A new type of silica nanoparticles

Scientists nikon en-el3 have been working to find better materials and methods to create high-performance solar cells. U.S. scientists, a new study found that in silicon solar cells formed on the surface layer of silicon nanoparticle films can enhance the ability of its energy conversion and reduce the battery’s own heat and prolong life. Relevant papers will be published in “Applied Physics Letters” (Applied Physics Letters) on.

The study was conducted by physicists at the University of Illinois Munir Nayfeh leadership, mainly targeted at the ultra-violet absorption and transformation. In terms of traditional solar cells, ultraviolet light leaking out of line either directly or by absorption of silicon devices, but it is converted into heat instead of electricity, which may affect the service life. In 2004, published in the “Photonics Technology Letters” (Photonics Technology Letters) in a study, Nayfeh confirmed that the UV lines with the appropriate nano-scale particles nikon en-el4 effectively combined to produce electricity.

In order to achieve practical results, Nayfeh and his colleagues conducted a new study. They first use its own developed a proprietary technology to larger silicon switch is made of discrete nano-scale particles, they will be issued in different colors of fluorescence. Then, the researchers of these particles dispersed in isopropyl alcohol and wipe the surface of the solar cell. When the alcohol evaporates, the surface of the battery will eventually form a tight layer of nano-granular nikon en-el4a films.

The researchers found that if the solar cells covering the surface is the thickness of 1 nm blue fluorescent nano-particles thin-film, the entire cell will be able to transform more than 60% of the UV lines, but the visible light, the conversion rate of increase less than 3%. However, if the battery is the thickness of the surface covered by 285 nm red fluorescent particle film, then the ultraviolet ray can increase the conversion rate of 67%, while the enhancement of visible light can reach 10%.

Nayfeh that the performance of solar cells such improvements should be more attributed to the improvement of the battery voltage rather than current. He said, “Our study conclusions indicate that charge transfer within the thin film and nano-particle interface olympus li-10b, the importance of the amendment.”

Nayfeh said that the new coating process can easily incorporated into the current solar cell manufacturing process, while the costs are not an additional increase.

Battery explosion of counterfeit products

August 21 reported marked as “Nanfu mercury-free alkaline olympus li-12b battery” with the brand on the 1st Battery explosion two, Fujian Nanping Nanfu Battery Co., Ltd. of quality after-sales service engineers, 22, flew to Xi’an, an explosion occurred on the 19 battery were identified to determine the mark as “Nanfu mercury-free alkaline battery” and really Nanfu battery is quite different; identified the date of the explosion battery counterfeit products.

The engineer also reminded the public to purchase batteries, choose a trustworthy shop, especially in medium and large shopping malls, supermarkets to buy, but also attention to obtain and preserve the samsung sb-lsm160 shopping vouchers, as the late activist credentials.