Phase-modulation measurements of photoinduced infrared absorptions from polythiophene

Nami Yokonuma, Yukio Furukawa, Mitsuo Tasumi

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

The magnitude and phase delay of the photoinduced infrared absorption bands of polythiophene have been measured at 78 K with a sinusoidal intensity-modulation of 514.5 nm laser light. All the photoinduced bands show the same response in magnitude and phase delay to the external stimulus. The magnitudes of the photoinduced bands show an approximate f 0.6 dependence on the modulation frequency above 1.25 kHz. The micro- to millisecond photoexcitation dynamics are discussed.

Original languageEnglish
Pages (from-to)25-30
Number of pages6
JournalJournal of Molecular Structure
Volume379
Issue number1-3
Publication statusPublished - 1996
Externally publishedYes

Fingerprint

Photoexcitation
Phase modulation
Infrared absorption
Frequency modulation
phase modulation
infrared absorption
Absorption spectra
Lasers
Modulation
Light
photoexcitation
stimuli
frequency modulation
absorption spectra
modulation
lasers
polythiophene

Keywords

  • Infrared absorption
  • Phase-modulation
  • Photoinduced
  • Polythiophene

ASJC Scopus subject areas

  • Structural Biology
  • Organic Chemistry
  • Physical and Theoretical Chemistry
  • Spectroscopy
  • Atomic and Molecular Physics, and Optics

Cite this

Phase-modulation measurements of photoinduced infrared absorptions from polythiophene. / Yokonuma, Nami; Furukawa, Yukio; Tasumi, Mitsuo.

In: Journal of Molecular Structure, Vol. 379, No. 1-3, 1996, p. 25-30.

Research output: Contribution to journalArticle

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