| Literature DB >> 25482608 |
Florian S U Fischer1, Daniel Trefz, Justus Back, Navaphun Kayunkid, Benjamin Tornow, Steve Albrecht, Kevin G Yager, Gurpreet Singh, Alamgir Karim, Dieter Neher, Martin Brinkmann, Sabine Ludwigs.
Abstract
PCPDTBT, a marginally crystallizable polymer, is crystallized into a new crystal structure using solvent-vapor annealing. Highly ordered areas with three different polymer-chain orientations are identified using TEM/ED, GIWAXS, and polarized Raman spectroscopy. The optical and structural properties differ significantly from films prepared by standard device preparation protocols. Bilayer solar cells, however, show similar performance.Entities:
Keywords: PCPDTBT (poly{[4,4-bis(2-ethylhexyl)-cyclopenta-(2,1-b;3,4-b')dithiophen]-2,6-diyl-alt-(2,1,3-benzo-thiadiazole)-4,7-diyl}); crystallization; low bandgap polymers; morphology; solvent vapor annealing
Year: 2014 PMID： 25482608 DOI： 10.1002/adma.201403475
Source DB: PubMed Journal: Adv Mater ISSN： 0935-9648 Impact factor: 30.849