TITLE

Role of CsF on electron injection into a conjugated polymer

AUTHOR(S)
Piromreun, Pongpun; Oh, HwanSool; HwanSool Oh; Shen, Yulong; Yulong Shen; Malliaras, George G.; Scott, J. Campbell; Brock, Phil J.
PUB. DATE
October 2000
SOURCE
Applied Physics Letters;10/9/2000, Vol. 77 Issue 15
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
We studied electron injection from Al and Au cathodes into the conjugated polymer poly[2-methoxy,5-(2-ethylhexoxy)-1,4-phenylene vinylene] (MEH-PPV). When a thin CsF layer is inserted between MEH-PPV and Al, a substantial enhancement in electron injection is observed. Insertion of the same layer between MEH-PPV and Au does not have a similar effect, indicating that the enhancement mechanism is specific to CsF and Al. Thin Cs layers enhance electron injection regardless of the cathode metal. A mechanism that explains these observations is proposed. © 2000 American Institute of Physics.
ACCESSION #
4413427

 

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