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WorksheetsNanodevices
Total questions: 11
Worksheet time: 6mins
As the volume of material decreases, the fermi energy level
increases
decreases
remains same
becomes undefined
Increase in the difference of band gap due to decrease in size of the particle is termed as
Quantum confinement
Quantum tunnelling
Barrier penetration
Resonant tunnelling
Which one of the following is a nanostructure that is unconfined only in 1 dimension?
Quantum well
Quantum wire
Quantum dot
Quantum
Which of the following nanostructure is confined in 2 dimensions?
Quantum dot
Quantum well
Quantum wire
Nanoparticle
Name the nanostructure that is confined along 1 dimension.
Quantum Dot
Quantum wire
Quantum well
Nanoparticle
In case of transition from 2D to 1D unconfined material, the band gap will
increase
decrease
remains same
undefined
Single electron phenomenon comprises of two process, they are
barrier penetration and tunnelling
coloumb blockade and resonant tunnelling
coulomb blockade and tunnelling
barrier penetration and coulomb blockade
The quantum dot in the single electron phenomenon acts like
resistor
capacitor
inductor
transistor
The accumulation of charge carriers on the quantum dot is equivalent to formation of
RL circuit
LCR circuit
LC circuit
RC circuit
Which two conditions, the single electron phenomenon should maintain to sustain coulomb blockade?
ΔE≥kT ΔE≈2πRCh
ΔE<<kT
ΔE≈RTh
ΔE>>kT
ΔE≈2πRCh
ΔE≈0 ΔE≈kT
Single electron transistor consists of
NPN
Collector, emitter and base
Gate, Source and Drain
Gate, Source, Quantum Dot and Drain
