“ Why can't the window glass, become a manufacturer of solar garden light panels solar street lamps? ”
the sci-fi world problem, or is going to end. Recently, & other; Quantum cutting solar panels & throughout; Become a hot topic of solar energy. Media reports, the concept of physics research is represented by the Chinese Academy of Sciences, dalian member Wu Kaifeng ChuDu is put forward, and published in the journal nano letters.
geometric concentrating equipment and fluorescence concentrated who better?
solar equipment, divided into two categories: geometric concentrating equipment and fluorescence spotlight.
now, most countries put the equipment into the use of solar energy collector is geometric concentrating equipment, it needs real-time follow the incident Angle of the sun to end focusing. Geometric concentrating equipment capital is relatively high.
and Wu Kaifeng concentrating equipment, discussion of the fluorescence by W. H。 Weber put forward at the beginning of 1976 degrees, it is a kind of it can slow light reflection and scattering of various Angle real-time pursue sunlight equipment condenser, not demand, relatively brief and can capture large area of solar energy. As fluorescent type solar panels are made of cheap polymer material, glass, and a few of the fluorophore, so on capital is far lower than the main solar panels now.
but now fluorescent equipment to concentrated power, the condenser is far behind the geometry.
quantum cutting solar panels is how end?
quantum cutting is a kind of unique optical phenomenon, according to the effect of plate material, can absorb a high-energy photons, can release together two low-energy photons, satisfied with the rules of conservation of energy.
Wu Kaifeng team discussion, according to rare earth metal ytterbium doped nanocrystalline materials, preparation of the high power solar panels prototype devices. They go through many experiments, the fluorescent power up to 164% of the material, the fluorescent type solar panels, could theoretically be over 200% of the fluorescence quantum efficiency.