@article{oai:nitech.repo.nii.ac.jp:00003657, author = {Ismail, Yasser A. M. and Soga, Tetsuo and Jimbo, Takashi}, journal = {ISRN Renewable Energy}, month = {}, note = {application/pdf}, pages = {385415-1--385415-8}, title = {Investigation of PCBM Concentration on the Performance of Small Organic Solar Cell}, volume = {2012}, year = {2012} }