Enhanced open-circuit voltage in subphthalocyanine/C60 organic photovoltaic cells

被引：435
作者：
Mutolo, Kristin L.
Mayo, Elizabeth I.
Rand, Barry P.
Forrest, Stephen R.
Thompson, Mark E. [1 ]
机构：
[1] Univ So Calif, Dept Chem, Los Angeles, CA 90089 USA
[2] Princeton Univ, Dept Elect Engn, Princeton, NJ 08544 USA
[3] Princeton Univ, PRISM, Princeton, NJ 08544 USA
[4] Univ Michigan, Dept Elect Engn & Comp Sci, Ann Arbor, MI 48109 USA
[5] Univ Michigan, Dept Phys, Ann Arbor, MI 48109 USA
[6] Univ Michigan, Dept Mat Sci & Engn, Ann Arbor, MI 48109 USA
来源：
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2006年 / 128卷 / 25期
关键词：
D O I：
10.1021/ja061655o
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
A double-heterostructure boron subphthalocyanine chloride (SubPc)/C60 thin-film photovoltaic cell exhibits a more than doubled Voc compared to a conventional copper phthalocyanine (CuPc)/C60 cell under 1 sun AM1.5G simulated illumination. The lower oxidation potential of SubPc results in an increase in the energy difference between the lowest unoccupied molecular orbital of the acceptor-like material and the highest occupied molecular orbital of the donor-like material (referred to as the interface gap, Ig) by 400 meV. We attribute the significant increase in Voc to this increase in Ig. Copyright© 2006 American Chemical Society.
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页码：8108 / 8109
页数：2
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