Light-Emitting Diodes with Semiconductor Nanocrystals (pages 6538–6549)
Andrey L. Rogach, Nikolai Gaponik, John M. Lupton, Cristina Bertoni, Diego E. Gallardo, Steve Dunn, Nello Li Pira, Marzia Paderi, Piermario Repetto, Sergei G. Romanov, Colm O'Dwyer, Clivia M. Sotomayor Torres and Alexander Eychmüller
Article first published online: 30 JUL 2008 | DOI: 10.1002/anie.200705109
Small things bright and beautiful: research into light-emitting diodes (LEDs) made from semiconductor nanocrystals has advanced significantly in just one decade: external quantum efficiency has improved by over two orders of magnitude and highly saturated color emission is now the norm (see picture; nano-crystalbased LED and size-dependent photoluminescence of CdTe nanocrystals). The nanocrystal devices have potential advantages over purely organic LEDs such as spectrally pure emission.