Tunnelling, resonant

Fig. 8. (a) Structure of a typical resonant tunneling diode (RTD) (b) conduction band diagram for the barrier stmcture where (-------) represents the... 

The proposed technique seems to be rather promising for the formation of electronic devices of extremely small sizes. In fact, its resolution is about 0.5-0.8 nm, which is comparable to that of molecular beam epitaxy. However, molecular beam epitaxy is a complicated and expensive technique. All the processes are carried out at 10 vacuum and repair extrapure materials. In the proposed technique, the layers are synthesized at normal conditions and, therefore, it is much less expansive. The presented results had demonstrated the possibility of the formation of superlattices with this technique. The next step will be the fabrication of devices based on these superlattices. To begin with, two types of devices wiU be focused on. The first will be a resonant tunneling diode. In this case the quantum weU will be surrounded by two quantum barriers. In the case of symmetrical structure, the resonant... 

Ion neutralization (or Ion survival) can dominate this technique. A number of theories have arisen to account for this phenomenon, but all seem to Include both Auger transitions and resonance tunneling processes as the dominant means of Ion neutralization.(4,5) For very slow Ions, as In LEISS, Auger... 

Mazur U, Hipps KW (1995) Resonant tunneling bands and electrochemical reduction potentials. J Phys Chem 99 6684—6688... 

Fig. 2 (a) Schematic representation of the energy levels diagrams for a DBA system and a MBM junction in which the electron transfer process is dominated (b) by superexchange or non-resonant tunnelling, (c) by resonant tunnelling or (d) by hopping ... 

Tao NJ (1996) Probing potential-tuned resonant tunneling through redox molecules with scanning tunneling microscopy. Phys Rev Lett 76 4066-4069... 

Mazur U, Hipps KW (1994) Resonant tunneling in metal phthalocyanines. J Phys Chem 98 8169-8172... 

Katz D, Millo O, Kan S, Banin U (2001) Control of charging in resonant tunneling through InAs nanocrystal quantum dots. Appl Phys Lett 79 117-119... 

Bar-Joseph I, Gurvitz SA (1991) Time-dependent approach to resonant tunneling and inelastic scattering. Phys Rev B 44 3332... 

Sergueev N, Demkov AA, Guo H (2007) Inelastic resonant tunneling in C60 molecular junction. Phys Rev B75 233418... 

A. Rawlett, J. Chen, M. A Reed, J. M. Tom, Advances in Molecular Scale Electronics Synthesis and Testing of Molecular Scale Resonant Tunneling Diodes and Molecular Scale Controllers, Polym. Mater, Sci. Engin (Am Chem Soc, Div. Polym Mater) 1999, 81,140-141. 

Figure 7. Two different routes of resonance tunneling and the barriers in the oxide layer on a metal surface. f and denote the energy at the bottom of the conduction band of the oxide layer at the metal/oxide and at the oxide/elec-trolyte interfaces respectively. (Reprinted from Ref. 54.)...

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