The study led the University of California professor of electrical engineering and computer science Alijiewei indicates that, compared to traditional silicon and thin-film batteries, nano-column asus a42-a3 battery，asus a42-a4 battery technology allows researchers to use more inexpensive and low-quality materials. More importantly, the technology is more suited for the thin aluminum foil can be twisted to produce solar panels, thus reducing manufacturing costs. If successful, its production costs will be as low as single crystal silicon solar panel 1 / 10.
This solar cell is a uniform 500 nm by high-CdS embedded in cadmium telluride thin films made of these two materials are often used in thin-film solar cell semiconductor. Jie Wei and his colleagues in the “natural materials” published reports that such cells will convert solar energy into electrical energy efficiency of up to 6%. Prior to this, scientists are also using the design concept of this column, but the method is more expensive, and the photoelectric conversion efficiency of less than 2%.
In the traditional solar cells, silicon absorbs light and produce free electrons, which must be trapped electronic defects or impurities in the material to arrive before the circuit. This requires the use of very pure, expensive to manufacture high-performance crystalline silicon asus a42-m6 battery，asus a42-v6 battery photovoltaic devices.
Nano-column assumed the duties of silicon, nano-columns around the material to absorb light and produce electronics, nano-columns will be transported to the circuit. This design to improve efficiency in two ways: tightly encapsulated nano-columns between columns to capture the light, helping around the material to absorb more light; e-a very short distance across the nano-columns, so there is not much opportunity to receive trapped in the material defects. This means that you can use low-quality low-cost materials.
Some scientists using different nano-structure to the production of such solar cells. For example, Harvard University chemistry professor Charles Ripoll has developed a silicon-containing silicon core and concentric layers of varying nano-lines; University of California, Berkeley, asus a42-w1 battery，asus a42-w3 battery,Peidong Yang was developed with a zinc oxide nanowire dye-sensitized solar cells . These nano-wire photoelectric conversion efficiency of solar cells has reached 4%.
Jie Wei and his colleagues produced the first use of nano-column cells via oxidation of the aluminum foil, creating a cyclical distribution of 200 nm wide holes, these holes as a template for the growth of CdS crystals upright. Then, cadmium telluride, and the top electrode decorated with copper and gold films. They are connected by a glass plate and battery, or polymer solution into its top so that it bent.
Georgia Institute of Technology professor of materials science and engineering at Wang Zhong-Lin commented that the nano-materials engineering design and manufacture of flexible solar cells flexible and efficient technology integration with a variety of soft substrate, which is an exciting progress. U.S. National Renewable Energy Laboratory is responsible for solar physics research chemist Arsenault Venzke said that the battery with silicon, cadmium telluride and other materials made of flexible thin-film solar cells to compete, its selling point may not be in its flexibility, acer btp-43d1 battery,acer btp52ew battery,but the cost advantage.
Currently, researchers are exploring the use of the material can improve conversion efficiency. For example, the top of the copper - gold layer is only 50% of the transparency, if it can have all of the light through, its efficiency can be doubled. Therefore, researchers are planning to use such as indium oxide transparent conductive material. In addition, the use of other semiconductor materials as nano-column and the surrounding materials, researchers are also under consideration, so that the production process can be suitable for a wider range of semiconductor materials, other material combinations may also be more efficient, more important point is cadmium acer btp-58a1 battery,acer btp-59a1 battery toxicity can be avoided.