Electromodulated optical properties of the silver/pentacene/ITO thin film structure

C. R. Lu, R. C. Shih, H. K. Hsu, W. Y. Chou, Y. S. Mai, S. W. Chu, S. Y. Lin

Research output: Contribution to journalConference article

Abstract

Electromodulated optical responses of the silver/pentacene/ ITO thin film structures were characterized at various biases and temperatures. The optical transitions were perturbed by the energy shifts of the electronic states due to Stark effect induced by the modulation electric field. The modulated spectrum is strongly enhanced in the spectral regions involving the fundamental transitions and composed of the first derivatives of the unmodulated lineshapes. The field-induced change of the transmission increases with the increasing modulation voltage. The transition energies of the silver/pentacene/ ITO system can be derived from the peak positions in the electromodulated spectrum. As the temperature is increased from 25 K, the modulated transmission signal is also increased, and becomes non-monotonous as the temperature is further increased. The transition energies involving the pentacene molecular states remain almost constant as the temperature varies.

Original languageEnglish
Pages (from-to)3197-3199
Number of pages3
JournalPhysica Status Solidi (C) Current Topics in Solid State Physics
Volume5
Issue number9
DOIs
Publication statusPublished - 2008 Dec 1
Event34th International Symposium on Compound Semiconductors, ISCS-2007 - Kyoto, Japan
Duration: 2007 Oct 152007 Oct 18

Fingerprint

ITO (semiconductors)
silver
optical properties
thin films
modulation
signal transmission
temperature
Stark effect
optical transition
energy
electric fields
shift
electric potential
electronics

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Electromodulated optical properties of the silver/pentacene/ITO thin film structure. / Lu, C. R.; Shih, R. C.; Hsu, H. K.; Chou, W. Y.; Mai, Y. S.; Chu, S. W.; Lin, S. Y.

In: Physica Status Solidi (C) Current Topics in Solid State Physics, Vol. 5, No. 9, 01.12.2008, p. 3197-3199.

Research output: Contribution to journalConference article

Lu, C. R. ; Shih, R. C. ; Hsu, H. K. ; Chou, W. Y. ; Mai, Y. S. ; Chu, S. W. ; Lin, S. Y. / Electromodulated optical properties of the silver/pentacene/ITO thin film structure. In: Physica Status Solidi (C) Current Topics in Solid State Physics. 2008 ; Vol. 5, No. 9. pp. 3197-3199.
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AU - Lin, S. Y.

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