Dramatically Enhanced Solid‐State Electrochemiluminescence of CdTe Quantum Dots Composed with TiO₂ Nanoparticles

Abstract

International audienc

Quantum Dots Based Potential-Resolution Dual-Targets Electrochemiluminescent Immunosensor for Subtype of Tumor Marker and Its Serological Evaluation

“…16 OH • could be considered as a crucial parameter for ECL emission of CdTe QDs. The ECL procedures for GSH-CdTe QDs could be expressed as following equations:…”

Amplified solid-state electrochemiluminescence detection of cholesterol in near-infrared range based on CdTe quantum dots decorated multiwalled carbon nanotubes@reduced graphene oxide nanoribbons

“…As shown in Fig. 3B, no light emission was detected from bare GCE; under the same condition, light emission was occurred from CdTe QDs/GCE (b) and CdTe-MWCNTs@rGONRs/GCE (c), indicated that the ECL peak was produced by the catalytic reaction between CdTe QDs and H 2 O 2 , and the ECL mechanism of the catalytic reaction is as follows (Ding et al, 2006;Ding et al, 2012):…”

Quantum dot-based photoelectric conversion for biosensing applications

“…This kind of GR-CdSe complex exhibited much higher ECL signal strength, good electrical conductivity, quick response and better stability, so the related biosensor showed sensitive linear response in the range 20 fg mL -1 to 2.0 ng mL -1 for human immunoglobulin with an LOD of 5.0 fg mL -1 . Moreover, a TiO 2 -NP composite was also tried to improve the performance of CdTe-QDs [71]. Metal NPs, particularly AuNPs [38,43,72], could also reduce the hindrance of electron transfer between electrode and the QD-ECL material, thus accelerating the injection rate of electron/hole, so that they can not only significantly enhance the ECL intensity, but also positively shift the starting potential and the peak potential of ECL.…”