Phase-modulation measurements of photoinduced infrared absorptions from polythiophene

Nami Yokonuma; Yukio Furukawa; Mitsuo Tasumi

doi:10.1016/0022-2860(95)09161-0

Phase-modulation measurements of photoinduced infrared absorptions from polythiophene

Nami Yokonuma, Yukio Furukawa, Mitsuo Tasumi

Research output: Contribution to journal › Article › peer-review

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 language	English
Pages (from-to)	25-30
Number of pages	6
Journal	Journal of Molecular Structure
Volume	379
Issue number	1-3
DOIs	https://doi.org/10.1016/0022-2860(95)09161-0
Publication status	Published - 1996 Jan 1
Externally published	Yes

Keywords

Infrared absorption
Phase-modulation
Photoinduced
Polythiophene

ASJC Scopus subject areas

Analytical Chemistry
Spectroscopy
Organic Chemistry
Inorganic Chemistry

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10.1016/0022-2860(95)09161-0

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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.",

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AU - Furukawa, Yukio

AU - Tasumi, Mitsuo

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N2 - 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.

AB - 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.

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KW - Phase-modulation

KW - Photoinduced

KW - Polythiophene

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