https://doi.org/10.51514/JSTR.6.3.2024.25-29
Vinita Prajapati
ABSTRACT
Electron Spin Resonance is a very powerful technique that uses microwaves and a stationary magnetic field to detect the performance of unpaired electrons in a material. The detection and characterization of paramagnetic species by electron spin resonance (ESR) spectroscopy is widely used throughout chemistry, biology and materials science. In this review article, charge separation in nanoparticles functionalized with various spin labels and spin labels using ESR method along with quantum limit of sensitivity and its applications are explained in an easy type. ESR spectroscopy to notice the separation of charged carriers and reactive oxygen species (ROS) generation in nanomaterials. In ESR sensitivity, reaching the quantum limit enables the detection of an extremely small number of spins.
Keywords: Unpaired electron, nanoparticles, charge, sensitivity, oxygen spices, spin etc.