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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Synthesis of Polycrystalline Ruddlesden-Popper Organic Lead Halides and Their Growth Dynamics

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Moral, Raphael F. [1] ; Bonato, Luiz Gustavo [1] ; Germino, Jose Carlos [1] ; Coelho Oliveira, Willian Xerxes [2, 1] ; Kamat, Rupini [3, 4] ; Xu, Junwei [3] ; Tassone, Christopher J. [3] ; Stranks, Samuel D. [5] ; Toney, Michael F. [3] ; Nogueira, Ana Flavia [1]
Total Authors: 10
[1] Univ Estadual Campinas, Inst Chem, Lab Nanotecnol & Energia Solar, BR-13083970 Campinas, SP - Brazil
[2] Univ Fed Minas Gerais, Inst Ciencias Exatas, Dept Quim, BR-31270901 Belo Horizonte, MG - Brazil
[3] SLAG Natl Accelerator Lab, Stanford Synchrotron Radiat Lightsource, Menlo Pk, CA 94025 - USA
[4] Stanford Univ, Dept Appl Phys, Stanford, CA 94305 - USA
[5] Univ Cambridge, Cavendish Lab, 19 JJ Thomson Ave, Cambridge CB0 0HE - England
Total Affiliations: 5
Document type: Journal article
Source: CHEMISTRY OF MATERIALS; v. 31, n. 22, p. 9472-9479, NOV 26 2019.
Web of Science Citations: 1

Ruddlesden-Popper organic lead halides (RPOLHs) are in the material science spotlight because of their remarkable optoelectronic properties, tailorable compositions, and improved ambient stability over their three-dimensional perovskite analogues. In this report, we introduce a new synthesis method for RPOLHs with general composition L-2{[}FAPbI(3)](n-1)PbI4 {[}L = butylammonium (BA) or benzylammonium (BZA), FA = formamidinium, and n = 1 and 2]. Our method yields polycrystalline materials useful for thin-film fabrication for optoelectronic applications. Furthermore, we report the growth dynamics of BA(2){[}FAPbI(3)]PbI4 using in situ small-angle X-ray scattering, revealing that the slabs grow within the first seconds of the reaction and then self-assemble into bulk crystallites. (AU)

FAPESP's process: 17/11019-5 - Cs-based lead perovskite nanocrystals nucleation and growth studies via in situ SAXS and WAXS.
Grantee:Raphael Fernando Moral
Support type: Scholarships abroad - Research Internship - Master's degree
FAPESP's process: 17/11986-5 - Research Division 1 - dense energy carriers
Grantee:Ana Flávia Nogueira
Support type: Research Grants - Research Centers in Engineering Program
FAPESP's process: 16/02268-9 - Hybrid nanocomposites composed of cesium lead-halide perovskite quantum dots and semiconducting polymers for third generation solar cells
Grantee:Raphael Fernando Moral
Support type: Scholarships in Brazil - Master