Title :

Nanomorphology of Bulk Heterojunction Organic Solar Cells in 2D and 3D Correlated to Photovoltaic Performance

Author(s) :

Barrau, Sophie [Auteur]
Department of Physics, Chemistry and Biology [Linköping] [IFM]
Andersson, Viktor [Auteur]
Department of Physics, Chemistry and Biology [Linköping] [IFM]
Zhang, Fengling [Auteur]
Department of Physics, Chemistry and Biology [Linköping] [IFM]
Masich, Sergej [Auteur]
Bijleveld, Johan [Auteur]
Department of Chemical and Biological Engineering
Andersson, Mats R. [Auteur]
Department of Chemical and Biological Engineering
Inganäs, Olle [Auteur]
Department of Physics, Chemistry and Biology [Linköping] [IFM]

Journal title :

Macromolecules

Abbreviated title :

Macromolecules

Volume number :

42

Pages :

4646-4650

Publisher :

American Chemical Society (ACS)

Publication date :

2009-07-14

HAL domain(s) :

Chimie/Matériaux

English abstract : [en]

Control of the nanoscale morphology of the donor−acceptor material blends in organic solar cells is critical for optimizing the photovoltaic performances. The influence of intrinsic (acceptor materials) and extrinsic ...
Show more >Control of the nanoscale morphology of the donor−acceptor material blends in organic solar cells is critical for optimizing the photovoltaic performances. The influence of intrinsic (acceptor materials) and extrinsic (donor:acceptor weight ratio, substrate, solvent) parameters was investigated, by atomic force microscopy (AFM) and electron tomography (ET), on the nanoscale phase separation of blends of a low-band-gap alternating polyfluorene copolymers (APFO-Green9) with [6,6]-phenyl-C71-butyric acid methyl ester ([70]PCBM). The photovoltaic performances display an optimal efficiency for the device elaborated with a 1:3 APFO-Green polymer:[70]PCBM weight ratio and spin-coated from chloroform solution. The associated active layer morphology presents small phase-separated domains which is a good balance between a large interfacial donor−acceptor area and continuous paths of the donor and acceptor phases to the electrodes.Show less >

Language :

Anglais

Audience :

Non spécifiée

Collections :

• Autres travaux scientifiques

Submission date :

2020-02-18T07:35:49Z
2020-02-20T09:03:21Z