Switches from pi- to sigma-bonding complexes controlled by gate voltages.
A conjugated polymer/metal ion/liquid-crystal molecular system was set between source and drain electrodes with a 100 nm gap. When gate voltage (Vg) increases, the current between source and drain electrodes increases. Infrared spectra show this system to be composed of pi and sigma complexes. At Vg = 0, the pi complex dominates the sigma complex, whereas the sigma complex becomes dominant when Vg is switched on. Calculations found that the pi complex has lower conductivity than the sigma complex.
Matsui
Eriko
E
Materials Laboratories, Sony Corporation, Atsugi, Kanagawa, Japan.
Harnack
Oliver
O
Matsuzawa
Nobuyuki N
NN
Yasuda
Akio
A
D001665:Binding Sites; D004563:Electrochemistry / Q000295:instrumentation / Q000379:methods; D004566:Electrodes; D004574:Electromagnetic Fields; D004867:Equipment Design; D019544:Equipment Failure Analysis; D049329:Nanostructures / Q000032:analysis / Q000737:chemistry*; D036103:Nanotechnology / Q000295:instrumentation* / Q000379:methods; D011108:Polymers / Q000032:analysis / Q000737:chemistry*; D011758:Pyrroles / Q000032:analysis / Q000737:chemistry*; D012815:Signal Processing, Computer-Assisted / Q000295:instrumentation*; D014173:Transistors, Electronic
D011108:Polymers; D011758:Pyrroles; C422409:liquid crystal polymer; C067635:polypyrrole