Center f or electron transport in molecular nanostructures Columbia - PDF document

Center f or electron transport in molecular nanostructures Columbia University in the City of New York in the City of New York Managing Director: James Yardley Scientif ic Directors: Ronald Breslow, Horst Stormer Columbia Nanocenter Nanocenter team. team. Columbia Columbia University T. J. Watson Lab. David Adams Phaedon Avouris Ronald Breslow Cherie Kagan Louis Brus Norton Lang Daniel Akins George Flynn Richard Martel Ramona Brown Richard Friesner Tony Heinz Irving Herman Thomas J. Katz Philip Kim Robert Krchnavek Ann McDermott Christian Kloc Colin Nuckolls Robert Willett Stephen O’Brien Aron Pinczuk Horst Stormer Linda Doerrer Yasutomo Uemura James Yardley Discipline: Chemistry. Physics/Engineering. Education.

Three major thrust areas . . Molecular nanost ruct ures Molecular nanost ruct ures . . Transport in carbon nanot ubes Transport in carbon nanot ubes . . Transport in single molecules Transport in single molecules Underst anding and cont rolling π -t o- π int eract ions Design and Synthesis of π - stacking motif s •Direct ional assembly •Pat t erns on molecular scale •I solat ed nanost ruct ures 3 molecules wide New Materials—Novel Properties •Elect rical: swit ches and wires •I nt erconnect ions •Polar: energy conversion

Underst anding and cont rolling Assembly in SAMs NH 2 NH 2 NH 2 N O O O N N C 12 H 25 O OC 12 H 25 Design and Synthesis C 12 H 25 O C 12 H 25 O N O O N O N •upright conf ormat ion H O H O H O N N N •variet y of f unct ional groups O N O N •self -assembly on monolayers O N O N C 12 H 25 O O N C 12 H 25 O O N C 12 H 25 O C 12 H 25 O C 12 H 25 O OC 12 H 25 C 12 H 25 O OC 12 H 25 N O N O N O N O S S S S S S –1 V, 50 pA, 30 nm/ sec 14 x 13 nm Nanoelectronics •scanned probe elect ronics •molecular elect ronics •single molecule t ransist ors 50 nm