ICCAS OpenIR
Room temperature nitrogen dioxide chemresistor using ultrathin vanadyl-phthalocyanine film as active layer
Wang, Xiujin1,2; Ji, Shiliang1,2; Wang, Haibo1,2; Yan, Donghang1,2
2011-12-15
Source PublicationSENSORS AND ACTUATORS B-CHEMICAL
ISSN0925-4005
Volume160Issue:1Pages:115-120
AbstractA room temperature nitrogen dioxide (NO(2)) chemresistor using 1.8 nm ultrathin vanadyl-phthalocyanine (VOPc) film as active layer has been prepared by Weak Epitaxy Growth (WEG) method. Its gas sensing properties to NO(2) have been compared with a 7 nm polycrystalline VOPc chemresistor. The ultrathin film device shows stronger response and better recovery character. Further results reveal that the two-dimensional transport film provides an effective charge transfer system after NO(2) adsorption and it gets rid of bulk diffusion at the same time. Kelvin probe force microscopy (KPFM) results suggest that grain boundaries are easily doped by analyte but is slow in desorption compared with crystal grains. The ultrathin film device shows advanced sensing mechanism compared with the polycrystalline film. (C) 2011 Elsevier B.V. All rights reserved.
KeywordNo(2) Detection Room Temperature Organic Gas Sensor Kelvin Probe Force Microscopy Weak Epitaxy Growth
DOI10.1016/j.snb.2011.07.021
Indexed BySCI
Language英语
WOS IDWOS:000298768100017
PublisherELSEVIER SCIENCE SA
Citation statistics
Cited Times:26[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/71952
Collection中国科学院化学研究所
Corresponding AuthorYan, Donghang
Affiliation1.Chinese Acad Sci, State Key Lab Polymer Phys & Chem, Changchun Inst Appl Chem, Beijing 100864, Peoples R China
2.Chinese Acad Sci, Grad Sch, Changchun 130022, Peoples R China
Recommended Citation
GB/T 7714
Wang, Xiujin,Ji, Shiliang,Wang, Haibo,et al. Room temperature nitrogen dioxide chemresistor using ultrathin vanadyl-phthalocyanine film as active layer[J]. SENSORS AND ACTUATORS B-CHEMICAL,2011,160(1):115-120.
APA Wang, Xiujin,Ji, Shiliang,Wang, Haibo,&Yan, Donghang.(2011).Room temperature nitrogen dioxide chemresistor using ultrathin vanadyl-phthalocyanine film as active layer.SENSORS AND ACTUATORS B-CHEMICAL,160(1),115-120.
MLA Wang, Xiujin,et al."Room temperature nitrogen dioxide chemresistor using ultrathin vanadyl-phthalocyanine film as active layer".SENSORS AND ACTUATORS B-CHEMICAL 160.1(2011):115-120.
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