title: Enhanced photocurrent from organic polymers-based photodiodes by blending PbS colloidal quantum dots.
abstract: Enhanced photocurrent from organic polymer-based photodiodes by blending PbS colloidal quantum dots (CQDs) are presented. The absorption spectra of nanocomposites of PbS CQDs and organic polymers, Poly[2-methoxy-5-(2'-ethylhexyloxy-pphenylenevinylene)] (MEH-PPV) and [6,6]-phenyl-C61-butyric acid methylester (PCBM), are the superposition of those of pristine constituents, indicating the absorption of the PbS CQDs contributes to the effective near-infrared light absorption for the photodiodes. The enhanced photocurrent for photodiodes made of MEH-PPV:PCBM:PbS is attributed to the excitons dissociation at the interfaces of PbS/MEH-PPV and PbS/PCBM, as well as charge transport in MEH-PPV and PCBM.
authors: Lab of Nanophotonics Materials and Technology, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, PR China.
authors: Na
authors: N
authors: Zhao
authors: Shengyi
authors: S
authors: Yang
authors: Li
authors: L
authors: Zhang
authors: Haizheng
authors: H
authors: Zhong
authors: Ruibin
authors: R
authors: Liu
authors: Bingsuo
authors: B
authors: Zou