Synthesis of Ag-Au bimetallic film at liquid-liquid interface and its application in vapor sensing

Renu Pasricha; Shweta Gupta; M. Sastry; Nahar Singh; Prabhat Gupta

doi:10.1016/j.tsf.2010.08.078

Synthesis of Ag-Au bimetallic film at liquid-liquid interface and its application in vapor sensing

Renu Pasricha, Shweta Gupta, M. Sastry, Nahar Singh, Prabhat Gupta

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

3 Citations (Scopus)

Abstract

We demonstrate a novel process for preparing densely packed film of silver nanoparticles at the liquid-liquid interface followed by a transmetallation reaction with gold ion to yield a film of bimetallic nanoparticles. Films of assembled silver as well as Ag-Au bimetallic were characterized by UV-vis-spectroscopy, transmission electron microscopy (TEM) and X-ray photoelectron spectroscopy (XPS) analysis. I-V measurement shows linear behavior for both the films with ca. five orders of magnitude drop in resistance for the Ag-Au bimetallic film. Temperature dependent I-V measurement revealed a semiconductor to metal transition after transmetallation reaction. The films where checked for their potential application in chemical vapor sensing to ammonia vapors.

Original language	English
Pages (from-to)	1248-1251
Number of pages	4
Journal	Thin Solid Films
Volume	519
Issue number	3
DOIs	https://doi.org/10.1016/j.tsf.2010.08.078
Publication status	Published - 30 Nov 2010
Externally published	Yes

Keywords

Bimetallic film
Gas sensing
I-V measurements
Liquid-liquid interface

Access to Document

10.1016/j.tsf.2010.08.078

Cite this

@article{b1834d2f3e48443ba2875eafa377aa64,

title = "Synthesis of Ag-Au bimetallic film at liquid-liquid interface and its application in vapor sensing",

abstract = "We demonstrate a novel process for preparing densely packed film of silver nanoparticles at the liquid-liquid interface followed by a transmetallation reaction with gold ion to yield a film of bimetallic nanoparticles. Films of assembled silver as well as Ag-Au bimetallic were characterized by UV-vis-spectroscopy, transmission electron microscopy (TEM) and X-ray photoelectron spectroscopy (XPS) analysis. I-V measurement shows linear behavior for both the films with ca. five orders of magnitude drop in resistance for the Ag-Au bimetallic film. Temperature dependent I-V measurement revealed a semiconductor to metal transition after transmetallation reaction. The films where checked for their potential application in chemical vapor sensing to ammonia vapors.",

keywords = "Bimetallic film, Gas sensing, I-V measurements, Liquid-liquid interface",

author = "Renu Pasricha and Shweta Gupta and M. Sastry and Nahar Singh and Prabhat Gupta",

year = "2010",

month = nov,

day = "30",

doi = "10.1016/j.tsf.2010.08.078",

language = "English",

volume = "519",

pages = "1248--1251",

journal = "Thin Solid Films",

issn = "0040-6090",

publisher = "Elsevier",

number = "3",

}

TY - JOUR

T1 - Synthesis of Ag-Au bimetallic film at liquid-liquid interface and its application in vapor sensing

AU - Pasricha, Renu

AU - Gupta, Shweta

AU - Sastry, M.

AU - Singh, Nahar

AU - Gupta, Prabhat

PY - 2010/11/30

Y1 - 2010/11/30

N2 - We demonstrate a novel process for preparing densely packed film of silver nanoparticles at the liquid-liquid interface followed by a transmetallation reaction with gold ion to yield a film of bimetallic nanoparticles. Films of assembled silver as well as Ag-Au bimetallic were characterized by UV-vis-spectroscopy, transmission electron microscopy (TEM) and X-ray photoelectron spectroscopy (XPS) analysis. I-V measurement shows linear behavior for both the films with ca. five orders of magnitude drop in resistance for the Ag-Au bimetallic film. Temperature dependent I-V measurement revealed a semiconductor to metal transition after transmetallation reaction. The films where checked for their potential application in chemical vapor sensing to ammonia vapors.

AB - We demonstrate a novel process for preparing densely packed film of silver nanoparticles at the liquid-liquid interface followed by a transmetallation reaction with gold ion to yield a film of bimetallic nanoparticles. Films of assembled silver as well as Ag-Au bimetallic were characterized by UV-vis-spectroscopy, transmission electron microscopy (TEM) and X-ray photoelectron spectroscopy (XPS) analysis. I-V measurement shows linear behavior for both the films with ca. five orders of magnitude drop in resistance for the Ag-Au bimetallic film. Temperature dependent I-V measurement revealed a semiconductor to metal transition after transmetallation reaction. The films where checked for their potential application in chemical vapor sensing to ammonia vapors.

KW - Bimetallic film

KW - Gas sensing

KW - I-V measurements

KW - Liquid-liquid interface

UR - https://www.scopus.com/pages/publications/78049318015

U2 - 10.1016/j.tsf.2010.08.078

DO - 10.1016/j.tsf.2010.08.078

M3 - Article

AN - SCOPUS:78049318015

SN - 0040-6090

VL - 519

SP - 1248

EP - 1251

JO - Thin Solid Films

JF - Thin Solid Films

IS - 3

ER -

Synthesis of Ag-Au bimetallic film at liquid-liquid interface and its application in vapor sensing

Abstract

Keywords

Access to Document

Other files and links

Cite this