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Title: Polyvinylpyrrolidone-induced anisotropic growth of gold nanoprisms in plasmon-driven synthesis

Abstract

After more than a decade, it is still unknown whether the plasmon-mediated growth of silver nanostructures can be extended to the synthesis of other noble metals, as the molecular mechanisms governing the growth process remain elusive. Herein, we demonstrate the plasmon-driven synthesis of gold nanoprisms and elucidate the details of the photochemical growth mechanism at the single-nanoparticle level. Our investigation reveals that the surfactant polyvinylpyrrolidone preferentially adsorbs along the nanoprism perimeter and serves as a photochemical relay to direct the anisotropic growth of gold nanoprisms. This discovery confers a unique function to polyvinylpyrrolidone that is fundamentally diferent from its widely accepted role as a crystal-face-blocking ligand. Additionally, we find that nanocrystal twinning exerts a profound influence on the kinetics of this photochemical process by controlling the transport of plasmon-generated hot electrons to polyvinylpyrrolidone. These insights establish a molecular-level description of the underlying mechanisms regulating the plasmon-driven synthesis of gold nanoprisms.

Authors:
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Publication Date:
Research Org.:
Pacific Northwest National Laboratory (PNNL), Richland, WA (US), Environmental Molecular Sciences Laboratory (EMSL)
Sponsoring Org.:
USDOE
OSTI Identifier:
1290403
Report Number(s):
PNNL-SA-107281
Journal ID: ISSN 1476-1122; 40065; KP1704020
DOE Contract Number:  
AC05-76RL01830
Resource Type:
Journal Article
Resource Relation:
Journal Name: Nature Materials; Journal Volume: 15; Journal Issue: 8
Country of Publication:
United States
Language:
English
Subject:
Plasmon; gold; nanoprisms; photocatalysis; silver; nanocrystal; photochemistry; Environmental Molecular Sciences Laboratory

Citation Formats

Zhai, Yueming, DuChene, Joseph S., Wang, Yi-Chung, Qiu, Jingjing, Johnston-Peck, Aaron C., You, Bo, Guo, Wenxiao, DiCiaccio, Benedetto, Qian, Kun, Zhao, Evan W., Ooi, Frances, Hu, Dehong, Su, Dong, Stach, Eric A., Zhu, Zihua, and Wei, Wei David. Polyvinylpyrrolidone-induced anisotropic growth of gold nanoprisms in plasmon-driven synthesis. United States: N. p., 2016. Web. doi:10.1038/nmat4683.
Zhai, Yueming, DuChene, Joseph S., Wang, Yi-Chung, Qiu, Jingjing, Johnston-Peck, Aaron C., You, Bo, Guo, Wenxiao, DiCiaccio, Benedetto, Qian, Kun, Zhao, Evan W., Ooi, Frances, Hu, Dehong, Su, Dong, Stach, Eric A., Zhu, Zihua, & Wei, Wei David. Polyvinylpyrrolidone-induced anisotropic growth of gold nanoprisms in plasmon-driven synthesis. United States. doi:10.1038/nmat4683.
Zhai, Yueming, DuChene, Joseph S., Wang, Yi-Chung, Qiu, Jingjing, Johnston-Peck, Aaron C., You, Bo, Guo, Wenxiao, DiCiaccio, Benedetto, Qian, Kun, Zhao, Evan W., Ooi, Frances, Hu, Dehong, Su, Dong, Stach, Eric A., Zhu, Zihua, and Wei, Wei David. Mon . "Polyvinylpyrrolidone-induced anisotropic growth of gold nanoprisms in plasmon-driven synthesis". United States. doi:10.1038/nmat4683.
@article{osti_1290403,
title = {Polyvinylpyrrolidone-induced anisotropic growth of gold nanoprisms in plasmon-driven synthesis},
author = {Zhai, Yueming and DuChene, Joseph S. and Wang, Yi-Chung and Qiu, Jingjing and Johnston-Peck, Aaron C. and You, Bo and Guo, Wenxiao and DiCiaccio, Benedetto and Qian, Kun and Zhao, Evan W. and Ooi, Frances and Hu, Dehong and Su, Dong and Stach, Eric A. and Zhu, Zihua and Wei, Wei David},
abstractNote = {After more than a decade, it is still unknown whether the plasmon-mediated growth of silver nanostructures can be extended to the synthesis of other noble metals, as the molecular mechanisms governing the growth process remain elusive. Herein, we demonstrate the plasmon-driven synthesis of gold nanoprisms and elucidate the details of the photochemical growth mechanism at the single-nanoparticle level. Our investigation reveals that the surfactant polyvinylpyrrolidone preferentially adsorbs along the nanoprism perimeter and serves as a photochemical relay to direct the anisotropic growth of gold nanoprisms. This discovery confers a unique function to polyvinylpyrrolidone that is fundamentally diferent from its widely accepted role as a crystal-face-blocking ligand. Additionally, we find that nanocrystal twinning exerts a profound influence on the kinetics of this photochemical process by controlling the transport of plasmon-generated hot electrons to polyvinylpyrrolidone. These insights establish a molecular-level description of the underlying mechanisms regulating the plasmon-driven synthesis of gold nanoprisms.},
doi = {10.1038/nmat4683},
journal = {Nature Materials},
number = 8,
volume = 15,
place = {United States},
year = {Mon Jul 04 00:00:00 EDT 2016},
month = {Mon Jul 04 00:00:00 EDT 2016}
}