Inorganic-organic hybrid solar cell: bridging quantum dots to conjugated polymer nanowires

Publication Type:

Journal Article

Source:

Nano Lett., ACS Publications, Volume 11, Issue 9, p.3998-4002 (2011)

ISBN:

1530-6984

Keywords:

2011, 2013 and earlier

Abstract:

Quantum dots show great promise for fabrication of hybrid bulk heterojunction solar cells with enhanced power conversion efficiency, yet
controlling the morphology and interface structure on the nanometer length
scale is challenging. Here, we demonstrate quantum dot-based hybrid solar
cells with improved electronic interaction between donor and acceptor
components, resulting in significant improvement in short-circuit current
and open-circuit voltage. CdS quantum dots were bound onto crystalline
P3HT nanowires through solvent-assisted grafting and ligand exchange,
leading to controlled organic-inorganic phase separation and an improved
maximum power conversion efficiency of 4.1% under AM 1.5 solar
illumination. Our approach can be applied to a wide range of quantum dots
and polymer hybrids and is compatible with solution processing, thereby
offering a general scheme for improving the efficiency of nanocrystal
hybrid solar cells.

Notes:

PMID: 21859097