4,4'-(Anthracene-9,10-diylbis(ethyne-2,1-diyl))bis(1-methyl-1-pyridinium) bismuth iodide (C30H22N2)3Bi4I18 (AEPyBiI) was obtained as a black powder by a very simple route by mixing an acetone solution of BiI3 and an aqueous solution of C30H22N2I2. This novel perovskite is air and water stable and displays a remarkable thermal stability up to nearly 300 °C. The highly conjugated cation C30H22N2 2+ is hydrolytically stable, being nitrogen atoms quaternarized, and this accounts for the insensitivity of the perovskite toward water and atmospheric oxygen under ambient conditions. The cation in aqueous solution is highly fluorescent under UV irradiation (emitting yellow-orange light). AEPyBiI as well is intensely luminescent, its photoluminescence emission being more than 1 order of magnitude greater than that of high-quality InP epilayers. The crystal structure of AEPyBiI was determined using synchrotron radiation single-crystal X-ray diffraction. AEPyBiI was extensively characterized using a wide range of techniques, such as X-ray powder diffraction, diffuse reflectance UV-vis spectroscopy, Fourier transform infrared (FTIR) and Raman spectroscopies, thermogravimetry-differential thermal analysis (TG-DTA), elemental analysis, electrospray ionization mass spectroscopy (ESI-MS), and photoluminescence spectroscopy. AEPyBiI displays a zero-dimensional (0D) perovskite structure in which the inorganic part is constituted by binuclear units consisting of two face-sharing BiI6 octahedra (Bi2I9 3- units). The C30H22N2 2+ cations are stacked along the a-axis direction in a complex motif. Considering its noteworthy light-emitting properties coupled with an easy synthesis and environmental stability, and its composition that does not contain toxic lead or easily oxidable Sn(II), AEPyBiI is a promising candidate for environmentally friendly light-emitting devices.

Synthesis, structure, and characterization of 4,4′-(Anthracene-9,10-diylbis(ethyne-2,1-diyl))bis(1-methyl-1-pyridinium) Bismuth Iodide (C30H22N2)3Bi4I18, an air, water, and thermally stable 0D hybrid Perovskite with high photoluminescence ffficiency / Romagnoli, Lorenza; D'Annibale, Andrea; Blundo, Elena; Polimeni, Antonio; Cassetta, Alberto; Chita, Giuseppe; Panetta, Riccardo; Ciccioli, Andrea; Latini, Alessandro. - In: CRYSTAL GROWTH & DESIGN. - ISSN 1528-7483. - 22:12(2022), pp. 7426-7433. [10.1021/acs.cgd.2c01005]

Synthesis, structure, and characterization of 4,4′-(Anthracene-9,10-diylbis(ethyne-2,1-diyl))bis(1-methyl-1-pyridinium) Bismuth Iodide (C30H22N2)3Bi4I18, an air, water, and thermally stable 0D hybrid Perovskite with high photoluminescence ffficiency

Lorenza Romagnoli
Membro del Collaboration Group
;
Andrea D’Annibale
Membro del Collaboration Group
;
Elena Blundo
Membro del Collaboration Group
;
Antonio Polimeni
Membro del Collaboration Group
;
Riccardo Panetta
Membro del Collaboration Group
;
Andrea Ciccioli
Membro del Collaboration Group
;
Alessandro Latini
Writing – Original Draft Preparation
2022

Abstract

4,4'-(Anthracene-9,10-diylbis(ethyne-2,1-diyl))bis(1-methyl-1-pyridinium) bismuth iodide (C30H22N2)3Bi4I18 (AEPyBiI) was obtained as a black powder by a very simple route by mixing an acetone solution of BiI3 and an aqueous solution of C30H22N2I2. This novel perovskite is air and water stable and displays a remarkable thermal stability up to nearly 300 °C. The highly conjugated cation C30H22N2 2+ is hydrolytically stable, being nitrogen atoms quaternarized, and this accounts for the insensitivity of the perovskite toward water and atmospheric oxygen under ambient conditions. The cation in aqueous solution is highly fluorescent under UV irradiation (emitting yellow-orange light). AEPyBiI as well is intensely luminescent, its photoluminescence emission being more than 1 order of magnitude greater than that of high-quality InP epilayers. The crystal structure of AEPyBiI was determined using synchrotron radiation single-crystal X-ray diffraction. AEPyBiI was extensively characterized using a wide range of techniques, such as X-ray powder diffraction, diffuse reflectance UV-vis spectroscopy, Fourier transform infrared (FTIR) and Raman spectroscopies, thermogravimetry-differential thermal analysis (TG-DTA), elemental analysis, electrospray ionization mass spectroscopy (ESI-MS), and photoluminescence spectroscopy. AEPyBiI displays a zero-dimensional (0D) perovskite structure in which the inorganic part is constituted by binuclear units consisting of two face-sharing BiI6 octahedra (Bi2I9 3- units). The C30H22N2 2+ cations are stacked along the a-axis direction in a complex motif. Considering its noteworthy light-emitting properties coupled with an easy synthesis and environmental stability, and its composition that does not contain toxic lead or easily oxidable Sn(II), AEPyBiI is a promising candidate for environmentally friendly light-emitting devices.
2022
Hybrid perovskites; Anthracene; thermal stability
01 Pubblicazione su rivista::01a Articolo in rivista
Synthesis, structure, and characterization of 4,4′-(Anthracene-9,10-diylbis(ethyne-2,1-diyl))bis(1-methyl-1-pyridinium) Bismuth Iodide (C30H22N2)3Bi4I18, an air, water, and thermally stable 0D hybrid Perovskite with high photoluminescence ffficiency / Romagnoli, Lorenza; D'Annibale, Andrea; Blundo, Elena; Polimeni, Antonio; Cassetta, Alberto; Chita, Giuseppe; Panetta, Riccardo; Ciccioli, Andrea; Latini, Alessandro. - In: CRYSTAL GROWTH & DESIGN. - ISSN 1528-7483. - 22:12(2022), pp. 7426-7433. [10.1021/acs.cgd.2c01005]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/1665094
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