RRJ#1

Reference
LePedus, M (2006, March). Solar-cell fab capacity rising
http://www.eetimes.com/electronics-news/4058981/Solar-cell-fab-capacity-rising

Summary
This article describes the development of solar cell. Many companies are studying and competing for how to increase the efficiency in solar cells. In order to save the cost, the solar cells are becoming smaller and smaller. This can not bring huge profits but also alleviate the risk of decreasing resources.

Reaction
　I have taken the class which is about solar cells in university; the class talks about the theory and process of solar cells. A solar cell uses a silicon plate to be its base, then is coated with several metals and semiconductors, and that makes it absorb the sunlight; it will produce electric current, the translation rate is about 15%; to increase the efficiency is the most important goal.
　The risk of resources has been becoming an important issue. In order to save resources, the research of alternative energy has become popular; one kind of alternative energy is the solar cell. The principle is to combine different dielectric materials which make the solar cell absorb lights and produce electricity. Although the research is proceeding, I think it will be a trend to become a new energy.