n-type

Chinese manufacturer Jolywood claims it has reached 23.5% cell efficiency on the production lines for its n-type TOPCon technology. The achievement, which has not been verified by a third party, represents a 0.3% improvement to Jolywood’s reported mass production efficiency.

Three more PV manufacturers are jostling to announce plans to invest in an expansion of production capacities as the industry appears to make light of coronavirus fears.

A Dutch research team has used highly transparent, hydrogenated nanocrystalline silicon oxide layers to improve the optoelectrical performance of contact stacks in a silicon heterojunction device. The material is said to offer superior electrical as well as favorable optical properties.

As it moves towards grid connection this month, the solar project in the south of Oman demonstrates the value proposition of n-type PV cell technology, Chinese solar manufacturer Jolywood has argued at the World Future Energy Summit. The project is said to be the largest n-type bifacial array in the world.

The 23.22% front-side efficiency of the 244.62 sq cm device – certified by Germany’s ISFH CalTeC – is another landmark for the Chinese manufacturer’s State Key Laboratory of Photovoltaic Science and Technology.

Researchers have made a finding they say could vastly simplify and reduce the production cost of perovskite solar cells. Working with mixed halide perovskites, the group found a disordered chemical composition can improve device efficiency.

Following up on the webinar held with Trina Solar about the new algorithms needed for bifacial and tracking installations, the word is that gains of 20-30% are not unlikely. To attain that, however, the sweet spot of front and rear side yield has to be reached. Trina has showcased a new algorithm alongside its bifacial n-type modules and claims it can do just that.

The Chinese PV manufacturer uses TOPCon half cells for the modules. The additional rear side yield is estimated by Trina at 5-30%.

It is not just the big beasts of Chinese solar that are investing in aggressive expansion as high-efficiency wafer maker NorSun and tracker supplier GameChange Solar make big announcements. The New York company, however, may fall foul of President Trump’s America First trade mantra by opening production lines in the Far East.

In a conversation with pv magazine, REC vice-president for sales in the EMEA region Ivano Zanni describes the new strategy of the Norwegian manufacturer following the launch of its high-efficiency, half-cut mono n-type heterojunction module. REC expects annual production capacity for the panels at its factory in Singapore to increase to 600 MW by the end of next year, and that the company’s total capacity will reach 2 GW.