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Highly enhanced sensitivity of optical oxygen sensors using microstructured PtTFPP/PDMS-pillar arrays sensing layer
Mao, Yongyun1,2; Gao, Yibo3,4; Wu, Shanshan1; Wu, Siying1; Shia, Jiayan1; Zhou, Bingpu2; Tian, Yanqing1
2017-11
Source PublicationSENSORS AND ACTUATORS B-CHEMICAL
ISSN0925-4005
Volume251Pages:495-502
Abstract

In this work, we presented a facile and cost-effective approach to fabricate novel PtTFPP/PDMS micro-pillar array (MPA) sensor film with I-0/I-100 for gaseous oxygen and dissolved oxygen are 288 and 84, respectively. The sensitivity of the sensor film exhibited over similar to 30-fold increment when compared with contemporary PtTFPP/PDMS-based oxygen sensors. The detection limit was as low as 0.10 mu mol/L, which means that the ultrasensitive sensor films enable reliable monitoring of dissolved oxygen (DO) within nanomolar concentration ranges that are particularly difficult to achieve in previous works. Furthermore, the remarkably light intensity-changing characteristic of the sensing film under lower O-2 partial pressures facilitates convenient identification of O-2 concentrations even with the naked eye. We believe that the proposed device could be a promising candidate in various oxygen sensing fields such as nearly anoxic systems, unsteady pressure measurement and unsteady flow visualization, etc. (C) 2017 Elsevier B.V. All rights reserved.

KeywordOxygen Sensor Sensitivity Pttfpp/pdms-mpa Sensing Layer
DOI10.1016/j.snb.2017.05.081
URLView the original
Indexed BySCI
Language英语
WOS Research AreaChemistry ; Electrochemistry ; Instruments & Instrumentation
WOS SubjectChemistry, Analytical ; Electrochemistry ; Instruments & Instrumentation
WOS IDWOS:000406184600061
PublisherELSEVIER SCIENCE SA
The Source to ArticleWOS
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Cited Times [WOS]:12   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionINSTITUTE OF APPLIED PHYSICS AND MATERIALS ENGINEERING
Affiliation1.South Univ Sci & Technol China, Dept Mat Sci & Engn, 1088,Xueyuan Rd, Shenzhen 518055, Guangdong, Peoples R China
2.Univ Macau, Inst Appl Phys & Mat Engn, Ave Univ, Taipa, Macao, Peoples R China
3.Hong Kong Univ Sci & Technol, Nano Sci & Technol Program, Kowloon, Hong Kong, Peoples R China
4.Hong Kong Univ Sci & Technol, KAUST HKUST Micro Nanofluid Joint Lab, Kowloon, Hong Kong, Peoples R China
First Author AffilicationUniversity of Macau
Recommended Citation
GB/T 7714
Mao, Yongyun,Gao, Yibo,Wu, Shanshan,et al. Highly enhanced sensitivity of optical oxygen sensors using microstructured PtTFPP/PDMS-pillar arrays sensing layer[J]. SENSORS AND ACTUATORS B-CHEMICAL,2017,251:495-502.
APA Mao, Yongyun.,Gao, Yibo.,Wu, Shanshan.,Wu, Siying.,Shia, Jiayan.,...&Tian, Yanqing.(2017).Highly enhanced sensitivity of optical oxygen sensors using microstructured PtTFPP/PDMS-pillar arrays sensing layer.SENSORS AND ACTUATORS B-CHEMICAL,251,495-502.
MLA Mao, Yongyun,et al."Highly enhanced sensitivity of optical oxygen sensors using microstructured PtTFPP/PDMS-pillar arrays sensing layer".SENSORS AND ACTUATORS B-CHEMICAL 251(2017):495-502.
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