Efficient methano[70]fullerene/MDMO-PPV bulk heterojunction photovoltaic cells

被引:1079
作者
Wienk, MM
Kroon, JM
Verhees, WJH
Knol, J
Hummelen, JC
van Hal, PA
Janssen, RAJ
机构
[1] Energy Res Ctr Netherlands ECN, Solar Energy, NL-1755 ZG Petten, Netherlands
[2] Univ Groningen, Stratingh Inst, NL-9747 AG Groningen, Netherlands
[3] Univ Groningen, MSC, NL-9747 AG Groningen, Netherlands
[4] Eindhoven Univ Technol, Lab Macromol & Organ Chem, NL-5600 MB Eindhoven, Netherlands
关键词
charge transfer; fullerenes; polymers; solar cells; time-resolved spectroscopy;
D O I
10.1002/anie.200351647
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Owing to their increased absorption of light in the visible region, [70]fullerene derivatives provide a high photocurrent when incorporated as the electron acceptor in thin-film polymer photovoltaic cells. An incident-photon-to-current efficiency of 66% is obtained when [70]PCBM (see picture) is used in combination with a poly (p-phenylene vinylene). These high currents originate from an ultrafast charge transfer that occurs upon photoexcitation of either the fullerene or the polymer.
引用
收藏
页码:3371 / 3375
页数:5
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