Binghamton University researchers develop moisture-to-electricity wallpaper

Researchers at Binghamton University have developed an experimental wallpaper capable of generating small amounts of electricity by absorbing moisture from the air. Led by electrical and computer engineering professor Seokheun “Sean” Choi, the team included doctoral student Guangya “Roger” Yuan and researcher Yang “Lexi” Gao.

The technology utilizes tiny moist-electric generators (MEGs) that absorb water molecules, causing ions within the material to move and create a voltage through an ion-concentration gradient. While the power output is modest, it is designed to support low-energy devices within the “Internet of Things,” such as environmental sensors for temperature and humidity, wireless communication modules, and smart-building controls.

Unlike previous moist-electric generators designed for outdoor use, this wallpaper is optimized for indoor environments where humidity remains relatively stable, typically between 30% and 60%. The researchers noted that indoor activities like cooking, bathing, and breathing provide a consistent source of moisture to drive the technology.