Black silicon solar cell conversion efficiency reached 18.2%

According to physicists organization network reported recently, the national renewable energy laboratory (NREL) scientists using nanotechnology, make the conversion efficiency can reach 18.2% of black silicon solar cell. This number is quite competitive, and the relevant technological breakthrough also to reduce the cost of solar energy use take a big step. Related research papers published in recent "nature, nano technology" the online edition of the journal.

Normally, manufacturing solar cell need coating additional antireflective coating to reduce energy loss, but this will significantly improve the cost. In order to solve this problem, tailored NREL a nano structure of the surface, can ensure that solar cell can be effectively collect generated power. The researchers in silicon chips made on the silver nano island, and its briefly dunked in, to make every square inch of the silicon wafer surface formation billions of nanometer size holes. These holes than hit their light and small,grid tie inverter  so the sun cannot identify surface density sudden change, thus can reduce the unnecessary sunlight reflection, but also can save the cost of the corresponding. At the same time, scientists can still through the control nano structure of the carrier composite and surface chemical composition, realize a record black silicon solar cell transformation efficiency.

Scientific research personnel through the experiment discovered, surface area is increased in the auger recombination process will limit most nano structure solar cells photon gathered together, and this kind of generally occur in the cell contains too much when adulterant. So they sought to reduce the nano structure within the dopant concentration to suppress the occurrence of this process, and establishes the transformation efficiency can reach 18.2% of black silicon solar cell. It almost on the whole solar spectrum to make the ideal response.

The researchers said the work no matter for traditional solar batteries are still based on nanometer line or nanometer particle emerging solar battery has a great influence, because it was the first to show with nano structure of the semiconductor also can be made into the good performance of solar cell. The next step they also will be devoted to the achievements of the industrial practice, and tried to make a battery of the transformation efficiency more than 20%, then in more frivolous solar battery on nanometer technology related to the expansion of application.

Shandong SangLe solar energy co., LTD. And Japan vector battery total industry in shandong jinan corporation signed a comprehensive cooperative frame agreement. The two sides will in advanced solar thermal utilization technology especially flat plate solar collector and system technology and product development promotion make further cooperation, carries on solar high-end product development and promotion. The jinan municipal party committee member of standing committee of the people's government of jinan city vice mayor ZhangZongXiang, jinan city high-tech industrial development zone management committee director SuShuWei of shandong academy of sciences and the leadership and the company leadership common attended the signing ceremony.

Vector battery total industry corporation was founded in 1941, is the world's top 500 enterprises, in automobile, electronic, new energy world-class core technology and equipment, the vehicle wiring harness products market share the world first, as high as 30%. The subordinate company vector battery resources co., the main development and production of air-conditioning, solar products, solar energy and air, gas, power inverter combined with equipment and high temperature field production equipment, in the new energy field has a strong research and development capabilities and technical reserves, in solar energy and air can, gas can integrated direction and in high temperature field has the world advanced technology, the high-end product market competitive advantages, in Japan's domestic market share up to 90%.

Shandong SangLe solar energy co., LTD. Is China's solar energy industry leading enterprises, in shandong province academy of sciences as the backing, positive for achievements, promote the enterprise core competitive ability, walked out of a science and technology innovation to promote industrial development road, forming a series with completely independent intellectual property rights of technology and products, digital sensor, fission confined and fully automatic solar water heater production equipment technology many products listed in the national, provincial and municipal science and technology projects, fill a number of domestic technical blank. In 2009 SangLe vacuum tube solar energy water heater single-brand sales volume of 1 million, will China solar thermal utilization industry into a new height; In 2011, SangLe solar energy in the national construction of the eight production logistics base all be born, vacuum tube solar water heater production in the world.

SangLe - vector battery for cooperation, between the two countries is solar energy industry of between the power-and-power union and the parties to the contract is in advanced solar energy technology for international cooperation, the breakthrough in the major step, will both for the future in high-end solar hot water product development and promotion of positive influence, and for the future development of all-round cooperation lay the foundation. At present in flat solar inverter energy water heater field, SangLe is average annual growth rate of 200%, will SangLe with vector battery cooperation as an opportunity to vigorously develop flat solar energy products, two years and vector battery force make the Asian largest, five years make the world's largest flat plate solar water heater production base.