Determination of the True Lateral Grain Size in Organic–Inorganic Halide Perovskite Thin Films
Abstract
Here, methylammonium lead iodide (MAPbI3) thin films were examined via piezoresponse force microscopy (PFM) and nanoindentation (NI) to determine if long-range atomic order existed across the full width and depth of the apparent grains. And from the PFM, the piezoelectric response of the films was strongly correlated with low-index planes of the crystal structure and ferroelastic domains in macroscale solution-grown MAPbI3 crystals, which implied long-range order near the top surface. From the NI, it was found that the induced cracks were straight and extended across the full width of the apparent grains, which indicated that the long-range order was not limited to the near-surface region, but extended through the film thickness. Interestingly, the two MAPbI3 processes examined resulted in subtle differences in the extracted electro-mechanical and fracture properties, but exhibited similar power conversion efficiencies of >17% in completed devices.
- Authors:
-
[3];
[1]
- National Inst. of Standards and Technology (NIST), Boulder, CO (United States). Material Measurement Lab.
- Univ. of Colorado, Boulder, CO (United States). Dept. of Mechanical Engineering
- National Renewable Energy Lab. (NREL), Golden, CO (United States). Chemistry and Nanoscience Center
- Univ. of Colorado, Boulder, CO (United States). Dept. of Mechanical Engineering, Materials Science Program
- Publication Date:
- Research Org.:
- National Renewable Energy Lab. (NREL), Golden, CO (United States)
- Sponsoring Org.:
- USDOE Office of Energy Efficiency and Renewable Energy (EERE), Renewable Power Office. Solar Energy Technologies Office; National Institutes of Health (NIH); National Science Foundation (NSF)
- OSTI Identifier:
- 1395493
- Report Number(s):
- NREL/JA-5K00-70187
Journal ID: ISSN 1944-8244; TRN: US1702021
- Grant/Contract Number:
- AC36-08GO28308; T32AG000279; 1338154
- Resource Type:
- Accepted Manuscript
- Journal Name:
- ACS Applied Materials and Interfaces
- Additional Journal Information:
- Journal Volume: 9; Journal Issue: 39; Journal ID: ISSN 1944-8244
- Publisher:
- American Chemical Society (ACS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 14 SOLAR ENERGY; 36 MATERIALS SCIENCE; ferroelastic domains; grain size; nanoindentation; perovskites; photovoltaic devices; piezoresponse force microscopy
Citation Formats
MacDonald, Gordon A., Heveran, Chelsea M., Yang, Mengjin, Moore, David, Zhu, Kai, Ferguson, Virginia L., Killgore, Jason P., and DelRio, Frank W. Determination of the True Lateral Grain Size in Organic–Inorganic Halide Perovskite Thin Films. United States: N. p., 2017.
Web. doi:10.1021/acsami.7b11434.
MacDonald, Gordon A., Heveran, Chelsea M., Yang, Mengjin, Moore, David, Zhu, Kai, Ferguson, Virginia L., Killgore, Jason P., & DelRio, Frank W. Determination of the True Lateral Grain Size in Organic–Inorganic Halide Perovskite Thin Films. United States. https://doi.org/10.1021/acsami.7b11434
MacDonald, Gordon A., Heveran, Chelsea M., Yang, Mengjin, Moore, David, Zhu, Kai, Ferguson, Virginia L., Killgore, Jason P., and DelRio, Frank W. Fri .
"Determination of the True Lateral Grain Size in Organic–Inorganic Halide Perovskite Thin Films". United States. https://doi.org/10.1021/acsami.7b11434. https://www.osti.gov/servlets/purl/1395493.
@article{osti_1395493,
title = {Determination of the True Lateral Grain Size in Organic–Inorganic Halide Perovskite Thin Films},
author = {MacDonald, Gordon A. and Heveran, Chelsea M. and Yang, Mengjin and Moore, David and Zhu, Kai and Ferguson, Virginia L. and Killgore, Jason P. and DelRio, Frank W.},
abstractNote = {Here, methylammonium lead iodide (MAPbI3) thin films were examined via piezoresponse force microscopy (PFM) and nanoindentation (NI) to determine if long-range atomic order existed across the full width and depth of the apparent grains. And from the PFM, the piezoelectric response of the films was strongly correlated with low-index planes of the crystal structure and ferroelastic domains in macroscale solution-grown MAPbI3 crystals, which implied long-range order near the top surface. From the NI, it was found that the induced cracks were straight and extended across the full width of the apparent grains, which indicated that the long-range order was not limited to the near-surface region, but extended through the film thickness. Interestingly, the two MAPbI3 processes examined resulted in subtle differences in the extracted electro-mechanical and fracture properties, but exhibited similar power conversion efficiencies of >17% in completed devices.},
doi = {10.1021/acsami.7b11434},
journal = {ACS Applied Materials and Interfaces},
number = 39,
volume = 9,
place = {United States},
year = {Fri Sep 15 00:00:00 EDT 2017},
month = {Fri Sep 15 00:00:00 EDT 2017}
}
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