Synthetic Control of the Photoluminescence Stability of Organolead Halide Perovskites

Freppon, Daniel J.; Men, Long; Bhattacharjee, Ujjal; Rosales, Bryan A.; Zhu, Feng; Petrich, Jacob W.; Smith, Emily A.; Vela, Javier

doi:10.29356/jmcs.v63i3.623

Title: Synthetic Control of the Photoluminescence Stability of Organolead Halide Perovskites

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Abstract

An optimized synthetic procedure for preparing photostable nanocrystalline methylammonium lead halide materials is reported. The procedure was developed by adjusting the lead halide to methylammonium/octylammonium halide precursor ratio. At a high precursor ratio (1:3), a blue-shifted photoinduced luminescence peak is measured at 642 nm for CH₃NH₃PbI₃ with 0.01 to 12 mJ pulsed-laser irradiation. The appearance of this peak is reversible over 300 min upon blocking the irradiation. In order to determine if the peak is the result of a phase change, in situ x-ray diffraction measurements were performed. No phase change was measured with an irradiance that causes the appearance of the photoinduced luminescence peak. Luminescence microscpectroscopy measurements showed that the use of a lower precursor ratio (1:1.5) produces CH₃NH₃PbI₃ and CH₃NH₃PbBr₃ perovskites that are stable over 4 min of illumination. Given the lack of a measured phase change, and the dependence on the precursor ratio, the photoinduced luminesce peak may derive from surface trap states. Finally, the enhanced photostability of the resulting perovskite nanocrystals produced with the optimized synthetic procedure supports their use in stable optoelectronic devices.

Authors:

Freppon, Daniel J. ^[1]; Men, Long ^[1]; Bhattacharjee, Ujjal ^[1]; Rosales, Bryan A. ^[2]; Zhu, Feng ^[2]; Petrich, Jacob W. ^[1]; Smith, Emily A. ^[1];

^[1]

Ames Lab., and Iowa State Univ., Ames, IA (United States). Dept. of Chemistry
Iowa State Univ., Ames, IA (United States). Dept. of Chemistry

Publication Date:: 2019-10-17

Research Org.:: Ames Lab., Ames, IA (United States)

Sponsoring Org.:: USDOE Office of Science (SC), Basic Energy Sciences (BES). Chemical Sciences, Geosciences, and Biosciences Division

OSTI Identifier:: 1573237

Report Number(s):: IS-J 10069
Journal ID: ISSN 1870-249X

Grant/Contract Number:: AC02-07CH11358

Resource Type:: Accepted Manuscript

Journal Name:: Journal of the Mexican Chemical Society

Additional Journal Information:: Journal Volume: 63; Journal Issue: 3; Journal ID: ISSN 1870-249X

Publisher:: Sociedad Quimica de Mexico, A.C.

Country of Publication:: United States

Language:: English

Subject:: 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; surface traps; nanocrystalline perovskites; photostability; single nanocrystal analysis; synthetic optimization; optoelectronics

Citation Formats


                    Freppon, Daniel J., Men, Long, Bhattacharjee, Ujjal, Rosales, Bryan A., Zhu, Feng, Petrich, Jacob W., Smith, Emily A., and Vela, Javier. Synthetic Control of the Photoluminescence Stability of Organolead Halide Perovskites.  United States: N. p., 2019. 
Web.  doi:10.29356/jmcs.v63i3.623.

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                    Freppon, Daniel J., Men, Long, Bhattacharjee, Ujjal, Rosales, Bryan A., Zhu, Feng, Petrich, Jacob W., Smith, Emily A., & Vela, Javier. Synthetic Control of the Photoluminescence Stability of Organolead Halide Perovskites.  United States.  https://doi.org/10.29356/jmcs.v63i3.623

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                    Freppon, Daniel J., Men, Long, Bhattacharjee, Ujjal, Rosales, Bryan A., Zhu, Feng, Petrich, Jacob W., Smith, Emily A., and Vela, Javier. Thu .  
"Synthetic Control of the Photoluminescence Stability of Organolead Halide Perovskites".  United States.  https://doi.org/10.29356/jmcs.v63i3.623.  https://www.osti.gov/servlets/purl/1573237.

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@article{osti_1573237,

  title        = {Synthetic Control of the Photoluminescence Stability of Organolead Halide Perovskites},

  author       = {Freppon, Daniel J. and Men, Long and Bhattacharjee, Ujjal and Rosales, Bryan A. and Zhu, Feng and Petrich, Jacob W. and Smith, Emily A. and Vela, Javier},

  abstractNote = {An optimized synthetic procedure for preparing photostable nanocrystalline methylammonium lead halide materials is reported. The procedure was developed by adjusting the lead halide to methylammonium/octylammonium halide precursor ratio. At a high precursor ratio (1:3), a blue-shifted photoinduced luminescence peak is measured at 642 nm for CH3NH3PbI3 with 0.01 to 12 mJ pulsed-laser irradiation. The appearance of this peak is reversible over 300 min upon blocking the irradiation. In order to determine if the peak is the result of a phase change, in situ x-ray diffraction measurements were performed. No phase change was measured with an irradiance that causes the appearance of the photoinduced luminescence peak. Luminescence microscpectroscopy measurements showed that the use of a lower precursor ratio (1:1.5) produces CH3NH3PbI3 and CH3NH3PbBr3 perovskites that are stable over 4 min of illumination. Given the lack of a measured phase change, and the dependence on the precursor ratio, the photoinduced luminesce peak may derive from surface trap states. Finally, the enhanced photostability of the resulting perovskite nanocrystals produced with the optimized synthetic procedure supports their use in stable optoelectronic devices.},

  doi          = {10.29356/jmcs.v63i3.623},

  journal      = {Journal of the Mexican Chemical Society},

  number       = 3,

  volume       = 63,

  place        = {United States},

  year         = {2019},

  month        = {10}

}

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