Gold Nanoparticle Monolayers with Tunable Optical and Electrical Properties

Guang Yang; Longqian Hu; Timothy D. Keiper; Peng Xiong; Daniel T. Hallinan

doi:10.1021/acs.langmuir.6b00347

Gold Nanoparticle Monolayers with Tunable Optical and Electrical Properties

Guang Yang, Longqian Hu, Timothy D. Keiper, Peng Xiong, Daniel T. Hallinan

Research output: Contribution to journal › Article › peer-review

62 Scopus citations

Abstract

Centimeter-scale gold nanoparticle (Au NP) monolayer films have been fabricated using a water/organic solvent self-assembly strategy. A recently developed approach, drain to deposit, is demonstrated to be most effective in transferring the Au NP films from the water/organic solvent interface to various solid substrates while maintaining their integrity. The interparticle spacing was tuned from 1.4 to 3.1 nm using alkylamine ligands of different lengths. The ordering of the films increased with increasing ligand length. The surface plasmon resonance and the in-plane electrical conductivity of the Au NP films both exhibit an exponential dependence on the interparticle spacing. These findings show great potential in scaling up the manufacturing of high-performance optical and electronic devices based on two-dimensional metallic nanoparticle superlattices.

Original language	English
Pages (from-to)	4022-4033
Number of pages	12
Journal	Langmuir
Volume	32
Issue number	16
DOIs	https://doi.org/10.1021/acs.langmuir.6b00347
State	Published - May 3 2016
Externally published	Yes

Funding

This research was supported by start-up funding supplied by Florida State University and the FAMU-FSU College of Engineering. P.X. acknowledges support from NSF grant DMR-1308613. We thank Y. Su and Y. Xin for support in conducting TEM at the National High Magnetic Field Laboratory. (TEM is supported by National Science Foundation Cooperative Agreement Nos. DMR-1157490 and DMR-0654118 and the State of Florida). We thank S. Ramakrishnan, J. Strzalka, J. Che, and Golda C. L. for assistance with GISAXS experiments at Argonne National Laboratory's Advanced Photon Source, beamline 8-ID-E. Argonne National Laboratory's Advanced Photon Source is supported by the U.S. Department of Energy (DOE) under contract no. DE-AC02-06CH11357. We thank B. Ma and Y. Tian for support with UV-vis-NIR measurement. We thank R. Alamo and T. Lodge for helpful discussions.

Funders	Funder number
FAMU-FSU College of Engineering
National Science Foundation	DMR-1308613, DMR-0654118, DMR-1157490
U.S. Department of Energy	DE-AC02-06CH11357
Argonne National Laboratory
Florida State University

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abstract = "Centimeter-scale gold nanoparticle (Au NP) monolayer films have been fabricated using a water/organic solvent self-assembly strategy. A recently developed approach, drain to deposit, is demonstrated to be most effective in transferring the Au NP films from the water/organic solvent interface to various solid substrates while maintaining their integrity. The interparticle spacing was tuned from 1.4 to 3.1 nm using alkylamine ligands of different lengths. The ordering of the films increased with increasing ligand length. The surface plasmon resonance and the in-plane electrical conductivity of the Au NP films both exhibit an exponential dependence on the interparticle spacing. These findings show great potential in scaling up the manufacturing of high-performance optical and electronic devices based on two-dimensional metallic nanoparticle superlattices.",

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AB - Centimeter-scale gold nanoparticle (Au NP) monolayer films have been fabricated using a water/organic solvent self-assembly strategy. A recently developed approach, drain to deposit, is demonstrated to be most effective in transferring the Au NP films from the water/organic solvent interface to various solid substrates while maintaining their integrity. The interparticle spacing was tuned from 1.4 to 3.1 nm using alkylamine ligands of different lengths. The ordering of the films increased with increasing ligand length. The surface plasmon resonance and the in-plane electrical conductivity of the Au NP films both exhibit an exponential dependence on the interparticle spacing. These findings show great potential in scaling up the manufacturing of high-performance optical and electronic devices based on two-dimensional metallic nanoparticle superlattices.

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Gold Nanoparticle Monolayers with Tunable Optical and Electrical Properties

Abstract

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