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Title: Substitutional Growth of Methylammonium Lead Iodide Perovskites in Alcohols

Abstract

Methylammonium lead iodide (MAPbIx) perovskites are organic-inorganic semiconductors that serve as the light-harvesting component in photovoltaic devices. Their long carrier diffusion lengths yield power conversion efficiencies in excess of 22%. Conventional growth techniques apply spin-coated precursors on an oxide or polymer substrate followed by annealing; however, use of toxic solvents and high temperature hinder device stability and performance. Through a nucleophilic substitutional growth of MAPbIx in polar protic alcohols, we show evidence for their substrate- and annealing- free production. These variable-sized crystals (~100 nm-10 µm) are found to be tetragonally single-phased in alcohols, and precipitated as powders that are metallic-lead-free with a negligibly small amount of unreacted PbI2 (<10%). On the basis of this chemical approach, we obtain chemically stable MAPbIx in air up to ~1.5 months with thermal stability at ≤300°C. This method is amendable for large-area deposition, large-scale manufacturing, and ultimately leads to energy-efficient, low-cost, and stable optoelectronics.

Authors:
 [1];  [2];  [3];  [3];  [3];  [3];  [4];  [5];  [5];  [6]
  1. Center for Nanoscale Materials, Nanoscience and Technology Division, Argonne National Laboratory, Lemont IL 60439 USA
  2. Department of Organic Materials Science, Sandia National Laboratory, Albuquerque NM 87185 USA
  3. Advanced Photon Source, X-Ray Science Division, Argonne National Laboratory, Lemont IL 60439 USA
  4. Materials Science Division, Argonne National Laboratory, Lemont IL 60439 USA
  5. Department of Chemistry, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919 South Korea
  6. Center for Nanoscale Materials, Nanoscience and Technology Division, Argonne National Laboratory, Lemont IL 60439 USA; Institute for Molecular Engineering, University of Chicago, 5640 South Ellis Avenue Chicago IL 60637 USA
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE Office of Science - Office of Basic Energy Sciences - Materials Sciences and Engineering Division; USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1459869
DOE Contract Number:
AC02-06CH11357
Resource Type:
Journal Article
Resource Relation:
Journal Name: Advanced Energy Materials; Journal Volume: 8; Journal Issue: 5
Country of Publication:
United States
Language:
English

Citation Formats

Acik, Muge, Alam, Todd M., Guo, Fangmin, Ren, Yang, Lee, Byeongdu, Rosenberg, Richard A., Mitchell, John F., Park, In Kee, Lee, Geunsik, and Darling, Seth B.. Substitutional Growth of Methylammonium Lead Iodide Perovskites in Alcohols. United States: N. p., 2017. Web. doi:10.1002/aenm.201701726.
Acik, Muge, Alam, Todd M., Guo, Fangmin, Ren, Yang, Lee, Byeongdu, Rosenberg, Richard A., Mitchell, John F., Park, In Kee, Lee, Geunsik, & Darling, Seth B.. Substitutional Growth of Methylammonium Lead Iodide Perovskites in Alcohols. United States. doi:10.1002/aenm.201701726.
Acik, Muge, Alam, Todd M., Guo, Fangmin, Ren, Yang, Lee, Byeongdu, Rosenberg, Richard A., Mitchell, John F., Park, In Kee, Lee, Geunsik, and Darling, Seth B.. Fri . "Substitutional Growth of Methylammonium Lead Iodide Perovskites in Alcohols". United States. doi:10.1002/aenm.201701726.
@article{osti_1459869,
title = {Substitutional Growth of Methylammonium Lead Iodide Perovskites in Alcohols},
author = {Acik, Muge and Alam, Todd M. and Guo, Fangmin and Ren, Yang and Lee, Byeongdu and Rosenberg, Richard A. and Mitchell, John F. and Park, In Kee and Lee, Geunsik and Darling, Seth B.},
abstractNote = {Methylammonium lead iodide (MAPbIx) perovskites are organic-inorganic semiconductors that serve as the light-harvesting component in photovoltaic devices. Their long carrier diffusion lengths yield power conversion efficiencies in excess of 22%. Conventional growth techniques apply spin-coated precursors on an oxide or polymer substrate followed by annealing; however, use of toxic solvents and high temperature hinder device stability and performance. Through a nucleophilic substitutional growth of MAPbIx in polar protic alcohols, we show evidence for their substrate- and annealing- free production. These variable-sized crystals (~100 nm-10 µm) are found to be tetragonally single-phased in alcohols, and precipitated as powders that are metallic-lead-free with a negligibly small amount of unreacted PbI2 (<10%). On the basis of this chemical approach, we obtain chemically stable MAPbIx in air up to ~1.5 months with thermal stability at ≤300°C. This method is amendable for large-area deposition, large-scale manufacturing, and ultimately leads to energy-efficient, low-cost, and stable optoelectronics.},
doi = {10.1002/aenm.201701726},
journal = {Advanced Energy Materials},
number = 5,
volume = 8,
place = {United States},
year = {Fri Sep 29 00:00:00 EDT 2017},
month = {Fri Sep 29 00:00:00 EDT 2017}
}