 |
Recently, Lund University of Sweden developed a 13.8%-efficient InP nanowire solar cell. According to news from Peking University, Xu Hongqi, a professor of the Thousand Talents Program at the Institute of Physical Electronics of the university, and scientists from Sweden and Germany Co-participated in this research cooperation, and gained important progress in the research of using epitaxially grown III-V semiconductor nanowire technology to produce high-performance photovoltaic devices.
The research results are based on InP nanowire array as the core photovoltaic device material. After optimizing the doping process and structural design, the scientists and engineers worked together to jointly achieve the results; the performance of the prototype device is much higher than that of the corresponding InP film. Photovoltaic devices made by the technology have the advantages of less material consumption, easy extension to higher performance multi-junction devices, compatibility with contemporary silicon processes, and the like.
Prof. Xu Hongqi's research group has done a lot of exploration in the development and research of new semiconductor nanowire photovoltaic devices in recent years. In particular, they recently proposed a photovoltaic device manufacturing process using epitaxially grown strained nanowire heterostructures (Nano Letters, 2010, 10: 1108-1112; Advanced Materials, 2012, 24: 4692-4706), obtaining international academic circles and Industry's attention. This process proposes the use of a strain-induced piezoelectric field to separate the electrons and holes generated by photoexcitation, replacing the doping required for making a pn junction in a conventional photovoltaic device process, and thus is expected to substantially increase the conversion efficiency of photovoltaic devices.
The above research work has been supported by national major scientific research projects and the National Natural Science Foundation.
The Carbon Crystal Heating Panel is a new kind of heating product. The heating meaterial is made from carbon crystal which is better than carbon fiiber. The heating effect is the best among the electric heaters.
The Carbon Crystal Heater has many advantages, such as clean, and beautiful looking, and not any pollution, and no noise.
The using of this heater is for example: a 20m2 room will need about 1500 - 2000w, the choose then can be 4pcs x 400w or 4pcs x 500w.
We are the biggest manufacturer in China of heating panels. Our Laiwu factory covers more than 130000m2, more than 200 employee, and annual output is now half million pcs.
Dexiang heater has all certificate needed, such as ISO, CE, ETL, etc.
We welcome all customer all over the world come to visit us and be friend !
Warmer Appliance,Infrared Radiant Panel Heaters,Floor Infrared Heater,Bed Mattress
Shandong Dexiang Electrical Technology Co.,Ltd , http://www.infraredroomheater.com