Record number :
Title of article :
Photoemission and vibrational studies of metal/organic interfaces modified by plasma-polymerized fluorocarbon films
Author/Authors :
J.X. Tang، نويسنده , , Y.Q. Li، نويسنده , , X. Dong، نويسنده , , S.D. Wang، نويسنده , , C.S. Lee*، نويسنده , , L.S. Hung، نويسنده , , Raymond S.T. Lee، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2005
Pages :
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Abstract :
While gold and silver have high work functions, they are known to form relatively poor hole injecting contacts with organic semiconductors. We have found that inserting an ultrathin layer of plasma-polymerized fluorocarbon (CFx) between the metal and organic materials can substantially improve the hole injection. The working mechanism of the CFx interlayer was investigated with ultraviolet and x-ray photoemission spectroscopy and high resolution electron energy loss spectroscopy. The hole injection enhancement was caused by the reduced hole injection barrier, attributed to an interfacial electric field induced by the partial charge transfer from the metal to the CFx layer. Stability of the dipolar interface upon exposure to air was also demonstrated.
Keywords :
While gold , Silver , Charge transfer
Journal title :
Applied Surface Science
Journal title :
Applied Surface Science
Serial Year :
Link To Document :