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In situ experiments with synchrotron based SAXS and WAXS to probe reactions and formation mechanisms of trending (nanostructured) lead halide materials

Grant number: 19/25765-6
Support Opportunities:Scholarships in Brazil - Doctorate
Effective date (Start): March 01, 2020
Effective date (End): April 30, 2023
Field of knowledge:Physical Sciences and Mathematics - Chemistry - Inorganic Chemistry
Principal Investigator:Ana Flávia Nogueira
Grantee:Raphael Fernando Moral
Host Institution: Instituto de Química (IQ). Universidade Estadual de Campinas (UNICAMP). Campinas , SP, Brazil
Host Company:Universidade Estadual de Campinas (UNICAMP). Instituto de Química (IQ)
Associated research grant:17/11986-5 - Generation and storage of New Energy: bringing technological development for the country, AP.PCPE


Lead halide-based materials, especially perovskites, have been of great interest for applications in optoelectronic devices. What brought such notoriety to perovskites was the rapid increase in efficiency of photovoltaic devices whose active layers are made of these materials. As a result, analogue materials have become equally important.However, among the vast collection of works published with these materials, little is known about their nucleation and growth mechanisms, especially in the early stages of their formation. In order to elucidate this growth dynamics and provide more accurate information to the scientific community, the purpose of this work is to study the synthesis reactions of lead halide perovskites and their analogues in situ with the new beamline at Sirius, Sagui. These in situ experiments will provide kinetic and thermodynamic data at all reaction stages, corroborating the better control and processing of these materials for future applications in optoelectronic devices. (AU)

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Scientific publications (8)
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
RAPHAEL F. MORAL; ALDEN B. HERMSDORFF; PAULO E. MARCHEZI; JOSÉ C. GERMINO; LUIZ G. BONATO; FRANCINEIDE L. DE ARAÚJO; ANA F. NOGUEIRA. Addition of N-(2-Aminoethyl)naphthalimide and Mercaptopropionic Acid to Increase the Stability of CsFAMA Perovskite Solar Cells. Journal of the Brazilian Chemical Society, v. 33, n. 8, p. 997-1007, . (21/13262-0, 20/14451-8, 17/11986-5, 19/25765-6)
KODALLE, TIM; MORAL, RAPHAEL F.; SCALON, LUCAS; SZOSTAK, RODRIGO; ABDELSAMIE, MAGED; MARCHEZI, PAULO E.; NOGUEIRA, ANA F.; SUTTER-FELLA, CAROLIN M.. Revealing the Transient Formation Dynamics and Optoelectronic Properties of 2D Ruddlesden-Popper Phases on 3D Perovskites. ADVANCED ENERGY MATERIALS, v. N/A, p. 14-pg., . (21/01357-6, 17/11986-5, 19/25765-6, 17/12582-5)
DA SILVA, JEANN CARLOS; DE ARAUJO, FRANCINEIDE LOPES; SZOSTAK, RODRIGO; MARCHEZI, PAULO ERNESTO; MORAL, RAPHAEL FERNANDO; DE FREITAS, JILIAN NEI; NOGUEIRA, ANA FLAVIA. Effect of the incorporation of poly(ethylene oxide) copolymer on the stability of perovskite solar cells. JOURNAL OF MATERIALS CHEMISTRY C, v. 8, n. 28, p. 9697-9706, . (19/25765-6, 17/11986-5, 17/12582-5)
GERMINO, JOSE CARLOS; SZOSTAK, RODRIGO; MOTTI, SILVIA G.; MORAL, RAPHAEL F.; MARCHEZI, PAULO E.; SELEGHINI, HEITOR S.; BONATO, LUIZ G.; DE ARAUJO, FRANCINEIDE LOPES; ATVARS, TERESA D. Z.; HERZ, LAURA M.; et al. Postpassivation of Multication Perovskite with Rubidium Butyrate. ACS PHOTONICS, v. 7, n. 8, p. 2282-2291, . (18/25801-0, 17/11986-5, 19/25765-6, 17/12582-5)
DE HOLANDA, MATHEUS S.; MORAL, RAPHAEL F.; MARCHEZI, PAULO E.; MARQUES, FRANCISCO C.; NOGUEIRA, ANA FLAVIA. Layered metal halide perovskite solar cells: A review from structure-properties perspective towards maximization of their performance and stability. ECOMAT, . (17/11986-5, 19/25765-6)
MORAL, RAPHAEL F.; GERMINO, JOSE C.; BONATO, LUIZ G.; ALMEIDA, DIOGO B.; THEREZIO, ERALCI M.; ATVARS, TERESA D. Z.; STRANKS, SAMUEL D.; NOME, RENE A.; NOGUEIRA, ANA F.. Influence of the Vibrational Modes from the Organic Moieties in 2D Lead Halides on Excitonic Recombination and Phase Transition. ADVANCED OPTICAL MATERIALS, v. 8, n. 24, . (19/25765-6, 17/11986-5, 13/16245-2, 19/22576-8)
BONATO, LUIZ GUSTAVO; DAL POGGETTO, GUILHERME; MORAL, RAPHAEL FERNANDO; DE CARVALHO VALE, BRENER RODRIGO; GERMINO, JOSE CARLOS; ALMEIDA, DIOGO BURIGO; SANTIAGO, PATRICIA; FERNANDEZ, PABLO SEBASTIAN; TORMENA, CLAUDIO FRANCISCO; PADILHA, LAZARO A.; et al. Photostability of amine-free CsPbBr3 perovskite nanocrystals under continuous UV illumination. JOURNAL OF MATERIALS CHEMISTRY C, v. 11, n. 24, p. 12-pg., . (20/10246-0, 21/13262-0, 17/11986-5, 20/16077-6, 18/15574-6, 19/22576-8, 19/25765-6, 20/04431-0)
GUAITA, MARIA G. D.; SZOSTAK, RODRIGO; DA SILVA, FRANCISCO M. C.; DE MORAIS, ANDREIA; MORAL, RAPHAEL F.; KODALLE, TIM; TEIXEIRA, VERONICA C.; SUTTER-FELLA, CAROLIN M.; TOLENTINO, HELIO C. N.; NOGUEIRA, ANA F.. Influence of Methylammonium Chloride on Wide-Bandgap Halide Perovskites Films for Solar Cells. ADVANCED FUNCTIONAL MATERIALS, v. N/A, p. 11-pg., . (17/11986-5, 21/01357-6, 19/25765-6)
Academic Publications
(References retrieved automatically from State of São Paulo Research Institutions)
MORAL, Raphael Fernando. Técnicas espectroscópicas e de raios X para elucidação de propriedades fundamentais de perovskitas nanoestruturadas e bidimensionais. 2023. Doctoral Thesis - Universidade Estadual de Campinas (UNICAMP). Instituto de Química Campinas, SP.

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