Photoinduced absorption spectra in polydiacetylenes for non linear optical applications

We report on the absorption, photoluminescence and photoinduced absorption of polydiacetylenes (PDAs) having in the side groups the photoconductive carbazolyl rings substituted by acyl CO(CH 2) n CH 3 chains ( n=10, polyDLCHD; n=14, polyDPCHD). A novel feature in the absorption spectra is detected a...

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Bibliographic Details
Published in:Synthetic metals 2003-06, Vol.138 (1), p.75-78
Main Authors: Comoretto, D., Ottonelli, M., Musso, G.F., Alloisio, M., Cavallo, D., Cuniberti, C., Dell’Erba, C., Dellepiane, G., Soci, C., Rastelli, A., Marabelli, F.
Format: Article
Language:English
Subjects:
Applied sciences
Electrical, magnetic and optical properties
Exact sciences and technology
Non linear optics
Organic polymers
Photoexcitation
Photonics
Physicochemistry of polymers
Polydiacetylene
Properties and characterization
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Summary:We report on the absorption, photoluminescence and photoinduced absorption of polydiacetylenes (PDAs) having in the side groups the photoconductive carbazolyl rings substituted by acyl CO(CH 2) n CH 3 chains ( n=10, polyDLCHD; n=14, polyDPCHD). A novel feature in the absorption spectra is detected and assigned on the basis of theoretical calculation including the electron correlation. Different features are observed in the photoexcitations spectra of thin and thick samples and a preliminary interpretation is proposed.
ISSN:0379-6779
1879-3290
DOI:10.1016/S0379-6779(02)01272-9