- Photovoltaic efficiency and mechanical stability improved conducting polymer for all-polymer solar cells

摘要

The present invention is poly [4,8-bis (5- (2-ethylhexyl) 2-yl) benzo [1,2-b: 4,5-b '] dithiophene-alt-1,3- bis (2-yl) -5- (2-hexyl-decyl) -4H-thieno [3,4-c] pyrrole -4,6 (5H) - including dione] (PBDTTTPD) as electron donor, and poly [[N, N'- bis (2-hexyl-decyl) -naphthalene-1,4,5,8-bis (dicarboxylic bokseuyi imide) 2,6-diyl] - alt-5,5'-thiophen ] (P (NDI2HD) -T) relates to a conductive polymer blend of the type that includes a electron acceptors. This has been confirmed may be made to both the mechanical elasticity and high efficiency all-PSC in accordance with the present invention. Excitons brought concrete size and good mixing of the small domain is a favorable Polymer was synthesized in the dissociation and applied to a solar cell. As a result, the polymer blend has been improved, such as the organic solar cell with high performance and PCE V _oc values to prevent the electrical properties decreased, elongation was improved at break was possible to produce the mechanical durability also superior cell.;