✦ LIBER ✦

Dependence of the spectrum and decay of transient photoinduced reflectance change on excitation wavelength and intensity in polydiacetylene single crystals

✍ Scribed by Takayoshi Kobayashi; Hidetsugu Ikeda

Publisher: Elsevier Science
Year: 1987
Tongue: English
Weight: 482 KB
Volume: 133
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(87)80052-0

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✦ Synopsis

Transient reflectance changes in a polydiacetylene-toluene-sulfonate (PDA-TS) single crystal were found to be induced by pulsed excitations at 2.33 eV (532 nm), 3.49 eV (355 nm), and 4.66 eV (266 nm). The negative reflectance change around 1.4 eV, observed only by excitations at 4.66 and 3.49 eV was attributed to the lowest excited triplet state formed by the recombination of charge carriers.