Title :
Quantum dots/polymer composite system for turn-on fluorescent detection of peroxide hydrogen
Author :
Defeng Zhu ; Kangyi Hua ; Qingguo He ; Jiangong Cheng ; Huimin Cao
Author_Institution :
State Key Lab. of Transducer Technol., Shanghai Inst. of Microsyst. & Inf. Technol., Shanghai, China
Abstract :
We report a novel method that utilizing polyethylene polyamine (PEI)/quantum dots (QDs) composite film for the detection of H2O2 vapor via a fluorescence turn-on mode. It could be easily dispersed and quite stable under light irradiation. And compared with QDs-only film, the composite film is immune to the interference signal from other volatile organic vapors thanks to that only the oxidation-reduction reaction can terminate the electron transfer process between PEI and QDs.
Keywords :
II-VI semiconductors; cadmium compounds; composite materials; gas sensors; hydrogen compounds; polymers; spectrochemical analysis; CdTe; H2O2; PEI; light irradiation; peroxide hydrogen detection; polyethylene polyamine; quantum dot-polymer composite system; turn-on fluorescent detection; volatile organic vapor; Films; Fluorescence; Interconnected systems; Interference; Polymers; Quantum dots; Sensors;
Conference_Titel :
SENSORS, 2013 IEEE
Conference_Location :
Baltimore, MD
DOI :
10.1109/ICSENS.2013.6688241
