Electric field distribution in polymer light-emitting electrochemical cells

被引:64
作者
deMello, JC [1 ]
Halls, JJM [1 ]
Graham, SC [1 ]
Tessler, N [1 ]
Friend, RH [1 ]
机构
[1] Univ Cambridge, Cavendish Lab, Cambridge CB3 0HE, England
关键词
D O I
10.1103/PhysRevLett.85.421
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We use electroabsorption spectroscopy and modeling studies to probe the electric field in light-emitting electrochemical cells. At room temperature and constant applied bias, the steady-state internal field is zero For a range of biases. However, when the ions are frozen in place by cooling under steady bias, and the bias is subsequently changed, the profile of the electric potential resembles a typical p-n junction.
引用
收藏
页码:421 / 424
页数:4
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