Optical fiber liquefied petroleum gas sensor based on the fluorescence quenching of CdSe quantum dot - Details

author：

Yu, Wenwei (Yu, Wenwei.) ^[1] | Yang, Qiaoyun (Yang, Qiaoyun.) ^[2] | Chen, Yujing (Chen, Yujing.) ^[3] | Li, Hongjie (Li, Hongjie.) ^[4] | Huang, Yantang (Huang, Yantang.) ^[5] (Scholars：黄衍堂)

Indexed by：

EI Scopus

Abstract：

A　flameproof　optical　fiber　liquefied　petroleum　gas　sensor　was　designed　and　fabricated.　Bare-core　CdSe　and　CdSe@ZnSeS@ZnS@CdZnS　were　modified　with　pentafluorobenzoic　acid　(FBA)　and　encapsulated　in　PMMA　as　fluorescent　probes　for　liquefied　petroleum　gas,　enhancing　the　quantum　dots＇　response　to　liquefied　petroleum　gas　detection.　Both　materials　exhibited　significant　fluorescence　quenching　in　the　presence　of　liquefied　petroleum　gas,　with　the　Stern-Volmer　plot　showing　a　good　linear　relationship　with　the　gas.　A　detection　optical　path　was　designed,　and　the　relationship　between　fluorescence　intensity　and　gas　concentration　was　fitted　with　an　expression　with　a　sensitivity　of　0.081　(I0/I100-1),　enabling　real-time　detection　of　liquefied　petroleum　gas.　©　Published　under　licence　by　IOP　Publishing　Ltd.

Keyword：

Fiber optic chemical sensors Gasoline Layered semiconductors Liquefied petroleum gas Nanocrystals Nanorings Optical fiber fabrication Optical fibers Photonics Quenching Selenium compounds Zinc Selenide

Community：

[ 1 ] [Yu, Wenwei]College of Physics and Information Engineering, Fuzhou University, Fuzhou; 350116, China
[ 2 ] [Yang, Qiaoyun]College of Physics and Information Engineering, Fuzhou University, Fuzhou; 350116, China
[ 3 ] [Chen, Yujing]College of Physics and Information Engineering, Fuzhou University, Fuzhou; 350116, China
[ 4 ] [Li, Hongjie]College of Physics and Information Engineering, Fuzhou University, Fuzhou; 350116, China
[ 5 ] [Huang, Yantang]College of Physics and Information Engineering, Fuzhou University, Fuzhou; 350116, China