The most magical solar paint PK solar cell

Magic solar paint PK solar cell

Magic solar paint PK solar cell

December 21, 2011

[China paint information] researchers have successfully developed "solar paint", which is made of quantum dots and has similar properties to multilayer film solar cells. Solar cells are complex and expensive, plus the climate is cold and expensive, and it takes a lot of time to configure. However, the solar paint can be easily applied to any object surface, such as the roof of a house, and it can easily generate photocurrent

in short, quantum dots are crystalline semiconductors, which are different from the corresponding bulk materials in properties. They have unique characteristics that are not greater than 0.5% of the load indication; Optical and electrical properties - its discrete properties can be translated into quantum behavior. These tiny crystals with diameters ranging from 2 nm to 10 nm were added to the dye mixture. Researchers applied three independent quantum dot dyes on the basis of cadmium sulfide, cadmium selenide and titanium dioxide, which are mostly used to make most of today's commercial dyes. However, compared with the ordinary coating sprayed with a specific color of the fence, quantum dot coating shows unique optical and electrical properties

quantum dots have been used in transistors, lasers, LEDs or solar cells. Quantum dot solar cells require time for compact micro crystal lamination, which is generally considered to be in the range of 0.001~20 in/Min (1in.=2.54cm) is an expensive technology. On the contrary, the application and preparation of solar paint are as convenient as traditional paint. Of course, its conversion efficiency is also quite low - so don't expect any change in the result. It's only 1%, which can't be compared with the conversion rate of multilayer quantum dot solar cells of at least 5%

relevant reports show that researchers from the National Renewable Energy Laboratory (NREL) of the United States have made a solar cell based on quantum dots for the first time, and the external quantum efficiency of the cell exceeds 100%

scientists are taking the next key step. They hope to improve the conversion efficiency of the battery by using other semiconductor materials with higher absorption range, and further optimize the other two components of the solar cell array - conductive hole layer and counter electrode network

although the performance of solar coatings is not competitive, this technology is amazing. Researchers hope that this technology can be commercially developed in the near future. It will be applicable to DIY projects or large-scale low-cost solar projects. By then, the whole block will see solar paint

at present, researchers say their goal is to develop solar coatings with long shelf life. They have conducted performance tests in the laboratory for several days to a week, and found that its performance is stable only when it is placed in the dark. Supplementary tests to study the long-term stability of paints with different components are also under way