Linked Life Data

17474724

Source:http://linkedlifedata.com/resource/pubmed/id/17474724

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
20
pubmed:dateCreated
2007-5-17
pubmed:abstractText
A series of novel compounds with dibenzothiophene core branched structures have been synthesized, and their two-photon absorption (TPA) properties were investigated. Two-photon fluorescence (TPF) and z-scan techniques were carried out, and a significant enhancement in the TPA cross section was observed for ST-G2, which possesses the largest generation number among the studied samples. By using different solvents, the largest nonlinear optical (NLO) response was observed in the most polar solvent. Ultrafast pump-probe experiments were performed to probe the excited state dynamics in the branched molecules, and the obtained results further confirmed the TPA enhancement mechanism. Time-resolved fluorescence (TRFL) and TRFL anisotropy measurements reveal that there is an ultrafast charge localization to the intramolecular charge transfer (ICT) state followed by relaxation with a lifetime longer than 1 ns.
pubmed:language
eng
pubmed:journal
pubmed:status
PubMed-not-MEDLINE
pubmed:month
May
pubmed:issn
1089-5639
pubmed:author
pubmed:issnType
Print
pubmed:day
24
pubmed:volume
111
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
4188-94
pubmed:year
2007
pubmed:articleTitle
Enhanced two-photon absorption and ultrafast dynamics of a new multibranched chromophore with a dibenzothiophene core.
pubmed:affiliation
Physics Department, Fudan University, Shanghai 200433, People's Republic of China, Surface Physics Lab (National Key Lab), Fudan University, Shanghai 200433, People's Republic of China.
pubmed:publicationType
Journal Article