The article, "Co-Evaporated Bulk Heterojunction Solar Cells with >6.0% Efficiency" written by Asso. Prof. Ziruo Hong, Guo Chen, and researchers from the Research Center for Organic Electronics (ROEL), was ranked ninth in "Advanced Materials Top 40(2012/5/30)."

"Advanced Materials Top 40" is a ranking of "the most downloaded articles for the past week."

URL: http://www.materialsviews.com/advanced-materials-top-40-5-30-2012/

URL: http://onlinelibrary.wiley.com/doi/10.1002/adma.201200234/references