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Monodisperse Formamidinium Lead Bromide Nanocrystals With Bright and Stable Green Photoluminescence

Loredana Protesescu, Sergii Yakunin, Maryna I Bodnarchuk, Federica Bertolotti, Norberto Masciocchi, Antonietta Guagliardi, Maksym V Kovalenko

J Am Chem Soc. 2016 Nov 2;138(43):14202-14205.

PMID: 27737545

Abstract:

Bright green emitters with adjustable photoluminescence (PL) maxima in the range of 530-535 nm and full-width at half-maxima (fwhm) of <25 nm are particularly desirable for applications in television displays and related technologies. Toward this goal, we have developed a facile synthesis of highly monodisperse, cubic-shaped formamidinium lead bromide nanocrystals (FAPbBr3 NCs) with perovskite crystal structure, tunable PL in the range of 470-540 nm by adjusting the nanocrystal size (5-12 nm), high quantum yield (QY) of up to 85% and PL fwhm of <22 nm. High QYs are also retained in films of FAPbBr3 NCs. In addition, these films exhibit low thresholds of 14 ± 2 μJ cm-2 for amplified spontaneous emission.

Chemicals Related in the Paper:

Catalog Number Product Name Structure CAS Number Price
AP146958067 Formamidinium bromide Formamidinium bromide 146958-06-7 Price
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