Crystallization Kinetics of Organic–Inorganic Trihalide Perovskites and the Role of the Lead Anion in Crystal Growth

Handle URI:
http://hdl.handle.net/10754/597910
Title:
Crystallization Kinetics of Organic–Inorganic Trihalide Perovskites and the Role of the Lead Anion in Crystal Growth
Authors:
Moore, David T.; Sai, Hiroaki; Tan, Kwan W.; Smilgies, Detlef-M.; Zhang, Wei; Snaith, Henry J.; Wiesner, Ulrich; Estroff, Lara A.
Abstract:
© 2015 American Chemical Society. Methylammonium lead halide perovskite solar cells continue to excite the research community due to their rapidly increasing performance which, in large part, is due to improvements in film morphology. The next step in this progression is control of the crystal morphology which requires a better fundamental understanding of the crystal growth. In this study we use in situ X-ray scattering data to study isothermal transformations of perovskite films derived from chloride, iodide, nitrate, and acetate lead salts. Using established models we determine the activation energy for crystallization and find that it changes as a function of the lead salt. Further analysis enabled determination of the precursor composition and showed that the primary step in perovskite formation is removal of excess organic salt from the precursor. This understanding suggests that careful choice of the lead salt will aid in controlling crystal growth, leading to superior films and better performing solar cells.
Citation:
Moore DT, Sai H, Tan KW, Smilgies D-M, Zhang W, et al. (2015) Crystallization Kinetics of Organic–Inorganic Trihalide Perovskites and the Role of the Lead Anion in Crystal Growth. Journal of the American Chemical Society 137: 2350–2358. Available: http://dx.doi.org/10.1021/ja512117e.
Publisher:
American Chemical Society (ACS)
Journal:
Journal of the American Chemical Society
KAUST Grant Number:
KUS-C1-018-02
Issue Date:
18-Feb-2015
DOI:
10.1021/ja512117e
PubMed ID:
25625616
Type:
Article
ISSN:
0002-7863; 1520-5126
Sponsors:
The authors acknowledge financial support from the U.S. Department of Energy, Office of Science, Basic Energy Sciences, under Award DE-SC0010560. K.W.T. gratefully acknowledges the Singapore Energy Innovation Program Office for a National Research Foundation graduate fellowship. This work made use of the research facilities of the Cornell Center for Materials Research (CCMR) with support from the NSF Materials Research Science and Engineering Centers (MRSEC) program (DMR-1120296), Cornell High Energy Synchrotron Source (CHESS) which is supported by the NSF and the NIH/National Institute of General Medical Sciences under NSF awards DMR-0936384 and DMR-1332208, and the KAUST-Cornell Center for Energy and Sustainability supported by Award KUS-C1-018-02, made by King Abdullah University of Science and Technology (KAUST). W.Z. and H.J.S thank the EPSRC Supergen, ERC Hyper Project, for financial support. The authors acknowledge the use of Fit2D for WAXS data analysis and thank the author, A. P. Hammersley, and ESRF, for its development and free use. The authors gratefully acknowledge T. Scott, M. Koker, and R. Li of Cornell University for kind experimental assistance.
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Full metadata record

DC FieldValue Language
dc.contributor.authorMoore, David T.en
dc.contributor.authorSai, Hiroakien
dc.contributor.authorTan, Kwan W.en
dc.contributor.authorSmilgies, Detlef-M.en
dc.contributor.authorZhang, Weien
dc.contributor.authorSnaith, Henry J.en
dc.contributor.authorWiesner, Ulrichen
dc.contributor.authorEstroff, Lara A.en
dc.date.accessioned2016-02-25T12:58:44Zen
dc.date.available2016-02-25T12:58:44Zen
dc.date.issued2015-02-18en
dc.identifier.citationMoore DT, Sai H, Tan KW, Smilgies D-M, Zhang W, et al. (2015) Crystallization Kinetics of Organic–Inorganic Trihalide Perovskites and the Role of the Lead Anion in Crystal Growth. Journal of the American Chemical Society 137: 2350–2358. Available: http://dx.doi.org/10.1021/ja512117e.en
dc.identifier.issn0002-7863en
dc.identifier.issn1520-5126en
dc.identifier.pmid25625616en
dc.identifier.doi10.1021/ja512117een
dc.identifier.urihttp://hdl.handle.net/10754/597910en
dc.description.abstract© 2015 American Chemical Society. Methylammonium lead halide perovskite solar cells continue to excite the research community due to their rapidly increasing performance which, in large part, is due to improvements in film morphology. The next step in this progression is control of the crystal morphology which requires a better fundamental understanding of the crystal growth. In this study we use in situ X-ray scattering data to study isothermal transformations of perovskite films derived from chloride, iodide, nitrate, and acetate lead salts. Using established models we determine the activation energy for crystallization and find that it changes as a function of the lead salt. Further analysis enabled determination of the precursor composition and showed that the primary step in perovskite formation is removal of excess organic salt from the precursor. This understanding suggests that careful choice of the lead salt will aid in controlling crystal growth, leading to superior films and better performing solar cells.en
dc.description.sponsorshipThe authors acknowledge financial support from the U.S. Department of Energy, Office of Science, Basic Energy Sciences, under Award DE-SC0010560. K.W.T. gratefully acknowledges the Singapore Energy Innovation Program Office for a National Research Foundation graduate fellowship. This work made use of the research facilities of the Cornell Center for Materials Research (CCMR) with support from the NSF Materials Research Science and Engineering Centers (MRSEC) program (DMR-1120296), Cornell High Energy Synchrotron Source (CHESS) which is supported by the NSF and the NIH/National Institute of General Medical Sciences under NSF awards DMR-0936384 and DMR-1332208, and the KAUST-Cornell Center for Energy and Sustainability supported by Award KUS-C1-018-02, made by King Abdullah University of Science and Technology (KAUST). W.Z. and H.J.S thank the EPSRC Supergen, ERC Hyper Project, for financial support. The authors acknowledge the use of Fit2D for WAXS data analysis and thank the author, A. P. Hammersley, and ESRF, for its development and free use. The authors gratefully acknowledge T. Scott, M. Koker, and R. Li of Cornell University for kind experimental assistance.en
dc.publisherAmerican Chemical Society (ACS)en
dc.titleCrystallization Kinetics of Organic–Inorganic Trihalide Perovskites and the Role of the Lead Anion in Crystal Growthen
dc.typeArticleen
dc.identifier.journalJournal of the American Chemical Societyen
dc.contributor.institutionCornell University, Ithaca, United Statesen
dc.contributor.institutionCornell High Energy Synchrotron Source (CHESS), Ithaca, United Statesen
dc.contributor.institutionUniversity of Oxford, Oxford, United Kingdomen
kaust.grant.numberKUS-C1-018-02en

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