Organic Field Effect Transistors : An Analysis

What is a voltage-gated sodium ion channel? What is it made of? What is its function?

The use of nano-materials and extreme precision micro-engineering has the potential for great improvement in the world of electronics and information technology by providing smaller, faster, and more powerful computers and this has been at the forefront of the nanotechnology commercialization . Great examples of how nanotechnology is currently being used in these fields are products such as processors, data storage, and memory components made with nano-materials, TVs, monitors and even smartphone screens that use organic light-emitting diodes (OLED), and waterproof electronics such as smartphones due to the application of nano-coatings

Because of their small size, ISFETs can be miniature diagnosis devices, allowing low sample consumption combined with a rapid response. ISFETs make the selective detection of certain ions in complex samples more efficient and can open

Buckminsterfullerene or more commonly known as bucky-balls is one of the types of carbon allotropes. It is a spherical fullerene molecule containing 60 carbon atoms. The shape of a bucky ball resembles that of a typical soccer ball and the specific name for the structure is truncated icosahedron. It is formed of twenty hexagons and twelve pentagons with a carbon atom lying at each vertex. The name buckminsterfullerene was named after the inventor Buckminster fuller, because one of his designs of a geodesic dome structure was very similar to that of the 60 carbon fullerene. So the inventors named him after the allotrope. However, Fuller and the general public tend to call them buckyballs. Theoretical Bucky balls were developed in the 1970’s

Abstract — Using Moore’s law, we will continue to get abundant transistors which only will be limited by the amount of energy consumed. Energy efficiency can be improved to many orders of magnitude with the help of Near Threshold Voltage (NTV). There are various Design techniques required for reliable operation on a wide range of input voltage – from very low to sub threshold region. Coming to the systems designed for NTVs, they can select their modes of operation dynamically from very high performances, to high efficient energy modes and also to lowest power.

More detailed effects from sulfurization and cobalt doping could be observed from band gap calculation and analysis. The direct band gap energy was estimated through plotting (αhυ)2 versus energy hυ. Corresponding

During the last two decades, organic semiconductor lasers (OSLs) have attracted much attention due to their advantageous properties such as wavelength tunability in the visible range,1 low cost, flexibility,2 and large area fabrication.3 These properties make them good candidates for a range of applications including sensing,4 spectroscopy,5 and optical communication.6 However, only optically pumped organic lasers have been realized so far, and the demonstration of an electrically driven organic laser diode still remains a very challenging task. To achieve electrically pumped OSLs, much effort has been focused on the reduction of the energy threshold of optically pumped organic lasers by enhancing the gain medium properties7,8 and

Besides the modified MOF for supercapacitor, I also developed self-assembly MOF layer with controllable number of layers for lithium ion batteries. Different with organic solution on which molecules self-assemble together to form a single layer, single layer MOF was assembled on glassy carbon by controlling system pressure. When the pressure was a little lower than atmospheric pressure, MOF began to ‘escape’ from solution and assembled a single layer on glassy carbon substrate. Multilayer MOF film could be achieved easily by repeating this process with desired times. The multiple nanopores in MOF provided excellent ion transportation channels and storage sites and showed strong potential for lithium ions batteries. What’s more, my interest in materials grow stronger and I was motivated to pursue this beautiful, interesting and important research field, nanomaterials and their applications, as my career goals.

Three types of linear and planar-structured donor (D)–acceptor (A) type alternating copolymers were synthesized by incorporating intrachain noncovalent Coulomb interactions, based on 2,5-bisthieno[3,2-b]thiophene-1,4-bis(decyltetradecyloxy)benzene and benzothiadiazole (BT) moieties. The chain linearity and systematic adjustment of interchain organization was achieved by the incorporation of different number of electronegative fluorine atoms onto BT, which significantly affected the frontier energy levels, film morphology, and the resulting charge transport properties. Bimodal semi-crystalline orientation and charge carrier transport properties were studied by grazing incidence wide-angle X-ray scattering (GIWAXS) and polymer filed effect transistor (PFET) characteristics measurements. The hole mobility as high as 0.1 cm2/Vs in PFET was measured for poly(2,5-bisthieno[3,2-b]thiophene-1,4-bis(decyltetradecyloxy)benzene-alt-4,7-(5,6-difluoro-2,1,3 -benzothiadiazole)) (PPDTT2FBT), suggesting a strong self-organization in the linear configuration with conformation lock with the help of fluorine atoms. The linear and difluorinated PPDTT2FT also showed the highest power conversion efficiency (PCE, 6.4%) by blending with PC71BM, but showed a poorer photovoltaic performance compared to the wavy-structured counterpart, PPDT2FBT, reported previously. The mainly edge-on orientation of PPDTT2FT and poor blend film morphology attributed to the moderate PCE in the blends. Fine modulation

VA CNT synthesis and VA CNT membrane fabrication procedures were followed from the protocols of our previous study [28]. VA CNT synthesis was based on the water vapor assisted chemical vapor deposition (CVD) process. VA CNTs were grown on a Fe (1.5 nm)/Al (15 nm)/Si wafer. After the coating, the Si wafer was cut into rectangular chips, with the dimension of 9 mm width and 9 mm length, and the chopped chips were inserted in a cylindrical electric furnace of a CVD machine. Carbon source was high-purity ethylene gas (99.99%) at a flow rate of 100 sccm (standard cubic centimeters per minute indicating cc/min at a standard temperature and pressure). Argon (99.999%) was used as the carrier gas at a flow rate of 300 sccm. Hydrogen gas (99.999%, 200 sccm) and water vapor (50 sccm) by argon purging were added to the gases stream. Reaction was performed at 750 °C for 40 min.

In order to analyze the surface state of the emitter, an exact evaluation of the work function from the current-voltage

Temperature dependence of In2O3 NC TFT devices To know the charge transport mechanism, the relationship between the mobility and temperature was investigated. The temperature dependence of the mobility takes the general form

An organic semiconductor is an organic material with semiconductor properties. They can be divided into single molecules, oligomers or polymers. Many organic materials are very colorful and these materials interact very strongly with light. Due to this reason they are used in applications like light emitting diodes and photo voltaic cells. Although these materials are not intended to replace silicon-based technologies, organic semiconductors can help to realize fully flexible devices for television displays,

The purpose of this paper is to give a greater understanding of the semiconductor world, for Physics 100 students who have a little knowledge of electronics. I will cover conductors, insulators, semiconductors, and the operation of a diode and a transistor. The reason that it is important to understand these devices is the vast effect that they have had on our modern world. Our lives are filled by electronics, especially in this computerized age that we live in, and I have found that a knowledge of some electronics has greatly helped my understanding of the many electronic devices that we deal with on a daily basis.

varactor diode, Cj is a function of the reverse bias voltage. During this application, the