Title of article :
Absorption spectra of field-generated cation radical in triphenyldiamine film: Lack of intervalence-charge transfer band
Author/Authors :
Harima، نويسنده , , Yutaka and Ishiguro، نويسنده , , Yasushi and Fujikawa، نويسنده , , Youhei and Hashiguchi، نويسنده , , Takahiro and Komaguchi، نويسنده , , Kenji and Ooyama، نويسنده , , Yousuke and Imae، نويسنده , , Ichiro and Ohshita، نويسنده , , Joji، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2010
Pages :
4
From page :
100
To page :
103
Abstract :
Charge-modulation spectra of N,N′-diphenyl-N,N′-bis(3-methylphenyl)-(1,1′-biphenyl)-4,4′-diamine (TPD) films were measured in the metal/insulator/semiconductor structure with Parylene-C as insulator. Signal strengths and phases were investigated as applied voltage and modulation frequency as parameters. The spectra observed in the forward bias exhibited a clear peak at 480 nm, in agreement with one of the two absorption bands of TPD monocation radical in solution. However, the rest of the bands in the near infrared, assignable to the intervalence-charge transfer, was missing. The reason for this is explained by the difference in conformations of a TPD cation in solution and solid film.
Journal title :
Chemical Physics Letters
Serial Year :
2010
Journal title :
Chemical Physics Letters
Record number :
1928237
Link To Document :
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