Study the effect of bismuth on the structural and optical properties of the CsPb1-xBixBr3 perovskite QDs
Juan Pablo Guerrero a, Victor Romero a, Diego Esparza b, Isaac Zarazua c, Haggeo Desirena d, Alejandro Torres-Castro e, Jin Z. Zhang f, Tzarara López-Luke g
a Universidad de Guadalajara, Centro Universitario de Tonalá. División de Ingenierías y Desarrollo Tecnológico. Tonalá Jalisco, C. P. 48525, México
b Universidad Autónoma de Zacatecas, Av. Ramón López Velarde #801, Zacatecas C.P. 98000, México.
c Universidad de Guadalajara, Centro Universitario de los Lagos. Lagos de Moreno, Jalisco C.P. 47460, México
d Nanophotonics and Advanced Materials Group, Centro de Investigaciones en Óptica, A.P 1-948, León Gto. 37150, México
e Facultad de Ingeniería Mecánica y Eléctrica, Universidad Autónoma de Nuevo León, Avenida Universidad s/n, Ciudad Universitaria, CP 66451, San Nicolás de los Garza, Nuevo León, México.
f Department of Chemistry and Biochemistry, University of California, Santa Cruz, CA 95064, USA.
g Instituto de Investigación en Metalurgia y Materiales, Universidad Michoacana de San Nicolás de Hidalgo. Edificio U, Ciudad Universitaria. 58030 Morelia Mich. México.
nanoGe Perovskite Conferences
Proceedings of International Conference on Perovskite Thin Film Photovoltaics and Perovskite Photonics and Optoelectronics (NIPHO20)
Sevilla, Spain, 2020 February 23rd - 25th
Organizer: Hernán Míguez
Poster, Tzarara López-Luke, 053
Publication date: 25th November 2019

Recently, quantum dots of lead halide perovskite such as CH3NH3PbX3 and CsPbX3 (X = Cl, Br, I) have been the focus of research due to their structural and optical characteristics. These materials have a high quantum photoluminescence performance, is possible tunable the absorption varying the halides (X = Cl, Br, I), present a narrow emission wavelength. Also, these materials are produced at low cost. So, they are attractive for applications such as Light Emitting Diodes (LED) and Solar Cells. However, the lead makes it toxic and harmful to the environment. Researchers in the world are trying to synthetize lead free perovskite QDs.

In this work is presented the bismuth effect in the structural and optical properties of the CsPb1-xBixBr3 perovskite QDs. The quantum perovskite dots (CsPb1-xBixBr3) were prepared by hot-Injection method. The Pb was replaced by different concentration of Bi (W%). The CsPb1-xBixBr3 QDs were characterized by XDR, TEM, EDS, XPS, photoluminescence emission and absorption principally. The results promise a new bio-friendly material to be applicated in optoelectronic devices.

We appreciate the support to 2019 UC-MEXUS-CONACyT collaborative grants, and Juan Pablo Guerrero scholarship by CONACyT with CVU number 630842.

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