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David L. Frattarelli
Researcher at Northwestern University
Publications - 6
Citations - 379
David L. Frattarelli is an academic researcher from Northwestern University. The author has contributed to research in topics: Hyperpolarizability & Thin film. The author has an hindex of 6, co-authored 6 publications receiving 352 citations.
Papers
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Journal ArticleDOI
Twisted π-System Chromophores for All-Optical Switching
Guang S. He,Jing Zhu,Alexander Baev,Marek Samoc,Marek Samoc,David L. Frattarelli,Naoki Watanabe,Antonio Facchetti,Hans Ågren,Tobin J. Marks,Paras N. Prasad +10 more
TL;DR: An experimental and theoretical study shows that twisted chromophores with twisted π-electron systems possess very large values of the real part of the cubic hyperpolarizability, γ, which is responsible for nonlinear refraction and offers promise for applications in all-optical switching.
Journal ArticleDOI
Vapor Phase Self-Assembly of Molecular Gate Dielectrics for Thin Film Transistors
TL;DR: 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).
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Self-assembly from the gas-phase: design and implementation of small-molecule chromophore precursors with large nonlinear optical responses.
TL;DR: The computational modeling, synthesis, and characterization of a series of eight heteroaromatic organic chromophores, designed to self-organize from the vapor phase via directed hydrogen-bond networks, into acentric thin films, are reported.
Journal ArticleDOI
Ultra-High-Response, Multiply Twisted Electro-optic Chromophores: Influence of π-System Elongation and Interplanar Torsion on Hyperpolarizability
Yanrong Shi,David L. Frattarelli,Naoki Watanabe,Antonio Facchetti,Elena Cariati,Stefania Righetto,Elisa Tordin,Cristiano Zuccaccia,Alceo Macchioni,Staci L. Wegener,Charlotte L. Stern,Mark A. Ratner,Tobin J. Marks +12 more
TL;DR: The systematic synthesis, structural, optical spectroscopic, and second-order nonlinear optical (NLO) characterization of a series of donor-acceptor poly-arylene chromophores which have heretofore unachieved π-extension and substantial twisting from planarity are reported.
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Structure−Performance Correlations in Vapor Phase Deposited Self-Assembled Nanodielectrics for Organic Field-Effect Transistors
TL;DR: It is shown here that the metal-insulator-semiconductor (MIS) and OFET device electrical properties are sensitive to the v-SAND molecular dipolar orientation.