skip to main content

Title: The fabrication of polyfluorene and polycarbazole-based photovoltaic devices using an air-stable process route

We report a comparative study based on the fabrication of polymer:fullerene photovoltaic (PV) devices incorporating carbazole, fluorene, and a PTB based co-polymer. We have explored the efficiency and performance of such devices when the active polymer:fullerene layer is deposited by spin-casting either under nitrogen or ambient conditions. We show that PV devices based on carbazole and fluorene based materials have very similar power conversion efficiencies when processed under both air and nitrogen, with other photobleaching measurements suggesting that such materials have comparatively enhanced photostability. Devices based on the PTB co-polymer, however, have reduced efficiency when processed in air.
Authors:
;  [1] ; ;  [2]
  1. Department of Physics and Astronomy, The University of Sheffield, Hicks Building, Hounsfield Road, Sheffield S3 7RH (United Kingdom)
  2. Department of Chemistry, The University of Sheffield, The Dainton Building, Sheffield S3 7HF (United Kingdom)
Publication Date:
OSTI Identifier:
22402429
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 105; Journal Issue: 22; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; AIR; CARBAZOLES; CASTING; CASTINGS; COPOLYMERS; EFFICIENCY; FLUORENE; FULLERENES; LAYERS; NITROGEN; PERFORMANCE; PHOTOVOLTAIC EFFECT