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Solution Processed Vanadium Pentoxide as Charge Extraction Layer for Organic Solar Cells
Author(s) -
Zilberberg Kirill,
Trost Sara,
Schmidt Hans,
Riedl Thomas
Publication year - 2011
Publication title -
advanced energy materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.08
H-Index - 220
eISSN - 1614-6840
pISSN - 1614-6832
DOI - 10.1002/aenm.201100076
Subject(s) - pedot:pss , materials science , pentoxide , vanadium , organic solar cell , fullerene , annealing (glass) , energy conversion efficiency , chemical engineering , work function , polymer , extraction (chemistry) , layer (electronics) , optoelectronics , nanotechnology , chromatography , composite material , organic chemistry , metallurgy , chemistry , engineering
Solution processed V 2 O 5 films prepared via a sol‐gel technique are used to replace PEDOT:PSS as hole extraction interlayers in polymer:fullerene solar cells. A high work function of 5.6 eV is found for the V 2 O 5 layers without any post‐processing (annealing or plasma treatment). A power conversion efficiency (PCE) of 3%, comparable to reference devices using PEDOT:PSS is verified. Concomitantly, a substantial improvement in device stability is demonstrated.