Photoexcitations of polycarbazolyldiacetylenes in different time domains

Davide Comoretto; I. Moggio; Carla Cuniberti; Giovanna Dellepiane; Alessandro Borghesi; Guglielmo Lanzani; S. Stagira; Mauro Nisoli

doi:10.1117/12.279287

1 December 1997 Photoexcitations of polycarbazolyldiacetylenes in different time domains

Davide Comoretto, I. Moggio, Carla Cuniberti, Giovanna Dellepiane, Alessandro Borghesi, Guglielmo Lanzani, S. Stagira, Mauro Nisoli

Author Affiliations +

Proceedings Volume 3145, Optical Probes of Conjugated Polymers; (1997) https://doi.org/10.1117/12.279287
Event: Optical Science, Engineering and Instrumentation '97, 1997, San Diego, CA, United States

Abstract

We report on the photoinduced absorption spectra of polycarbazolydiacetylenes polyDCHD and its soluble analogous polyDCHD-S in a broad time domain ranging from femtosecond to millisecond. Both the blue and red forms of polyDCHD-S are investigated and the results are compared with those of blue polyDCHD. In the blue form of the two polymers charged states are detected in the ms domain in addition to triplet excitons. In the red form of polyDCHD-S only triplets are detected. Femtosecond pump and probe measurements allow us to interpret the generation mechanism of the triplet states as due to singlet excitons fission.

Citation Download Citation

Davide Comoretto, I. Moggio, Carla Cuniberti, Giovanna Dellepiane, Alessandro Borghesi, Guglielmo Lanzani, S. Stagira, and Mauro Nisoli "Photoexcitations of polycarbazolyldiacetylenes in different time domains", Proc. SPIE 3145, Optical Probes of Conjugated Polymers, (1 December 1997); https://doi.org/10.1117/12.279287

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available