Highly Efficient Solar Cells Could Result From Quantum Dot Research

It was recently discovered that hot electrons can be transferred from photo-excited lead selenide nanocrystals to an electron conductor made of titanium dioxide. Their discovery points the way toward more efficient solar cells. Credit: The University of Texas at Austin by Staff Writers.

Austin TX (SPX) Jun 25, 2010

Conventional solar cell efficiency could be increased from the current limit of 30 percent to more than 60 percent, suggests new research on semiconductor nanocrystals, or quantum dots, led by chemist Xiaoyang Zhu at The University of Texas at Austin.

The scientists have discovered a method to capture the higher energy sunlight that is lost as heat in conventional solar cells. The maximum efficiency of the silicon solar cell in use today is about 31 percent. That's because much of the energy from sunlight hitting a solar cell is too high to be turned into usable electricity. That energy, in the form of so-called "hot electrons," is lost as heat.

One of the big problems with solar power has been that it costs more than electricity generated by conventional means. But some experts think that, under certain circumstances, the premium for solar power can be erased, without subsidies or dramatic technical breakthroughs.

Energy is the main source of life on the planet Earth. With the development of human being and the society, human have completely ignored the fact that energy might disappear too. We have kept on exploiting Energy to our level best and have utilized every bit of it with the growing demand. The situation has not only led to disastrous atmosphere but has also eroded the natural reserves of the planet. It has been finally acknowledged that the energy will soon come to an end leaving complete set of darkness all around. This will not just destroy the living being but also will eradicate the existence of life on earth.

Understanding the following facts, we have slowly tried to move ourselves to dependable source of energy which can be renewed after every consumption.

Solar energy has brought a new life to the society and people across the globe have finally understood its uses and benefits.

Coretech Power is one of those primary companies to provide the world with Solar Based technology and light up the world all over again. With growing supply of solar products of the company, it is rapidly growing and reaching out to places.

Solar energy has changed the life style of the society and the remarkable efforts made by Coretech Power cannot be overlooked.