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Title: The role of the hole-extraction layer in determining the operational stability of a polycarbazole:fullerene bulk-heterojunction photovoltaic device

We have made a comparative study of the relative operational stability of bulk-heterojunction organic photovoltaic (OPV) devices utilising different hole transport layers (HTLs). OPV devices were fabricated based on a blend of the polymer PCDTBT with the fullerene PC{sub 70}BM, and incorporated the different HTL materials PEDOT:PSS, MoO{sub x} and V{sub 2}O{sub 5}. Following 620 h of irradiation by light from a solar simulator, we find that devices using the PEDOT:PSS HTL retained the highest efficiency, having a projected T{sub 80} lifetime of 14‚ÄČ500 h.
Authors:
; ; ; ;  [1] ; ;  [2] ;  [3]
  1. Department of Physics and Astronomy, University of Sheffield, Sheffield S3 7RH (United Kingdom)
  2. Department of Chemistry, University of Sheffield, Sheffield S3 7HF (United Kingdom)
  3. Ossila Ltd., Kroto Innovation Centre, Broad Lane, Sheffield S3 7HQ (United Kingdom)
Publication Date:
OSTI Identifier:
22412664
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 106; Journal Issue: 7; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; FULLERENES; HETEROJUNCTIONS; HOLES; IRRADIATION; LAYERS; LIFETIME; ORGANIC POLYMERS; PHOTOVOLTAIC EFFECT; POLYMERS; SOLAR SIMULATORS; VANADIUM OXIDES; VISIBLE RADIATION