Enhancement of Two-Photon Absorption Cross-Section and Singlet-Oxygen Generation in Porphyrins upon β-Functionalization with Donor−Acceptor Substituents
作者:Marika Morone、Luca Beverina、Alessandro Abbotto、Fabio Silvestri、Elisabetta Collini、Camilla Ferrante、Renato Bozio、Giorgio A. Pagani
DOI:10.1021/ol060742i
日期:2006.6.1
The microwave-enhanced synthesis, comparative singlet oxygen sensitization efficiency, and nonlinear optical characterization of a new beta-functionalized porphyrin and its copper complex are described. We show that the introduction of a donor-acceptor push-pull conjugated fragment in the beta position strongly perturbs the porphyrin electronic structure leading to a remarkable one- and two-photon
Vapor Phase Self-Assembly of Molecular Gate Dielectrics for Thin Film Transistors
作者:Sara A. DiBenedetto、David Frattarelli、Mark A. Ratner、Antonio Facchetti、Tobin J. Marks
DOI:10.1021/ja801309g
日期:2008.6.18
Organic-inorganic films grown entirely via a vapor-phase deposition process and composed of highly polarizable molecular structures are investigated as gate dielectrics in organic field-effect transistors(OFETs). Molecules 1 and 2 form self-ordered thin films via hydrogen bonding, and these organic-inorganic structures exhibit large capacitances and large pentacene OFET mobilities.