Sökning: "Henrik Löfås"

Hittade 2 avhandlingar innehållade orden Henrik Löfås.

1. 1. Computational Studies of Electron Transport in Nanoscale Devices

   Författare :Henrik Löfås; Rajeev Ahuja; Jan Isberg; Fabian Pauly; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Density functional theory; Molecular electronics; Organosilicon chemistry; Diamond; Molecular switches; Nanoelectrode bridge platform; Molecular cords; Fysik med inriktning mot atom- molekyl- och kondenserande materiens fysik; Physics with spec. in Atomic; Molecular and Condensed Matter Physics;

   Sammanfattning : In this thesis, a combination of density functional theory (DFT) based calculations and nonequilibrium Green’s functions are employed to investigate electron transport in molecular switches, molecular cords and nanoscale devices.  Molecular electronic devices have been proposed as an approach to complement today’s silicon based electronic devices. LÄS MER

3. 2. Theoretical studies of a nanoparticle bridge platform for molecular electronics measurements

   Författare :Henrik Löfås; Rajeev Ahuja; Jan Isberg; Anton Grigoriev; Gemma Solomon; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Physics with spec. in Atomic; Molecular and Condensed Matter Physics; Fysik med inriktning mot atom- molekyl- och kondenserande materiens fysik;

   Sammanfattning : The main focus of this thesis is the theoretical investigations of a nanogap platform used for molecular electronics measurements under ambient conditions. The nanogap is about 20 nm wide, while the molecules investigated here (octanethiol(OT) and octanedithiol(ODT)) are about 1-1.5 nm long making it impossible to bridge the gap with one molecule. LÄS MER