Boron Subphthalocyanine Chloride as an Electron Acceptor for High-Voltage Fullerene-Free Organic Photovoltaics
Boron Subphthalocyanine Chloride as an Electron Acceptor for High-Voltage Fullerene-Free Organic Photovoltaics
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DOI：
10.1002/adfm.201101782
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发表时间：
2012-02-08
影响因子：
19
通讯作者：
Jones, Tim S.
中科院分区：
文献类型：
--
作者：
Beaumont, Nicola;Cho, Sang Wan;Jones, Tim S.
报道了以四烯（Tc）为典型供体材料，亚酞菁氯化硼（SubPc）为受体材料的高效无富勒烯单异质结（SHJ）有机光伏（OPV）电池。含有SubPc作为C60的直接替代品的电池在开路电压（Voc）方面表现出类似60%的改善，达到1.24 V的最大Voc，这是迄今为止SHJ器件所达到的最高值之一。这导致功率转换效率从Tc/C60电池的1.8%提高到Tc/SubPc电池的2.9%，总体上提高了约60%。OPV装置的结果与软x射线光电子能谱（PES）测量的两种系统的界面能量相补充。结果表明，作为未来电池设计的电子受体材料，SubPc具有相当大的前景。
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 similar to 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 similar to 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 Xray 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.