Anodic Electrochemiluminescence of CdTe Quantum Dots Using Tripropylamine as Coreactant: Size-dependent Effect
نویسندگان
چکیده
منابع مشابه
Coreactant enhanced anodic electrochemiluminescence of CdTe quantum dots at low potential for sensitive biosensing amplified by enzymatic cycle.
This work used sulfite as a coreactant to enhance the anodic electrochemiluminescence (ECL) of mercaptopropionic acid modified CdTe quantum dots (QDs). This strategy proposed the first coreactant anodic ECL of QDs and led to a sensitive ECL emission of QDs in aqueous solution at relatively low potential. In the presence of dissolved oxygen, the stable ECL emission resulted from the excited QDs....
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Water-soluble CdTe quantum dots (QDs) with five sizes (2.25, 2.50, 2.77, 3.12, and 3.26nm) were synthesized with the hydrothermal method. The electrochemiluminescence (ECL) of CdTe QDs was investigated in detail in air-saturated solution without adding foreign oxidant. It was found that the ECL of CdTe QDs displayed a size-dependent property. With the increasing in the particle size of the CdTe...
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This work reported for the first time the anodic electrochemiluminescence (ECL) of CdTe quantum dots (QDs) in aqueous system and its analytical application based on the ECL energy transfer to analytes. The CdTe QDs were modified with mercaptopropionic acid to obtain water-soluble QDs and stable and intensive anodic ECL emission with a peak value at +1.17 V (vs Ag/AgCl) in pH 9.3 PBS at an indiu...
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Anodic near-infrared electrochemiluminescence (ECL) from CdTe quantum dots was achieved at low potential on a glass carbon electrode and a strategy for greatly enhanced band-gap ECL was presented.
متن کاملAnodic electrogenerated chemiluminescence of quantum dots: size and stabilizer matter.
The electrogenerated chemiluminescence (ECL) of semiconductor quantum dots (QDs) is generally believed to be independent of particle sizes or the capping agents used. Herein, we demonstrate that CdTe QDs with different sizes and stabilizers evidently exhibit different ECL behavior in aqueous solution. The ECL of CdTe QDs stabilized by 3-mercaptopropionic acid (MPA) displays two waves at potenti...
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ژورنال
عنوان ژورنال: Analytical Sciences
سال: 2020
ISSN: 0910-6340,1348-2246
DOI: 10.2116/analsci.19p489