Non-Uniformities in Thin-Film Solar Cells and Modules - Koishiyev, Galymzhan
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Thin-film PV technology due to its fast production line, large area panels and low material usage, is one of the most promising low-cost technologies. Due to their granular structure, thin-film solar cells are inherently non-uniform. Fluctuations inevitably occur during the multistep deposition process of large area thin-film solar panels and specific manufacturing procedures. Furthermore, non- uniformities can become more severe, or increase in size during the solar-panel's life cycle. Non- uniformities reduce the overall efficiency of solar cells and modules, and their effects therefore need…mehr

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Produktbeschreibung
Thin-film PV technology due to its fast production line, large area panels and low material usage, is one of the most promising low-cost technologies. Due to their granular structure, thin-film solar cells are inherently non-uniform. Fluctuations inevitably occur during the multistep deposition process of large area thin-film solar panels and specific manufacturing procedures. Furthermore, non- uniformities can become more severe, or increase in size during the solar-panel's life cycle. Non- uniformities reduce the overall efficiency of solar cells and modules, and their effects therefore need to be well understood. This manuscript focuses on the analysis of the effect of non-uniformities on small size solar cells and modules with the help of numerical simulations. Even though the 2-D model developed here can analyze the effect of non-uniformities of any nature, only two specific types of microscopic non-uniformities were addressed here: shunts and weak-diodes. One type of macroscopic non-uniformity, partial shading, was also addressed. The circuit model developed here is a network of diodes, current-sources, and transparent-conductive-oxide resistors.
Autorenporträt
B.S. in physics from the physics department at al-Farabi Kazakh National University 2000 - 2005; M.S. in physics/photovoltaics from the physics department at Colorado State University 2005 ¿ 2007; Ph.D. in physics/photovoltaics from the physics department at Colorado State University 2007 - 2010.