Author/Authors :
Wang، نويسنده , , Zhijie and Qu، نويسنده , , Shengchun and Zeng، نويسنده , , Xiangbo and Zhang، نويسنده , , Changsha and Shi، نويسنده , , Mingji and Tan، نويسنده , , Furui and Wang، نويسنده , , Zhanguo and Liu، نويسنده , , Junpeng and Hou، نويسنده , , Yanbing and Teng، نويسنده , , Feng and Feng، نويسنده , , Zhihui، نويسنده ,
Abstract :
Poly[2-methoxy-5-(3′,7′-dimethyloctyloxy)-1,4-phenylenevinylene] (MDMO-PPV) capped PbS quantum dots about 3–6 nm in diameter were synthesized with a novel method. Unlike the synthesis of oleic acid capped PbS quantum dots, the reactions were carried out in solution at room temperature, with the presence of a capping ligand species, MDMO-PPV. The quantum dots were used to fabricate bulk heterojunction solar cells with an indium tin oxide (ITO)/polyethylenedioxythiophene/polystyrenesulphonate (PEDOT: PSS)/MDMO-PPV: PbS/Al structure. Current density–voltage characterization of the devices showed that after the addition of the MDMO-PPV capped PbS quantum dots to MDMO-PPV film, the performance was dramatically improved compared with pristine MDMO-PPV solar cells.
