chargedense

Chargedense is a term used in some theoretical discussions to describe a local descriptor of electric charge within a material or system. It is intended to capture how much electric charge is present in a given volume and can reflect contributions from electrons, holes, and ions.

In practice, chargedense can be considered as a dynamic or effective charge density, emphasizing time dependence, screening, and nonuniform distributions. The term is not standardized and may be used variably, sometimes approximating the classical charge density ρ or the carrier density n e in electrochemical and condensed-matter contexts.

Measurement and interpretation of chargedense typically treat it as a quantity with units of charge per volume (coulombs per cubic meter, C/m^3) when described as total charge, or as a carrier number density (m^-3) when counting charge carriers. Experimental approaches that can inform chargedense include electrostatic force microscopy, Kelvin probe force microscopy, impedance spectroscopy, and, in imaging contexts, tomography combined with models linking signals to local charge content. In theoretical work, chargedense is often obtained from solutions to Poisson’s equation coupled to transport equations or from electronic-structure calculations that yield spatially resolved charge distributions.

Relation to related concepts: chargedense overlaps with charge density, charge-carrier density, and local electron density, but may be distinguished by emphasizing dynamical, spatially varying, or effective quantities that arise in non-equilibrium or complex media such as plasmonic nanostructures, electrolytes, or battery materials.

See also: Charge density, Charge carrier density, Electron density, Ion density, Poisson equation, Electrostatics.