Application of organophosphonic acids by one-step supercritical CO2 on 1D and 2D semiconductors: Toward enhanced electrical and sensing performances

Bhartia, B, Bacher, N, Jayaraman, S, Khatib, S, Song, J, Guo, S, Troadec, C, Puniredd, S, Srinivasan, M and Haick, H 2015, 'Application of organophosphonic acids by one-step supercritical CO2 on 1D and 2D semiconductors: Toward enhanced electrical and sensing performances', ACS Applied Materials and Interfaces, vol. 7, no. 27, pp. 14885-14895.


Document type: Journal Article
Collection: Journal Articles

Title Application of organophosphonic acids by one-step supercritical CO2 on 1D and 2D semiconductors: Toward enhanced electrical and sensing performances
Author(s) Bhartia, B
Bacher, N
Jayaraman, S
Khatib, S
Song, J
Guo, S
Troadec, C
Puniredd, S
Srinivasan, M
Haick, H
Year 2015
Journal name ACS Applied Materials and Interfaces
Volume number 7
Issue number 27
Start page 14885
End page 14895
Total pages 11
Publisher American Chemical Society
Abstract Formation of dense monolayers with proven atmospheric stability using simple fabrication conditions remains a major challenge for potential applications such as (bio)sensors, solar cells, surfaces for growth of biological cells, and molecular, organic, and plastic electronics. Here, we demonstrate a single-step modification of organophosphonic acids (OPA) on 1D and 2D structures using supercritical carbon dioxide (SCCO2) as a processing medium, with high stability and significantly shorter processing times than those obtained by the conventional physisorption-chemisorption method (2.5 h vs 48-60 h).The advantages of this approach in terms of stability and atmospheric resistivity are demonstrated on various 2D materials, such as indium-tin-oxide (ITO) and 2D Si surfaces. The advantage of the reported approach on electronic and sensing devices is demonstrated by Si nanowire field effect transistors (SiNW FETs), which have shown a few orders of magnitude higher electrical and sensing performances, compared with devices obtained by conventional approaches. The compatibility of the reported approach with various materials and its simple implementation with a single reactor makes it easily scalable for various applications.
Subject Macromolecular and Materials Chemistry not elsewhere classified
Keyword(s) supercritical carbon dioxde
organophosphonic acid
silicon nanowire
volatile organic compound
sensor
modification
DOI - identifier 10.1021/acsami.5b03597
Copyright notice © 2015 American Chemical Society
ISSN 1944-8244
Versions
Version Filter Type
Citation counts: TR Web of Science Citation Count  Cited 6 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 4 times in Scopus Article | Citations
Altmetric details:
Access Statistics: 160 Abstract Views  -  Detailed Statistics
Created: Tue, 29 Sep 2015, 09:51:00 EST by Catalyst Administrator
© 2014 RMIT Research Repository • Powered by Fez SoftwareContact us