We have demonstrated that a single photoelectron can be trapped, stored, and its photoelectric charge detected by a source/drain channel in a transistor. The electron trap can be photoionized and repeatedly reset for the arrival of successive individual photons. This single-photoelectron transistor, operating in the l 51.3 mm telecommunication band, was demonstrated by using a window-gate doubl...

With the miniaturization of transistor size, fabrication of transistor with lithography technique is a foreseen problem. It is possible to routinely create semiconductor nanocrystals whose dimensions are much smaller than those can be realized by lithography techniques using colloidal chemistry. The size of the nanocrystals can be varied easily by varying the process parameters to study the qua...

Single-electron transistors (SETs) are used to perform sensitive charge measurements and are widely discussed as possible components of dense integrated circuit. An exact model for a single-electron transistor (SET) was developed [1] early, within the circuit simulation package SPICE; it's constituted by two tunnel junctions, with two gates coupled to the island. We will present here a descript...

The first experimental study of a new nanometer field-effect transistor with a single barrier in its one-dimensional channel is presented. At low temperatures and as charge density in the channel was varied, nine reproducible periodic oscillations of conductance, in addition to 2e2/h conductance plateaus, were observed before the onset of the first 2e’/h conductance plateau. It was found experi...

Semiconductor tetrapods are three-dimensional (3D) branched nanostructures, representing a new class of materials for electrical conduction. We employ the single-electron transistor approach to investigate how charge carriers migrate through single nanoscale branch points of tetrapods. We find that carriers can delocalize across the branches or localize and hop between arms depending on their c...

The single-electron transistor is the fastest and most sensitive electrometer available today. Single-electron pumps and turnstiles are also being explored as part of the global effort to redefine the ampere in terms of the fundamental physical constants. However, the possibility of electrons tunnelling coherently through these devices, a phenomenon known as co-tunnelling, imposes a fundamental...

Multi Tunnel Junctions (MTJs) have attracted much attention recently in the fields of Single-Electron Transistor (SET) and Single-Electron Memory (SEM). In this paper, we investigate a nano-device structure using a two one dimensional array MTJs connected to the basic Single Electron Circuits, in order to analyze the impact of physical parameters on the performances and application of this stru...