title: Star-shaped D-pi-A conjugated molecules: synthesis and broad absorption bands.
abstract: Two donor-acceptor hybrid star-shaped D-pi-A molecules were facilely developed. The absorption spectra of TrTD2A and TrT2DA, which almost covered the whole visible range, were tuned by changing the ratio of donor and acceptor groups. However, the PL quantum efficiencies of TrTD2A and TrT2DA in solutions were dramatically reduced after the introduction of benzothiadiazole unit as acceptor chromophore.
authors.affiliation: Beijing National Laboratory for Molecular Sciences, College of Chemistry, Peking University, Beijing 100871, China.
authors.forename: Jin-Liang
authors.initials: JL
authors.lastname: Wang
authors.forename: Zheng-Ming
authors.initials: ZM
authors.lastname: Tang
authors.forename: Qi
authors.initials: Q
authors.lastname: Xiao
authors.forename: Yuguo
authors.initials: Y
authors.lastname: Ma
authors.forename: Jian
authors.initials: J
authors.lastname: Pei