Recently, Soitec SA, headquartered in Bernin, France, announced the launch of the industry's first four-junction solar photovoltaic cell. Fraunhofer ISE (Fraunhofer ISE), the headquarters of the co-developer's headquarters in Freiburg, Germany, confirmed that the highest conversion efficiency of this type of photovoltaic cell has reached 43.6%.
Soitec said that when the solar light concentration is 319, the efficiency of the photovoltaic cell can reach 43.6%, and pointed out that when the solar light concentration is between 250-500, this type of battery efficiency will exceed 43%. Soitec expects that the four-junction technology will exceed the efficiency of three-junction photovoltaic cells.
Soitec CEO André-Jacques Auberton-Hervé stated: "The efficiency improvement is an important step beyond the traditional photovoltaic economy. This remarkable result can bring tremendous value to our solar energy sector and can validate our strategy in the solar market. And business model."
“By working with two of the world’s top research institutions, Fraunhofer and the Leti, we have made significant progress in the short term. In the future, this concept will continue to develop and it is hoped that by 2015 solar cell conversion efficiency will be increased to 50%.â€
Design contains two dual junction batteries
The new four-junction design uses two twin-junction subcells grown in a separate III-V composite composite that enables the bandgap composition to capture a wider range of solar spectra. Soitec uses its patented semiconductor bonding and layer-based transfer technology to develop the new battery, which has been used in the semiconductor industry for decades.
The new battery was jointly developed by Soitec, Fraunhofer ISE and the Helmholtz R&D center for materials and energy. CEA-Leti, headquartered in Grenoble, France, also participated in the development of the project. (Translator: Krystal)
POM plastics,lalso named Acetals(paraformaldehyde) (semel - Stirling),
English name: Polyoxymethylene (Polyformaldehyde),POM mainly has antistatic POM, conductive POM,POM+PTFE SHEET.
POM plastics (polyformaldehyde resin) definition: polyformaldehyde is a linear polymer with no side chain, high density and high crystallographic properties.
According to the different chemical structures in the molecular chain, there are two kinds of homoformaldehyde and copolymerization.
One of the synthetic resin, also known as polyformaldehyde resin, POM plastic, and steel, etc.
POM/Acetals Plastic is a kind of white or black plastic granule with high hardness, high steel and high abrasion resistance.
Mainly used for gears, bearings, auto parts, machine tools, instruments, etc.
Advantages:
1. Excellent abrasion and creep resistance property;
2. High dimensional and shape stability;
3. Retains toughness under low temperature (-40°C);
4. Resistant to organic solvents; Insoluble under normal temperature;
5. Thermal deformation temperature is close to that of PC plastic, PTFE plastic and nylon plastic;
6. High compressive strength, second only to Glass Fiber;
7. Good sliding property; wear resistant; non-water absorbent;
Disadvantages:
1. Not resistant to acids, especially to mineral acids;
2. Not resistant to UV;
3. Not self-extinguishing, and thus must be kept away from fire;
4. Not resistant to impact.
Applications:
1. Sliding parts: bearing and lining, roller, conveyor chain;
2. Precision mechanical components: gear, cam, coupler, idler roller;
3. Waterproof components: impeller, pump case, gasket;
4. Electrical parts: guide pulley, spring lock;
5. Fixture, lever, handle, knob and other jig materials.
Modified POM/Acetals Plastic
reinforced POM/Acetals Plastic
Main reinforced material such as glass fiber, glass or carbon fiber, and glass fiber is the most commonly used, the enhanced mechanical performance can be improved 2 ~ 3 times, heat distortion temperature increased by more than 50 ℃.
High lubrication POM POM/Acetals Plastic
In POM, graphite, F4, molybdenum disulfide, lubricating oil and low molecular weight PE are added to improve the lubrication performance
Combustion characteristics: easy to burn, continue to burn after fire, the upper end of the flame is yellow, the lower end is blue, and the melting drop, the strong irritating formaldehyde flavor, the fish smell
Specification: the thickness of sheet material can be produced from 0.3mm to 1.9mm, the normal width is 600mm, the width cannot exceed 1200mm, the length is not limited.
The thickness of plate can be produced from 2mm to 180mm, the usual specification of 2-10mm is 1000mm* 2000mm, and the commonly used specification of 10-180mm is 600*1200mm.
POM/Acetals Plastic can also be customized according to requirements, and the width cannot exceed 1200mm, and the length is not limited.and The diameter of the rod can be produced from 2mm to 250mm, the length is 1 meter, and POM/Acetals Plastic can be ordered to be more than 3 meters in length.
Color: Black ,white beige and brown, can also be made another color, and the color order is 500KG.
Modified varieties: can be added to the glass fiber, copper powder, and molybdenum disulfide enhancement plate according to customer's requirements.
Add antistatic agent to the permanent plate, the volume resistance value of 10 to the 6 to 9 power.
Add flame retardant to the flame retardant board from UL 94v-0 to HB combustion grade, and other modification requirements are required to customize various additional properties according to the actual use of the customer.
Product certification: most environmental certification reports and safety reports for raw materials, such as SGS report, CTI report, UL report, MSDS safety information, etc.
POM/Acetals/Derlin Plastic Sheet
POM Plastic Sheet,Copolymer Acetal Sheet,Acetal Plastic Rod,Extruded Antistatic POM Sheet
Dongguan Noegem Plastic Products Co.,Ltd , http://www.noegempLastic.com