Patternable Joule Heat Film With Ultrafast Heating, High-Temperature, and Oxidation-Resistant Surface

Abstract

Ultrafast and ultrahigh temperature light sources are critical for advancements in energy, display, and security. However, their practical applications are hindered by limitations in oxidation resistance. Here, we address this challenge by proposing a novel packaging scheme utilizing rapid heating technology and a molten glass coating. This antioxidant heat source enabling Joule heating in air, wind speed detection, and basic nanodigital displays functionality. Encapsulation of a sputtered tungsten metal layer within this coating creates a Joule heater exhibiting remarkable stability. These combined functionalities pave the way for a simple and powerful new approach for Joule thermal synthesis of novel materials, rapid material screening, and micro-area displays.