Ultrafast charge-transfer processes at an oriented phthalocyanine/C60 interface

被引：33

作者：

Dutton, G. J. ^{[1
]}

Jin, W. ^{[2
]}

Reutt-Robey, J. E. ^{[2
]}

Robey, S. W. ^{[1
]}

机构：

[1] NIST, Gaithersburg, MD 20899 USA

[2] Univ Maryland, Dept Chem & Biochem, College Pk, MD 20742 USA

来源：

PHYSICAL REVIEW B | 2010年 / 82卷 / 07期

基金：

美国国家科学基金会;

关键词：

PHOTOINDUCED ELECTRON-TRANSFER; SPECTRA;

D O I：

10.1103/PhysRevB.82.073407

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The ultrafast dynamics at a well-characterized CuPc/C-60 organic photovoltaic heterojunction have been directly measured with time-resolved two-photon photoemission (TR-2PPE). Phthalocyanine/C-60 donor-acceptor interfaces, characterized in detail via scanning tunneling microscopy, provide model systems for studies of critical charge separation and recombination processes that determine device performance. TR-2PPE studies of copper phthalocyanine (CuPc)/C-60 interfaces reveal ultrafast charge separation and provide evidence for recombination via low-lying CuPc triplet levels.

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页数：4

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