Environmentally friendly preparation of nanoparticles for organic photovoltaics
Artikel i vetenskaplig tidskrift, 2018

Aqueous nanoparticle dispersions were prepared from a conjugated polymer poly[thiophene-2,5-diyl-alt-5,10-bis((2-hexyldecyl)oxy)dithieno[3,2-c:3′,2′-h][1,5]naphthyridine-2,7-diyl] (PTNT) and fullerene blend utilizing chloroform as well as a non-chlorinated and environmentally benign solvent, o-xylene, as the miniemulsion dispersed phase solvent. The nanoparticles (NPs) in the solid-state film were found to coalesce and offered a smooth surface topography upon thermal annealing. Organic photovoltaics (OPVs) with photoactive layer processed from the nanoparticle dispersions prepared using chloroform as the miniemulsion dispersed phase solvent were found to have a power conversion efficiency (PCE) of 1.04%, which increased to 1.65% for devices utilizing NPs prepared from o-xylene. Physical, thermal and optical properties of NPs prepared using both chloroform and o-xylene were systematically studied using dynamic mechanical thermal analysis (DMTA) and photoluminescence (PL) spectroscopy and correlated to their photovoltaic properties. The PL results indicate different morphology of NPs in the solid state were achieved by varying miniemulsion dispersed phase solvent.

Författare

Xun Pan

Flinders University

A. Sharma

Flinders University

Universite de Bordeaux

Desta Antenehe Gedefaw

University of the South Pacific

Renee Kroon

Chalmers, Kemi och kemiteknik, Tillämpad kemi, Polymerteknologi

Amaia Diaz de Zerio

N. P. Holmes

University of Newcastle, Australia

A. L. D. Kilcoyne

Lawrence Berkeley National Laboratory

M. G. Barr

University of Newcastle, Australia

A. Fahy

University of Newcastle, Australia

Melissa Marks

University of Newcastle, Australia

X. J. Zhou

University of Newcastle, Australia

W. J. Belcher

University of Newcastle, Australia

P. Dastoor

University of Newcastle, Australia

Mats Andersson

Flinders University

Organic Electronics: physics, materials, applications

1566-1199 (ISSN)

Vol. 59 432-440

Ämneskategorier

Polymerkemi

Polymerteknologi

Materialkemi

DOI

10.1016/j.orgel.2018.05.040

Mer information

Senast uppdaterat

2018-09-12