How a Silicon Heterojunction solar cell is made? MRS SciVid-2017 (winner)

Post author:Jesús Capistrán
Post published:January 23, 2020

Looking for PV-Lab (Photovoltaic Labs ) on the web I found this video which explains the process of the development of silicon (Si) solar cells. It seems interesting so I want to share it with you. The most efficient silicon solar cells in 2020 are developed using Si-heterojunctions (26.7% lab and 24.4% module) [1]. The junction is formed between the crystalline silicon (Eg = 1.12 eV ) and amorphous silicon (Eg = 1.75 eV) deposited on each face of the wafer. This difference in energy gaps gives the name heterojunction to this technology. https://youtu.be/tzQw1e0gP_4 How a silicon solar cell (2017)…

DIY Culture: Repair and reuse a smartphone

Post author:Jesus Capistran
Post published:January 19, 2020

The DIY or Do It Yourself culture is a great way to fight against the programmed or built-in obsolesce. I have owned this phone for 4 years; since then I have kept it with me almost everywhere. This Technology has helped me to reduce wasted time in routine tasks like doing lines in the bank. This is my second battery replacement, two years ago I embrace the international battery replacement program of Apple. At that moment I realize that I will be able to keep my phone for one more year. This movement was incredible because I could start to…

How to add math on your blog : MathJax + Blogger

Post author:Jesus Capistran
Post published:January 12, 2020

This tip is useful for engineering and science bloggers who want to share their knowledge on the web. Here is the way I found. I recently tested it on the Blogger system, the purpose is to share science tutorials with you using the correct math way. Let's do it! Step 1: Add a new gadget to your blog and copy and paste the following script. <script src="https://polyfill.io/v3/polyfill.min.js?features=es6"></script> <script id="MathJax-script" async src="https://cdn.jsdelivr.net/npm/mathjax@3/es5/tex-mml-chtml.js"></script> Step 2: Write code in a new post following using latex language inside: Inline: \( latex code here \) Paragraph: \[ latex code here…