Semiconductor

direct current to alternating current, and then supply the generated electricity to the electric grid. The most established solar PV technologies are silicon-based systems, and more recently film modules is developed, this is consist of non-silicon semiconductor material, although thin films have a lower efficiency than silicon modules, but still it has very high efficiencies of up to 40% and in return the overall price for the panels required to produce equal amount of energy is lower, hence…

The visible pulse (gating pulse) enters the microscope, and together with the ultrafast electron pulses illuminate the nanostructure specimen (gold nanoparticle). The visible laser pulse kept at low power (~1.8 mJ/cm2) to avoid saturation. At the spatiotemporal overlapping, the coupling between the visible and electron pulses takes place. The signature of this coupling can be revealed by measuring the electron energy spectrum using the electron energy spectrometer attached to the microscope. The…

Aravind Panda Abstract— this paper introduces a novel type of 3-phase single stage dc-ac converter, which is controlled by sliding mode control, offers intrinsic step up abilities. Proposed inverter is designed with lesser number of solid state semiconductor switches and small passive elements. Sliding mode controller (robust controller) is designed to control this power converter in order to achieve high robustness, sustain any kind of line or load variations and achieve good dynamic response.…

“They didn 't understand what they were doing. I 'm afraid that will be on the tombstone of the human race” (Crichton 504). The expansion of science and research is a beneficial aspect of humanity as cures for diseases, food growth, and national/international security, can be discovered, solved, and utilized by furthering technological research. Having nanoids being used to heal serious injuries, curing major diseases instantly, or even having them maintain national security, may seem like…

An innovator, immensely driven or perfectionist - Steve Jobs was considered to have all of these qualities and he had the drive to be the best. Though Jobs founded Apple purely with the idea to produce computers, the company later branched out to make many other successful products such as the iPad, iPhone, iPod, and Mac as well. Steve Jobs creatively led Apple’s success with a drive and focus on harnessing technology to build innovative products that won customers by enriching experiences. The…

2.1 Silicon-Carbide (SiC) Initially, Silicon carbide (SiC) was accidentally introduced by Edward G. Acheson in 1890. Silicon Carbide can be stated as a chemical compound of Silicon and the carbon. Edward G. Acheson was running an experiment on the synthesis of diamonds. At that time, it was produced by a high temperature electro chemical reaction of sand and carbon. We can also find the silicon carbide very rarely in nature in very small amounts. Also Edward G. Acheson was the first person to…

The history of piezoelectricity evolution is over 120 years which was discovered by brothers Curie in 1880. They were Pierre Curie (1859-1906) and Jacques Curie (1855-1941). During the study of the generation surface electrical charge by applying pressure on some material, they found out an unusual phenomenon which was a voltage of opposite polarity was generated by pressure was applied on the crystalline minerals such as quartz. The amplitude of the generated voltage was proportional to the…

Abstract – Photocopiers make use of Toner (powder) to form the latent electrical image on the electrostatically charged drum. The paper has to slide over the drum during Xerography process and hence it picks up the toner. Vague issues cause the non-picking of toner particles (approximately 10%) and they are left over the drum. This non-picked toner is termed as Waste Toner (WT). As it adversely affects the quality of proceeding copies, this has to be removed from the drum. A cleaning blade made…

1. Introduction The company and country that has been chosen is Samsung and Korea. The purpose of this report is to show the a clearer information and clearer view of the company and country. The report will be taking about Company Background, Country Background, PESTLE Analyse, Porter’s 5 Forces, Strategric Recommendation and conclusion. 2. Company Background The type of company is Public, it served worldwide, the key product is Samsung applications, Mobile Phone, Television and Camera…

The Nanotube Introduction: Nanotubes, specifically the carbon nanotubes are just one of the handful of structures engineers and scientist use today that fall in the nanoscale category. Structures in the nanoscale category are usually between 1-100 nanometers, which one nanometer is one-billionth the size of a meter. A confusing yet beneficial property found in materials at the nanoscale is a concept call quantum called quantum mechanics. In quantum mechanics the laws of classic or Newtonian…