Role of the crystallization substrate on the photoluminescence properties of organo-lead mixed halides perovskites | Zendy

Michele De Bastiani | Zendy; Valerio D’Innocenzo | Zendy; Samuel D. Stranks | Zendy; Henry J. Snaith | Zendy; Annamaria Petrozza | Zendy

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Role of the crystallization substrate on the photoluminescence properties of organo-lead mixed halides perovskites

Author(s) -

Michele De Bastiani,

Valerio D’Innocenzo,

Samuel D. Stranks,

Henry J. Snaith,

Annamaria Petrozza

Publication year - 2014

Publication title -

apl materials

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.571

H-Index - 60

ISSN - 2166-532X

DOI - 10.1063/1.4889845

Subject(s) - materials science , photoluminescence , crystallization , perovskite (structure) , crystallite , halide , substrate (aquarium) , porosity , chemical engineering , nanometre , thin film , wetting , mesoporous material , nanotechnology , optoelectronics , composite material , inorganic chemistry , chemistry , catalysis , organic chemistry , oceanography , engineering , geology , metallurgy

We have fabricated CH3NH3PbI3−xClx perovskite thin films crystallized in situ on substrates of different natures (e.g., porosity, wettability) and investigated their photoluminescence properties. We observe that the crystallization time and thin film structure are strongly influenced by the chemical nature and porosity of the substrate. Moreover, we find that the mesoporous scaffold can tune the emissive properties of the semiconducting compound both in terms of spectral region and dynamics. In particular, perovskite crystallites grown in the nanometre size porous scaffold present a shorter-living and blue-shifted emission with respect to the perovskite crystals which are free to grow without any constraints

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