solar cell

Norwegian researchers have used a year-on-year approach, considering the combined effect of temperature, humidity, and ultraviolet irradiation, to assess the degradation rate of polycrystalline modules with a temperature coefficient of -0.43%, mounted with an approximately 10-degree tilt, and located in eastern Norway. They found that these modules degrade in the range in the range of 0.1-0.19% per year, which is 0.4% less than panels operating in other climates.

German manufacturer Robert Bürkle GmbH has obtained a first instance judgement preventing a rival company from producing equipment that infringes on its patents. The decision of the Intermediate Peoples Court in China is not yet final, and the rival company has already filed a complaint against the ruling.

Gujarat-based solar panel maker Solex Energy will buy the production equipment from China’s Jinchen Machinery. The company also has plans for a cell line.

Backsheet failures have plagued the industry, causing hefty financial burdens to many asset owners. DuPont has launched a product it says allows for easy repair of modules.

Researchers in South Korea have fabricated a cadmium-free heterojunction kesterite solar cell based on a zinc sulfide oxide Zn(O,S) buffer layer. They used a one-minute ammonium sulfide (NH4)2S treatment process for surface cleaning and passivation of the cell’s CZTSSe absorber.

NASA scientists have partially cleaned up the solar modules of the Insight lander operating on Mars, by using grain sands collected nearby and trickling them on the panels during the windiest time of the day. This handmade technique has made it possible, according to them, to increase the PV array’s yield of about 30 watt-hours of energy per ‘sol,’ or Martian day.

Defect engineering for silicon heterojunction solar cells has come a long way. But Matthew Wright, a solar researcher at the University of New South Wales, asks whether these proven efficiency gains could be applied more effectively.

The solar cells for the space station were provided by Boeing’s subsidiary Spectrolab.

Scientists at the US National Renewable Energy Laboratory have simulated a III-V solar cell by stacking gallium arsenide films onto interdigitated back contact silicon solar cells with a glass interlayer. The scientists have already done some initial mini-module integration work, but significant size scaling will ultimately be needed to reach commercialization. The cell currently has an active area of 1 cm2.

The 144-cell module is available in six versions with power ratings ranging from 545 W to 570 W and efficiency between 21.3% and 22.3%. The product measures 2,256×1,133x35mm and weighs in at 32.3kg.