Will nanoplatelets displace quantum dots in solution-processed LEDs?

An international team of researchers from Italy's ISMac-CNR, Milan University and France's CNRS has taken the advances reported in the use of organic interlayers with spherical colloidal quantum dots (QDs) to boost the quantum efficiency of colloidal nanoplatelets (NPLs)-based LEDs. Thanks to their efficient and narrowband luminescence and their relative ease of mass production (compared to quantum dots), the researchers note that nanoplatelets are promising candidates for solution-processable ultrahigh colour purity light-emitting diodes (LEDs). Colloidal semiconductor NPLs behave like two-dimensional quantum wells and their luminescence can be controlled through particle thickness (during their elaboration), they do not suffer from Auger recombination.