Fig. 2 (IMAGE) Osaka University Caption Quantum efficiencies of single-component organic solar cells (right) and performances of bulk heterojunction organic solar cells (left). Credit Osaka University Usage Restrictions No modifications of the work are permitted. License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.