👉 In physics, a thermophosphoreless material is one that cannot form phosphorescence at temperatures above its melting point. This condition refers to a substance's ability to maintain or increase its electrical conductivity without emitting any visible light when exposed to an electric field. Thermophosphoresence is the process by which materials such as gold and silver, and more recently, lithium-ion batteries, undergo spontaneous emission of electrons in response to electric fields. In chemistry, phosphorescence refers to the absorption of