Organic solar cell breakthroughs enable large scale commercial viability: record efficiency, 10+ year lifetime, eco-friendly solvents

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

"manufacture a solar cell, using a solution with a high boiling point and without any toxic ingredients, whose energy efficiency is better than 17%... processed solar module with an area of 36 cm2 shows a power conversion efficiency over 14%... highest efficiency reported to date for organic solar cell modules with an active area exceeding 20 cm2... major step towards large-scale industrial manufacture of efficient and stable organic solar cells... small guest molecule in the right place makes it possible"