating the stratum that overlies the sediments containing the Omo fossils with material from a volcanic eruption suggest that these fossils (the oldest known modern human fossils in eastern Africa) are over 200,000 years old.
Lire la suite »
Career Opportunities: Reporter or Senior Reporter, Biomedical Sciences, Nature (40240)
Lire la suite »
Elephant flips over SUV with family in it at wildlife nature parkThis family’s wildlife safari just got trunk-acated after an angry elephant flipped over their car with them inside,
Lire la suite »
Message to mayors: cities need natureUrban areas must invest in ecosystems, not just in roads, pipes and homes.
Lire la suite »
Au-Pd Separation Enhances Bimetallic Catalysis of Alcohol Oxidation - NatureNature - <ArticleTitle Language="En" xml:lang="en">Au-Pd Separation Enhances Bimetallic Catalysis of Alcohol Oxidation</ArticleTitle>
Lire la suite »