Jump to main content
Jump to site search


Photoinduced photoluminescence enhancement in self-assembled clusters of formamidinium lead bromide perovskite nanocrystals

Author affiliations

Abstract

Nanocrystals of formamidinium lead bromide perovskite (FAPbBr3) self-assemble into clusters in powder and film samples and provide a prolonged photoluminescence lifetime, which is attributed to the diffusion of charge carriers through interparticle states formed among nanocrystals. Interestingly, the photoluminescence lifetime decreases and the emission intensity increases for the clusters, which is with the increase in the intensity of excitation light. By doping the nanocrystal clusters with C60, we successfully harvested the photogenerated charge carriers. Nonetheless, at high intensities of excitation, the rate of radiative recombination becomes comparable to that of the electron transfer to C60. Thus, the optimum rate of electron transfer to C60 is accomplished by minimally exciting the self-assembled nanocrystals.

Graphical abstract: Photoinduced photoluminescence enhancement in self-assembled clusters of formamidinium lead bromide perovskite nanocrystals

Back to tab navigation

Supplementary files

Publication details

The article was received on 13 Dec 2018, accepted on 12 Mar 2019 and first published on 12 Mar 2019


Article type: Paper
DOI: 10.1039/C8NR10082A
Citation: Nanoscale, 2019, Advance Article

  •   Request permissions

    Photoinduced photoluminescence enhancement in self-assembled clusters of formamidinium lead bromide perovskite nanocrystals

    S. Ghimire, V. C. Nair, C. Muthu, K. Yuyama, M. Vacha and V. Biju, Nanoscale, 2019, Advance Article , DOI: 10.1039/C8NR10082A

Search articles by author

Spotlight

Advertisements