Tunable Broad Light Emission from 3D “Hollow” Bromide Perovskites through Defect Engineering
Abstract
We report hybrid halide perovskites consisting of corner-sharing metal halide octahedra and small cuboctahedral cages filled with counter cations have proven to be prominent candidates for many high-performance optoelectronic devices. The stability limits of their three-dimensional perovskite framework are defined by the size range of the cations present in the cages of the structure. In some cases, the stability of the perovskite-type structure can be extended even when the counterions violate the size and shape requirements, as is the case in the so-called "hollow" perovskites. In this work, we engineered a new family of 3D highly defective yet crystalline "hollow" bromide perovskites with general formula (FA)1-x(en)x(Pb)1-0.7x(Br)3-0.4x (FA = formamidinium (FA+), en = ethylenediammonium (en2+), x = 0-0.44). Pair distribution function analysis shed light on the local structural coherence, revealing a wide distribution of Pb-Pb distances in the crystal structure as a consequence of the Pb/Br-deficient nature and en inclusion in the lattice. By manipulating the number of Pb/Br vacancies, we finely tune the optical properties of the pristine FAPbBr3 by blue shifting the band gap from 2.20 to 2.60 eV for the x = 0.42 en sample. A most unexpected outcome was that at x > 0.33 en incorporation, themore »
- Authors:
-
- Northwestern Univ., Evanston, IL (United States)
- Argonne National Lab. (ANL), Lemont, IL (United States)
- Univ. of California, Santa Barbara, CA (United States)
- Univ. Lille (France)
- Publication Date:
- Research Org.:
- Argonne National Lab. (ANL), Argonne, IL (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES); National Science Foundation (NSF); European Union (EU)
- OSTI Identifier:
- 1864311
- Grant/Contract Number:
- AC02-06CH11357; SC0012541; DMR-1720139; ECCS-1542205; DMR-1720256; 795091; IR-RMN-THC-FR-3050 CNRS
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Journal of the American Chemical Society
- Additional Journal Information:
- Journal Volume: 143; Journal Issue: 18; Journal ID: ISSN 0002-7863
- Publisher:
- American Chemical Society (ACS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; anions; cations; crystal structure; diffraction; perovskites
Citation Formats
Spanopoulos, Ioannis, Hadar, Ido, Ke, Weijun, Guo, Peijun, Mozur, Eve M., Morgan, Emily, Wang, Shuxin, Zheng, Ding, Padgaonkar, Suyog, Manjunatha Reddy, G. N., Weiss, Emily A., Hersam, Mark C., Seshadri, Ram, Schaller, Richard D., and Kanatzidis, Mercouri G. Tunable Broad Light Emission from 3D “Hollow” Bromide Perovskites through Defect Engineering. United States: N. p., 2021.
Web. doi:10.1021/jacs.1c01727.
Spanopoulos, Ioannis, Hadar, Ido, Ke, Weijun, Guo, Peijun, Mozur, Eve M., Morgan, Emily, Wang, Shuxin, Zheng, Ding, Padgaonkar, Suyog, Manjunatha Reddy, G. N., Weiss, Emily A., Hersam, Mark C., Seshadri, Ram, Schaller, Richard D., & Kanatzidis, Mercouri G. Tunable Broad Light Emission from 3D “Hollow” Bromide Perovskites through Defect Engineering. United States. https://doi.org/10.1021/jacs.1c01727
Spanopoulos, Ioannis, Hadar, Ido, Ke, Weijun, Guo, Peijun, Mozur, Eve M., Morgan, Emily, Wang, Shuxin, Zheng, Ding, Padgaonkar, Suyog, Manjunatha Reddy, G. N., Weiss, Emily A., Hersam, Mark C., Seshadri, Ram, Schaller, Richard D., and Kanatzidis, Mercouri G. Tue .
"Tunable Broad Light Emission from 3D “Hollow” Bromide Perovskites through Defect Engineering". United States. https://doi.org/10.1021/jacs.1c01727. https://www.osti.gov/servlets/purl/1864311.
@article{osti_1864311,
title = {Tunable Broad Light Emission from 3D “Hollow” Bromide Perovskites through Defect Engineering},
author = {Spanopoulos, Ioannis and Hadar, Ido and Ke, Weijun and Guo, Peijun and Mozur, Eve M. and Morgan, Emily and Wang, Shuxin and Zheng, Ding and Padgaonkar, Suyog and Manjunatha Reddy, G. N. and Weiss, Emily A. and Hersam, Mark C. and Seshadri, Ram and Schaller, Richard D. and Kanatzidis, Mercouri G.},
abstractNote = {We report hybrid halide perovskites consisting of corner-sharing metal halide octahedra and small cuboctahedral cages filled with counter cations have proven to be prominent candidates for many high-performance optoelectronic devices. The stability limits of their three-dimensional perovskite framework are defined by the size range of the cations present in the cages of the structure. In some cases, the stability of the perovskite-type structure can be extended even when the counterions violate the size and shape requirements, as is the case in the so-called "hollow" perovskites. In this work, we engineered a new family of 3D highly defective yet crystalline "hollow" bromide perovskites with general formula (FA)1-x(en)x(Pb)1-0.7x(Br)3-0.4x (FA = formamidinium (FA+), en = ethylenediammonium (en2+), x = 0-0.44). Pair distribution function analysis shed light on the local structural coherence, revealing a wide distribution of Pb-Pb distances in the crystal structure as a consequence of the Pb/Br-deficient nature and en inclusion in the lattice. By manipulating the number of Pb/Br vacancies, we finely tune the optical properties of the pristine FAPbBr3 by blue shifting the band gap from 2.20 to 2.60 eV for the x = 0.42 en sample. A most unexpected outcome was that at x > 0.33 en incorporation, the material exhibits strong broad light emission (1% photoluminescence quantum yield (PLQY)) that is maintained after exposure to air for more than a year. This is the first example of strong broad light emission from a 3D hybrid halide perovskite, demonstrating that meticulous defect engineering is an excellent tool for customizing the optical properties of these semiconductors.},
doi = {10.1021/jacs.1c01727},
journal = {Journal of the American Chemical Society},
number = 18,
volume = 143,
place = {United States},
year = {Tue Apr 27 00:00:00 EDT 2021},
month = {Tue Apr 27 00:00:00 EDT 2021}
}
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