| abstract |
The present invention relates to 11H-benzo [4,5] thieno [3,2-b] benzo [4,5] thieno [2,3-d] pyrrole derivatives and organic solar cells containing the same as a photoactive layer Benzo [4,5] thieno [3,2-b] benzo [4,5] thieno [2,3-d] pyrrole derivative according to the present invention and an organic solar cell containing the same as a photoactive layer Compared with 4H-dithieno [3,2-b: 2 ', 3'-d] pyrrole (4H-dithieno [3,2-b: 2', 3'-d] pyrrole and DTP) The organic solar cell device has a high open circuit voltage ( V oc ) value and thus has a remarkably high energy conversion efficiency. |