Ion-beam sputtered palladium-fluoropolymer nano-composites as active layers for organic vapours sensors

被引：15

作者：

Cioffi, N

Farella, I

Torsi, L

Valentini, A

Sabbatini, L

Zambonin, PG

机构：

[1] Univ Bari, Dipartmento Chim, I-70126 Bari, Italy

[2] INFM, Dipartimento Interateneo Fis, Unita Bari, I-70126 Bari, Italy

来源：

SENSORS AND ACTUATORS B-CHEMICAL | 2003年 / 93卷 / 1-3期

关键词：

fluoropolymer; nano-composite; swelling; vapour sensor; nano-particle;

D O I：

10.1016/S0925-4005(03)00182-5

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Ion-beam sputtering deposited palladium-fluoropolymer (Pd-CFx) nano-structured composite films have been investigated as active layers for the detection of organic solvents vapours. The composites sensing properties have been studied and compared to those of homologous Au-CFx films by means of ellipsometric and quartz crystal microbalance (QCM) experiments. Differences have been shown between sensitivity, selectivity and response repeatability of Au-CFx andPd-CFx sensors exposed to organic solvent vapours. X-ray photoelectron spectroscopy (XPS) analysis has revealed strong similarities between the two materials as to the polymer matrix structure, but higher concentration of metal oxides and fluorides in the case of palladium. The results of the analytical characterisation have been used to discuss the performance level of the sensors. (C) 2003 Elsevier Science B.V. All rights reserved.

引用

页码：181 / 186

页数：6

共 15 条

[1] THE METAL ISLAND COATED SWELLING POLYMER OVER MIRROR SYSTEM (MICSPOMS) - A NEW PRINCIPLE FOR MEASURING IONIC-STRENGTH [J].