We discuss density functional theory calculations of hybrid inorganic-organic systems that explicitly include the global effects of doping (i.e., position of the Fermi level) and the formation of a space-charge layer. For the example of tetrafluoro-tetracyanoquinodimethane on the ZnO(0001[over ¯]) surface we show that the adsorption energy and electron transfer depend strongly on the ZnO doping...

the storage capacity of hydrogen on na-decorated born nitride nanotubes (bnnts) is investigated by using density functional theory within quantum espresso and gaussian 09. the results obtained predict that a single na atom tends to occupy above the central region of the hexagonal rings in (5,0) and (3,3) bnnt structures with a binding energy of -2.67 and -4.28 ev/na-atom respectively. when a si...

It has been remarked that CCD circuits, unlike transistor circuits, must A new approach to designing low-power, be monolithically integrated to function. compact, charge-coupled device (CCD), Unfortunately, confinement of the signal analog, VLSI circuits for signal charge to the semiconductor inhibits the processing is described. A charge domain implementation of circuit topologies in wire tran...

The proposed circuit is a dual-chain Dickson type charge pump making use of both active and passive charge transfer switches in order to achieve a compromise between power efficiency, circuit complexity and device reliability. The charge pump is capable of sourcing up to 500 μA at 10 V output voltage for supplying the error amplifiers of two NMOS Low Drop Out (LDO) linear regulators as part of ...

The two-dimensional electron gas charge-coupled device (ZDEG-CCD) structure for 111-V and other heterojunction materials is reviewed. Device design considerations for gate, insulator, and channel material parameters are presented. Optimization of ZDEG-CCD performance parameters such as well capacity, dark current, and transfer efficiency is discussed. Experimental results on AIGaAs/GaAs uniform...

The effect of technology scaling (0.5–0.09 m) on single event upset (SEU) phenomena is investigated using full two-dimensional device simulation. The SEU reliability parameters, such as critical charge ( crit), feedback time ( fd) and linear energy transfer (LET), are estimated. For 0 18 m, the source node collects a significant fraction of radiation-induced charge resulting in an increase of L...

With an ongoing trend in mobile phone charger standardization, the next step to make the charging process even more user-friendly is to eliminate the physical cable connection between the charger and the mobile phone. To achieve a wireless charging of a mobile phone, a wireless power transfer system must be designed. One such system is presented in this paper. Theory of the wireless power trans...

The attachment of semiconducting nanoparticles to carbon nanotubes is one of the most challenging subjects in nanotechnology. Successful high coverage attachment and control over the charge transfer mechanism and photo-current generation open a wide field of new applications such as highly effective solar cells and fibre-enhanced polymers. In this work we study the charge transfer in individual...

The fact that fullerenes are good electron acceptors has generated interest in covalently linked complexes between electron donors and fullerenes; photoinduced charge transfer in these dyads has great potential for use in photovoltaic devices. In this Letter, we investigate the excited-state properties of a perylene–fulleropyrrolidine dyad using steady-state and femtosecond time-resolved spectr...

In this article we probe the nature of electronic interactions between the components of hybrid C60-carbon nanotube structures. Utilizing an aromatic mediator we selectively attach C60 molecules to carbon nanotube field-effect transistor devices. Structural characterization via atomic force and transmission electron microscopy confirm the selectivity of this attachment. Charge transfer from the...