Xia Wang, Zongbao Li, Bowen Jin, Wenbo Lu, Mingjie Feng, Binghai Dong, Qingxiang Liu, Hui-Juan Yan, Shi-Min Wang, Ding-Jiang Xue
Selenium (Se), the world's oldest optoelectronic material, has been widely applied in various optoelectronic devices such as commercial X-ray flat-panel detectors and photovoltaics. However, despite the rare and widely-dispersed nature of Se element, a sustainable recycling of Se and other valuable materials from spent Se-based devices has not been developed so far. Here a sustainable strategy is reported that makes use of the significantly higher vapor pressure of volatile Se compared to other functional layers to recycle all of them from end-of-life Se-based devices through a closed-space evaporation process, utilizing Se photovoltaic devices as a case study...
March 15, 2024: Advanced Science (Weinheim, Baden-Wurttemberg, Germany)