Addition of BTO molecule enables high efficiency manufacture of larger area organic solar cells

 https://liu.se/en/news-item/effektiva-organiska-solceller-for-utomhusbruk

"a major step towards large-scale industrial manufacture of efficient and stable organic solar cells... high boiling point and without any toxic ingredients, whose energy efficiency is better than 17%... power conversion efficiency over 14%. This is the highest efficiency reported to date for organic solar cell modules with an active area exceeding 20 cm2. Both of these breakthroughs are important for organic solar cell technology to make its commercial breakthrough at a large scale"