Elucidating Orbital Delocalization Effects on Boosting Electrochemiluminescence Efficiency of Carbon Nitrides

Abstract

Figure 1. a) Scheme of microwave-assisted synthesis of CN photoelectrode. b) Thermal image for temperature distributions of CN MW580 on FTO by microwave heating. c) FTIR and d) LDI-TOF mass spectra of CN MWT (T = 400 to 580 °C).

High-Intensity Focused Ultrasound Combined with Ti3C2–TiO2 to Enhance Electrochemiluminescence of Luminol for the Sensitive Detection of Polynucleotide Kinase

“…Electrochemiluminescence (ECL) is a luminescence process in which electrogenerated substances transfer electrons on the electrode surface to form an excited state that emits light. As a technology that combines electrochemistry and photochemistry, ECL has both the controllability of the electrochemical method and the high sensitivity of the chemiluminescence method. − Luminol, which was first reported in 1928, has become one of the most widely used luminescence in ECL due to its nontoxicity, low cost, low luminescence potential, and high luminous efficiency. − It had been proven that the O 2 derivate reactive oxygen species (ROS) could boost the ECL of the luminol systems. In the luminol–H 2 O 2 ECL system, H 2 O 2 is the most commonly used exogenous coreactant.…”

Electrochemiluminescence Drug Sensor for Acetaminophen using Boron Nitride Quantum Dots as Ru(bpy)32+ Coreactant for Acetaminophen

“…Due to near-zero optical background and photobleaching, ECL sensors are beginning to make their mark in ultrasensitive bioassays [6]. In recent studies, semiconductor polymers have attracted extensive attention from photocatalysis to recent biosensing due to their unique defect-tolerant optoelectronic properties as well as being metal-free, inexpensive, and highly stable [7].…”

Intrareticular electron coupling pathway driven electrochemiluminescence in hydrogen-bonded organic frameworks

“…11 The intrareticular charge transfer between the donor and acceptor units in covalent organic frameworks (COFs) can stabilize radical ions, which is also useful for generating excited species to improve ECL performance. 12,13 Alternatively, based on high π–π interaction propensity and electrochemical activity in reticular structures, 14,15 the delocalization of orbitals and π electrons may favour electron injection on being excited, 16,17 which indicates the intrareticular electron coupling (IREC) effect, providing long-range charge transfer capability to accelerate the generation of ECL. 18–20 Therefore, it is meaningful to design densely stacked ECL emitters with a tunable charge transfer pathway to reveal the mechanism of ECL generation.…”