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Surface Decorating of CH3NH3PbBr3 Nanoparticles with the Chemically Adsorbed Perylenetetracarboxylic Diimide
journal contribution
posted on 2016-03-13, 00:00 authored by Ruimin Zhu, Chengguang Gao, Tingting Sun, Li Shen, Dejun Sun, Xiyou LiAn organic dye-modified organolead
halide CH3NH3PbBr3 nanoparticle (cubic)
is prepared successfully
by using a perylenetetracarboxylic diimide (PDI) bearing an -NH3+ headgroup as the capping ligand. The nanopartilces
are homogeneous with high crystallinity. The photoluminescence of
perovskite is quenched completely by the chemically adsorbed PDI molecules.
This efficient fluorescence quenching has confirmed that the PDI molecules
are anchored on the surface of CH3NH3PbBr3 nanoparticle. The resulting nanoparticles can be dispersed
in organic solvents, and the resulting dispersion remains stable for
days. This result provides a general guideline for surface engineering
of organolead halide CH3NH3PbBr3 nanoparticles.