Peptide‐Passivated Lead Halide Perovskite Nanocrystals Based on Synergistic Effect between Amino and Carboxylic Functional Groups

Luo, Binbin; Naghadeh, Sara Bonabi; Allen, A'Lester; Li, Xueming; Zhang, Jin Z.

doi:10.1002/adfm.201604018

Title: Peptide‐Passivated Lead Halide Perovskite Nanocrystals Based on Synergistic Effect between Amino and Carboxylic Functional Groups

Abstract

A new strategy has been developed using peptides with amino and carboxylic functional groups as passivating ligands to produce methyl ammonium lead bromide (CH ₃ NH ₃ PbBr ₃ ) perovskite nanocrystals (PNCs) with excellent optical properties. The well‐passivated PNCs can only be obtained when both amino and carboxylic groups are involved, and this is attributed to the protonation reaction between NH ₂ and COOH that is essential for successful passivation of the PNCs. To better understand this synergistic effect, peptides with different lengths have been studied and compared. Due to the polar nature of peptides, peptide‐passivated PNCs (denoted as PNCs _peptide ) aggregate and precipitate from nonpolar toluene solvent, resulting in a high product yield (≈44%). Furthermore, the size of PNCs _peptide can be varied from ≈3.9 to 8.6 nm by adjusting the concentration of the peptide, resulting in tunable optical properties due to the quantum confinement effect. In addition, CsPbBr ₃ PNCs are also synthesized with peptides as capping ligands, further demonstrating the generality and versatility of this strategy, which is important for generating high quality PNCs for photonics applications including light‐emitting diodes, optical sensing, and imaging.

Authors:

Luo, Binbin ^[1]; Naghadeh, Sara Bonabi ^[2]; Allen, A'Lester ^[2]; Li, Xueming ^[1]; Zhang, Jin Z. ^[2]

Department of Chemistry and Chemical Engineering Chongqing University Chongqing 400044 China
Department of Chemistry and Biochemistry University of California Santa Cruz CA 95064 USA

Publication Date:: Wed Jan 18 00:00:00 EST 2017

Sponsoring Org.:: USDOE

OSTI Identifier:: 1401507

Grant/Contract Number:: DE‐AC02‐05CH11231

Resource Type:: Publisher's Accepted Manuscript

Journal Name:: Advanced Functional Materials

Additional Journal Information:: Journal Name: Advanced Functional Materials Journal Volume: 27 Journal Issue: 6; Journal ID: ISSN 1616-301X

Publisher:: Wiley Blackwell (John Wiley & Sons)

Country of Publication:: Germany

Language:: English

Citation Formats


                    Luo, Binbin, Naghadeh, Sara Bonabi, Allen, A'Lester, Li, Xueming, and Zhang, Jin Z. Peptide‐Passivated Lead Halide Perovskite Nanocrystals Based on Synergistic Effect between Amino and Carboxylic Functional Groups.  Germany: N. p., 2017. 
Web.  doi:10.1002/adfm.201604018.

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                    Luo, Binbin, Naghadeh, Sara Bonabi, Allen, A'Lester, Li, Xueming, & Zhang, Jin Z. Peptide‐Passivated Lead Halide Perovskite Nanocrystals Based on Synergistic Effect between Amino and Carboxylic Functional Groups.  Germany.  https://doi.org/10.1002/adfm.201604018

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                    Luo, Binbin, Naghadeh, Sara Bonabi, Allen, A'Lester, Li, Xueming, and Zhang, Jin Z. Wed .  
"Peptide‐Passivated Lead Halide Perovskite Nanocrystals Based on Synergistic Effect between Amino and Carboxylic Functional Groups".  Germany.  https://doi.org/10.1002/adfm.201604018.

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@article{osti_1401507,

  title        = {Peptide‐Passivated Lead Halide Perovskite Nanocrystals Based on Synergistic Effect between Amino and Carboxylic Functional Groups},

  author       = {Luo, Binbin and Naghadeh, Sara Bonabi and Allen, A'Lester and Li, Xueming and Zhang, Jin Z.},

  abstractNote = {A new strategy has been developed using peptides with amino and carboxylic functional groups as passivating ligands to produce methyl ammonium lead bromide (CH 3 NH 3 PbBr 3 ) perovskite nanocrystals (PNCs) with excellent optical properties. The well‐passivated PNCs can only be obtained when both amino and carboxylic groups are involved, and this is attributed to the protonation reaction between NH 2 and COOH that is essential for successful passivation of the PNCs. To better understand this synergistic effect, peptides with different lengths have been studied and compared. Due to the polar nature of peptides, peptide‐passivated PNCs (denoted as PNCs peptide ) aggregate and precipitate from nonpolar toluene solvent, resulting in a high product yield (≈44%). Furthermore, the size of PNCs peptide can be varied from ≈3.9 to 8.6 nm by adjusting the concentration of the peptide, resulting in tunable optical properties due to the quantum confinement effect. In addition, CsPbBr 3 PNCs are also synthesized with peptides as capping ligands, further demonstrating the generality and versatility of this strategy, which is important for generating high quality PNCs for photonics applications including light‐emitting diodes, optical sensing, and imaging.},

  doi          = {10.1002/adfm.201604018},

  journal      = {Advanced Functional Materials},

  number       = 6,

  volume       = 27,

  place        = {Germany},

  year         = {Wed Jan 18 00:00:00 EST 2017},

  month        = {Wed Jan 18 00:00:00 EST 2017}

}

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Title: Peptide‐Passivated Lead Halide Perovskite Nanocrystals Based on Synergistic Effect between Amino and Carboxylic Functional Groups

Abstract

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