Structural characterization of conjugated polyelectrolyte electron transport layers by NEXAFS spectroscopy

被引:56
作者
Park, Juhyun [1 ,2 ]
Yang, Renqiang [1 ,2 ]
Hoven, Corey V. [1 ,2 ]
Garcia, Andres [1 ]
Fischer, Daniel A. [3 ]
Nguyen, Thuc-Quyen [1 ]
Bazan, Guillermo C. [1 ,2 ]
DeLongchamp, Dean M. [3 ]
机构
[1] Univ Calif Santa Barbara, Dept Chem & Biochem, Santa Barbara, CA 93106 USA
[2] Univ Calif Santa Barbara, Dept Mat, Santa Barbara, CA 93106 USA
[3] NIST, Div Polymers, Elect Mat Grp, Gaithersburg, MD 20899 USA
关键词
D O I
10.1002/adma.200702995
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
NEXAFS spectroscopy of conjugated polyelectrolytes used as the electron transport layer in polymer light-emitting diodes reveals a substrate-dependent accumulation of charged groups at the surface (see figure). The measurements are also consistent with a preferential orientation of tetrahedral counterions at the surface.
引用
收藏
页码:2491 / +
页数:7
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