Indium

junction producing the lowest current. Therefore, current density, which has an inverse relationship with bandgap energy, should ideally be equal between the junctions. However, multijunction designs are intrinsically based on a range of bandgaps, so material selection involves a compromise between matched current densities and ideal coverage of bandgaps. Layer thickness can be optimized to minimize losses [7]. Power conversion efficiency is defined as the ratio of electrical power output from…

The world population increases every day, and so does the need for energy. The only problem is that much of the energy society uses is non-renewable, meaning once a source is diminished it can no longer be used again. The solution is to use the most abundant energy source that burns bright in the sky every day, the sun. The energy given off by the sun can be harnessed to create electricity, and that electricity can be stored for later use. According to the website Altenergy, “The average star,…

I. Science Fair Question What is the speed of light in gelatin? II. Background Research Did you ever wonder how the speed of light is measured? This paper will discuss how the speed of light is measured. The terms that will discussed in this paper are the law of refraction, trajectory, Snell’s Law, and the index of refraction. Snell’s Law gives the relationship between angles of incidence and refraction for a wave impinging on an interface between two media with…

Wind and solar energy has abundant and free resources as shown by statistic gathered from IPCC (2007), WWEA (2013) and REN21 (2013). Wind and solar as part of renewable energy, should be optimized in order to balance world vast growth in energy demand. Driver of Renewable Energy Development Stabilizing climate impact by reducing carbon emission from fossil fuel use. Ensuring stability and security of energy supply to all part of the countries. Abundant and sustained energy resources. Expanding…