Sentences with phrase «perovskite nanocrystals»

«Our hope is that this could be used not only for perovskite nanocrystals but also for bulk materials and thin films used in applications such as photovoltaics.»

Atoms on the surface are vulnerable to reactions that can degrade the material, so molecules that bind to the surface — called surface ligands or capping ligands — are used both to stabilize perovskite nanocrystals and to control their properties.

Researchers at UC Santa Cruz attacked this problem by focusing on perovskite nanocrystals, in which the instability problems are magnified by the large surface area of the particles relative to their volume.

«Novel capping strategy improves stability of perovskite nanocrystals: Study addresses instability issues with organometal - halide perovskites, a promising class of materials for solar cells, LEDs, and other applications.»

Conventional perovskite nanocrystals capped with ligands consisting of long straight - chain amines show poor stability in solvents such as water and alcohol.

In a paper published June 13 in Angewandte Chemie, the UCSC researchers reported the results of experiments using unique branched ligands to synthesize perovskite nanocrystals with greatly improved stability and uniform particle size.

Professor Shangchao Lin, who led the research at Florida State University, said: «Our findings also show that the perovskite nanocrystals emit light extremely quickly and are very energy efficient.

Not exact matches

Researchers at the U.S. Naval Research Laboratory (NRL) Center for Computational Materials Science, working with an international team of physicists, have revealed that nanocrystals made of cesium lead halide perovskites (CsPbX3), is the first discovered material which the ground exciton state is «bright,» making it an attractive candidate for more efficient solid - state lasers and light emitting diodes (LEDs).