Details

Autor(en) / Beteiligte

• Wang, Xia
• Li, Zongbao
• Jin, Bowen
• Lu, Wenbo
• Feng, Mingjie
• Dong, Binghai
• Liu, Qingxiang
• Yan, Hui-Juan
• Wang, Shi-Min
• Xue, Ding-Jiang

Titel

Sustainable Recycling of Selenium-Based Optoelectronic Devices

Ist Teil von

• Advanced science, 2024-03, p.e2400615-e2400615

Ort / Verlag

Germany

Erscheinungsjahr

2024

Link zum Volltext

Quelle

Wiley Online Library Journals

Beschreibungen/Notizen

• 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. This strategy results in high recycling yields of ≈ 98% for Se and 100% for other functional materials including valuable gold electrodes and glass/FTO/TiO substrates. The refabricated photovoltaic devices based on these recycled materials achieve an efficiency of 12.33% under 1000-lux indoor illumination, comparable to devices fabricated using commercially sourced materials and surpassing the current indoor photovoltaic industry standard of amorphous silicon cells.