Friday 29 July 2016

Understanding the role of P-N junctions and the use of semiconductors. - Joshi


The STEM placement students are sending us weekly blogs all about their experience in the world of work! 


Work experience is great and it provides students with many benefits whilst gaining skills and helping choose the right future career path for pupils. Having work experience on a Curriculum Vitae will make a person stand out to employers as they will notice they have motivation and a real passion for work. It will also help to boost a students confidence in themselves!



See how Joshi's getting on at the University of Surrey! 



Week one - 

"Over the last week, I have researched the background for my project. This involved looking at the structure of solar cells and how they work, especially by understanding the role of P-N junctions and the use of semiconductors. 

I have researched different types of solar cells and the use of doping to create an electric field at the junction. My project involves the use of the SILVACO Atlas software to model the cross-section of solar cells so for the last few days, I have also been looking at some example codes to understand how the program works." 

Week two -  
"Over the last week, I have looked further into the different parameters in ATLAS as I need to make changes in some existing code to optimize it, so that it gives the same results as experimental data. 

This involved plotting the results from the existing code, figuring out what was wrong with it and trying to find ways to make the results better. 

To get familiar with the program, I also tried to map the structure of the solar cell into the code using sample code. This solar cell model is organic, so I have looked into the basics of how organic solar cells work. "
                                                                                         
                                                                                                                                              - Joshi

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