TY - JOUR
T1 - Boron subphthalocyanine chloride as an electron acceptor for high-voltage fullerene-free organic photovoltaics
AU - Beaumont, Nicola
AU - Cho, Sang Wan
AU - Sullivan, Paul
AU - Newby, David
AU - Smith, Kevin E.
AU - Jones, Tim S.
PY - 2012/2/8
Y1 - 2012/2/8
N2 - High-efficiency fullerene-free single-heterojunction (SHJ) organic photovoltaic (OPV) cells consisting of tetracene (Tc) as a typical donor material and boron subphthalocyanine chloride (SubPc) as an acceptor material are reported. Cells containing SubPc as a direct replacement for C 60 exhibit an ∼60% improvement in open circuit voltage (V oc) achieving a maximum V oc of 1.24 V, which is amongst the highest values acheived to date for SHJ devices. This resulted in an overall improvement of ∼60% in power conversion efficiency from 1.8%, for Tc/C 60 cells, to 2.9% for Tc/SubPc. The OPV device results are complemented by soft X-ray photoelectron spectroscopy (PES) measurements of the interfacial energetics of both systems. The results demonstrate that SubPc shows considerable promise as an electron acceptor material for future cell designs.
AB - High-efficiency fullerene-free single-heterojunction (SHJ) organic photovoltaic (OPV) cells consisting of tetracene (Tc) as a typical donor material and boron subphthalocyanine chloride (SubPc) as an acceptor material are reported. Cells containing SubPc as a direct replacement for C 60 exhibit an ∼60% improvement in open circuit voltage (V oc) achieving a maximum V oc of 1.24 V, which is amongst the highest values acheived to date for SHJ devices. This resulted in an overall improvement of ∼60% in power conversion efficiency from 1.8%, for Tc/C 60 cells, to 2.9% for Tc/SubPc. The OPV device results are complemented by soft X-ray photoelectron spectroscopy (PES) measurements of the interfacial energetics of both systems. The results demonstrate that SubPc shows considerable promise as an electron acceptor material for future cell designs.
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U2 - 10.1002/adfm.201101782
DO - 10.1002/adfm.201101782
M3 - Article
AN - SCOPUS:84863417630
SN - 1616-301X
VL - 22
SP - 561
EP - 566
JO - Advanced Functional Materials
JF - Advanced Functional Materials
IS - 3
ER -
