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Direct optical detection of the triplet T1-state in diphenylpolyene single crystals

✍ Scribed by V. Weiss; H. Port; H.C. Wolf

Publisher
Elsevier Science
Year
1992
Tongue
English
Weight
374 KB
Volume
192
Category
Article
ISSN
0009-2614

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✦ Synopsis

The singlet-triplet (Se+T, ) absorption of all-trans( 1,6-diphenyl)-1,3,5-hexatriene (DPH) has been made accessible for the first time without using external perturbation methods. It has been studied in DPH single crystals at high spectral resolution applying photoexcitation spectroscopy with cw dye lasers. Low temperature spectra of both monoclinic and orthorhombic crystalline phases have been obtained. The O-O transition is split into two components (d= 2.8 cm-' ), strongly polarized and possibly excitonic in nature.

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