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Synthesis and Physical Properties Characterization of Micro/Nanostructured Semiconducting Materials

Abstract

A considerable effort has been put forward in order to grow semiconducting nanostructured materials. Besides fundamental science, they are very attractive in the opto-electronic industry as well as solar energy conversion due to their unique properties. In this project, we intend to work with two classes of semiconducting materials. (1) organic/inorganic hybrid perovskites of the general formula APbX3, wherein A = Cs or CH3NH3 and X = I, Cl or Br in the form of bulk, thin film, and quantum dots (QDs); (2) and nanostructured transition metal oxides (TMO) of TiO2, ZnO, Fe2O3 grown up on the surface of both microwires and microtubes. Besides studying each of them separated, we intend to grow heterostructures comprised of nanostructured TMO decorated with quantum dots of perovskites. The synthesis of hetero/nanostructured materials and the study of their physical properties have been of great interest in recent years due to numerous technological applications such as photovoltaic devices in solar cell field. Therefore, in this project, we intend to put an effort on synthesis and physical properties characterization of high bandgap perovskites quantum dots and nanostructured TMO. The basic idea is to synthesize zero-dimensional quantum dots APbX3 perovskites and place them on the surface of nanostructured TMO through a dip coating method. A better understanding of structural, morphological, and optoelectronic properties of quantum dots on TMO microtubes will be achieved. We also intend to conduct photodegradation experiments by using the obtained micro/nanostructured semiconducting materials. (AU)

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Scientific publications (10)
(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)
GANHARUL, GRACE KELLY Q.; TOFANELLO, ARYANE; BONADIO, ARIANY; FREITAS, ANDRE L. M.; ESCOTE, MARCIA T.; POLO, ANDRE S.; NANTES-CARDOSO, ISELI L.; SOUZA, JOSE ANTONIO. Disclosing the hidden presence of Ti3+ ions in different TiO2 crystal structures synthesized at low temperature and photocatalytic evaluation by methylene blue photobleaching. Journal of Materials Research, v. 36, n. 16, SI AUG 2021. Web of Science Citations: 0.
BONADIO, A.; SABINO, F. P.; TOFANELLO, A.; FREITAS, A. L. M.; DE PAULA, V. G.; DALPIAN, G. M.; SOUZA, J. A. Tailoring the Optical, Electronic, and Magnetic Properties of MAPbI(3) through Self-Assembled Fe Incorporation. Journal of Physical Chemistry C, v. 125, n. 28, p. 15636-15646, JUL 22 2021. Web of Science Citations: 0.
BONADIO, A.; ESCANHOELA, JR., C. A.; SABINO, F. P.; SOMBRIO, G.; DE PAULA, V. G.; FERREIRA, F. F.; JANOTTI, A.; DALPIAN, G. M.; SOUZA, J. A. Entropy-driven stabilization of the cubic phase of MaPbI(3) at room temperature. JOURNAL OF MATERIALS CHEMISTRY A, v. 9, n. 2, p. 1089-1099, JAN 14 2021. Web of Science Citations: 0.
BRAGA, HELDER M.; FREITAS, ANDRE L. M.; POMAR, CESAR A. D.; SOUZA, JOSE A. Designing a Multifunctional Magnetic Microtube with Enhanced Conductivity through Local Heterojunction Decoration of CsPbBr3 Nanocrystals. Journal of Physical Chemistry C, v. 124, n. 52, p. 28580-28588, DEC 31 2020. Web of Science Citations: 0.
DE PAULA, VINICIUS G.; DE OLIVEIRA, LEONARDO S.; MENDES FILHO, ANIBAL A.; RIOS, CARLOS T.; SOUZA, JOSE A. Thermal annealing influence on structural, magnetic, electronic, and mechanical properties of off-stoichiometric Ni40Cu10Mn35Ti15 all-d-metal Heusler alloy. Journal of Materials Research, v. 35, n. 21, p. 3004-3011, NOV 16 2020. Web of Science Citations: 0.
DE OLIVEIRA, LEONARDO S.; SABINO, FERNANDO P.; DE FLORIO, DANIEL Z.; JANOTTI, ANDERSON; DALPIAN, GUSTAVO M.; SOUZA, JOSE A. Insulator-Metal Transition in the Nd2CoFeO6 Disordered Double Perovskite. Journal of Physical Chemistry C, v. 124, n. 41, p. 22733-22742, OCT 15 2020. Web of Science Citations: 0.
SOMBRIO, G.; ZHANG, Z.; BONADIO, A.; DE OLIVEIRA, L. S.; DE QUEIROZ, T. B.; FERREIRA, F. F.; JANOTTI, A.; SOUZA, J. A. Charge Transport in MAPbI(3) Pellets across the Tetragonal-to-Cubic Phase Transition: The Role of Grain Boundaries from Structural, Electrical, and Optical Characterizations. Journal of Physical Chemistry C, v. 124, n. 20, p. 10793-10803, MAY 21 2020. Web of Science Citations: 0.
GOMEZ, CYNTHIA MARINA; PAN, SHUANG; BRAGA, HELDER MOREIRA; DE OLIVEIRA, LEONARDO SOARES; DALPIAN, GUSTAVO MARTINI; BIESOLD-MCGEE, GILL VINCENT; LIN, ZHIQUN; SANTOS, SYDNEY FERREIRA; SOUZA, JOSE ANTONIO. Possible Charge-Transfer-Induced Conductivity Enhancement in TiO2 Microtubes Decorated with Perovskite CsPbBr3 Nanocrystals. Langmuir, v. 36, n. 19, p. 5408-5416, MAY 19 2020. Web of Science Citations: 0.
BONADIO, A.; DE OLIVEIRA, L. S.; POLO, A. S.; SOUZA, J. A. Liquid water-induced growth of the 1D morphology of CH3NH3PbI3 hybrid perovskites. CrystEngComm, v. 21, n. 48, p. 7365-7372, DEC 28 2019. Web of Science Citations: 0.
DE PAULA, V. G.; DIAZ POMAR, C.; PADILHA, A. C. M.; SOUZA, J. A. Magnetic ordering contribution on diffusion process forming hollow materials. Solid State Ionics, v. 339, OCT 15 2019. Web of Science Citations: 0.

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