Boron subphthalocyanine chloride as an electron acceptor for high-voltage fullerene-free organic photovoltaics
Beaumont , Nicola, Cho, Sang Wan, Sullivan, Paul J., Newby, David, Smith, Kevin E. and Jones, Tim S.. (2012) Boron subphthalocyanine chloride as an electron acceptor for high-voltage fullerene-free organic photovoltaics. Advanced Functional Materials, Vol.22 (No.3). pp. 561-566. ISSN 1616-301XFull text not available from this repository.
Official URL: http://dx.doi.org/10.1002/adfm.201101782
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 C60 exhibit an ∼60% improvement in open circuit voltage (Voc) achieving a maximum Voc 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/C60 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.
|Item Type:||Journal Article|
|Divisions:||Faculty of Science > Chemistry|
|Journal or Publication Title:||Advanced Functional Materials|
|Publisher:||Wiley - V C H Verlag GmbH & Co. KGaA|
|Page Range:||pp. 561-566|
|Access rights to Published version:||Restricted or Subscription Access|
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