Welcome
To The GreenEnergyMaterials-Series
Our Mission
The Green Energy Materials Series (GEMS) aims to promote the work of emerging scientists in the field of green energy covering subjects such as solar energy, energy storage, green fuel production, and more!
With its PhD-postdoc series, GEMS gives the stage to promising early career researchers to promote their work. In this fashion, the series will provide a platform for experienced scientists to give feedback, challenge the young generation, and scout for future collaborators and colleagues.
This series aims to facilitate discussions and to enable deeper insights into phenomena and characterisation techniques. As such, presentations will focus on clearly defined topics covered in depth rather than a list of big achievements.
Presentations will be around 30 minutes long, with copious time for questions. The series will run online via Zoom on the second and fourth Wednesday of every month. Sessions usually start at 5 PM Berlin time (GMT+1) but might vary depending on the speaker’s location. Depending on your location, this translates into 8 AM Los Angeles (GMT-7), 11 AM Montreal (GMT-4), or 11 PM (GMT+8) Beijing.
With the speakers’ permission (an embargo period is possible), the talks will be recorded and uploaded to the GEMS YouTube channel.
We look forward to welcoming all of you to these events,
Vincent M. Le Corre | Simon Kahmann | Bowen Yang
Next Talk - 11 June 2025
Cumulative photovoltaic waste highlights the importance of considering waste recycling before the commercialization of emerging photovoltaic technologies.1,2 Perovskite photovoltaics are a promising next-generation technology,3 where recycling their end-of-life waste can reduce the toxic waste and retain resources.4,5 Here, we report a low-cost, green solvent-based holistic recycling strategy to restore all valuable components from perovskite photovoltaic waste. We develop an aqueous based perovskite recycling approach which can also rejuvenate degraded perovskites, exhibiting a recycling ratio of 99.0 0.4 wt%. We further extend the scope of recycling to charge-transport layers, substrates, cover glasses and metal electrodes. After repeated degradation-recycling processes, the recycled devices show similar efficiency and stability compared to the fresh devices. Our holistic recycling strategy reduces 96.6% resource depletion and 68.8% human toxicity (cancer effects) impacts associated with perovskite photovoltaics compared to the landfill treatment. With recycling, the levelized cost of electricity decreases by 18.8% for utility-scale systems and by 20.9% for residential systems. This study highlights unique opportunities of perovskite photovoltaics for holistic recycling and paves the way for sustainable perovskite solar economy.