Thesis Solar Cell

Thesis Solar Cell-18
The solar resource is the most abundant renewable resource on earth, yet it is currently exploited with relatively low efficiencies.

The solar resource is the most abundant renewable resource on earth, yet it is currently exploited with relatively low efficiencies.To make solar energy more affordable, we can either reduce the cost of the cell or increase the efficiency with a similar cost cell.To experimentally validate these results, we use a Bragg stack to restrict the angles of emitted light.

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In this thesis, we consider several different optical approaches to achieve these goals.

First, we consider a ray optical model for light trapping in silicon microwires.

While the results in Ga As are interesting as a proof of concept, Ga As solar cells are not currently made on the production scale for terrestrial photovoltaic applications.

We therefore explore the application of angle restriction to silicon solar cells.

And building the quality of standard meh ppv and engineering.

Fl via nogueira received her guidance of gold nanorods on meh ppv and simulation study. An experimental study of the specific contact resistivity of indium contacts to n-Cd Te is made to investigate the defect structure and the effect of such native defects on the ohmic contact to n-Cd Te. Periodic nano and polymers happen to be a plasmonic nanostructured organic solar panels and. The influence of these factors depends on the design configuration of the solar cell array, so it is important to search for solar cell arrays that are tolerant of such defects and give satisfactory performance with a wide range of defect structures.Mathematical analyses presented here are found to be useful to calculate power loss of an array caused by randomly distributed defects.While our calculations show that Auger-limited cells give efficiency increases of up to 3% absolute, we also find that current amorphous silicion-crystalline silicon heterojunction with intrinsic thin layer (HIT) cells give significant efficiency gains with angle restriction of up to 1% absolute.Thus, angle restriction has the potential for unprecedented one sun efficiencies in Ga As, but also may be applicable to current silicon solar cell technology.Finally, we consider spectrum splitting, where optics direct light in different wavelength bands to solar cells with band gaps tuned to those wavelengths.This approach has the potential for very high efficiencies, and excellent annual power production.Three significant topics in solar cells are covered: 1) solar cell array design problems, 2) a new deep-level impurity characterization technique, and 3) discussion of Cd Te as a solar cell material.The performance of a solar cell array is greatly influenced if shading, open-circuit defects, or short-circuit defects are present.

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