Diketopyrrolopyrrole-based polymer:fullerene nanoparticle films with thermally stable morphology for organic photovoltaic applications
Artikel i vetenskaplig tidskrift, 2017

Polymer:fullerene nanoparticles (NPs) offer two key advantages over bulk heterojunction (BHJ) films for organic photovoltaics (OPVs), water-processability and potentially superior morphological control. Once an optimal active layer morphology is reached, maintaining this morphology at OPV operating temperatures is key to the lifetime of a device. Here we study the morphology of the PDPP-TNT (poly{3,6-dithiophene-2-yl-2,5-di(2-octyldodecyl)-pyrrolo[3,4-c]pyrrole- 1,4-dione-alt-naphthalene}):PC71BM ([6,6]-phenyl C-71 butyric acid methyl ester) NP system and then compare the thermal stability of NP and BHJ films to the common poly(3-hexylthiophene) (P3HT): phenyl C-61 butyric acid methyl ester (PC61BM) system. We find that material T-g plays a key role in the superior thermal stability of the PDPP-TNT:PC71BM system; whereas for the P3HT:PC61BM system, domain structure is critical.

blends

molecular-weight

stability

Materials Science

optimization

polymer solar-cells

photocurrent

device performance

semiconducting polymer

Författare

N. P. Holmes

B. Vaughan

E. L. Williams

Renee Kroon

Chalmers, Kemi och kemiteknik, Tillämpad kemi, Polymerteknologi

Mats Andersson

Chalmers, Kemi och kemiteknik, Tillämpad kemi, Polymerteknologi

A. L. D. Kilcoyne

P. Sonar

X. J. Zhou

P. Dastoor

W. J. Belcher

MRS Communications

2159-6859 (ISSN) 2159-6867 (eISSN)

Vol. 7 67-73

Ämneskategorier

Polymerkemi

Drivkrafter

Hållbar utveckling

DOI

10.1557/mrc.2017.3