Documents Improving power conversion efficiency in bulk heterojunction P3HT: PCBM organic solar cells by...

IOSR Journal of Applied Physics (IOSR-JAP) e-ISSN: 2278-4861.Volume 7, Issue 5 Ver. I (Sep. - Oct. 2015), PP 41-48 www.iosrjournals DOI: 10.9790/4861-07514148 www.iosrjournals.org…