Two-photon absorption properties of multi-branched bis-(styryl)benzene based organic chromophores

• Two-photon absorption (TPA) cross-sections of a series of multi-branched trans-stilbene charge transfer compounds with benzene as the coupling center have been theoretically investigated using analytical response theory at the random phase approximation level. It shows that the TPA cross-sections of compounds with a quasi-one-dimensional geometrical arrangement can be enhanced through the pure electronic coupling of different branches. The effects of different combination of donor/acceptor substitutions on the TPA cross-sections have also been discussed.

Ämnesord

NATURVETENSKAP  -- Kemi (hsv//swe)

NATURAL SCIENCES  -- Chemical Sciences (hsv//eng)

Nyckelord

two-photon absorption

charge-transfer process

electronic coupling

organic compounds

cross-sections

cooperative enhancement

charge-transfer

molecules

design

Publikations- och innehållstyp

ref (ämneskategori)

art (ämneskategori)