Modules & Upstream Manufacturing

Scientists in China have used a fluorine-containing Lewis acid treatment to develop a perovskite cell that is said to retain between 63% and 80% of its initial efficiency after 14 days under 75% and 85% relative humidity.

Hanwha Solutions has confirmed that it will shut down its polysilicon business over the course of the next year, only a week after saying that it was still evaluating its plans for the sector.

Wacker Chemie has taken the first steps of its restructuring program with the lay-offs set to particularly affect its German locations. Poor performance by the chemical company’s polysilicon business is the main cause of the crisis.

A U.S. research group has used a lead-absorbing material to coat the front and rear of a perovskite solar cell stack. The researchers claim the films captured 96% of lead leakage when the cells were damaged.

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.

The 5 GW of new production lines announced by JA Solar at the start of the year have now been doubled as the company also unveiled plans to rejig up to 3.6 GW of its existing facilities to accommodate bigger wafers.

Texan start-up Yotta Energy has a potential solution for residential solar-plus-storage. Will the micro-storage company become the next SolarEdge or Enphase or suffer the fate of JLM Energy? And whatever happened to SolPad?

The record feat compares to usual figures of 2-3% for such devices. The Taiwanese scientists who developed the cell said it was prepared with the Silar method and is based on a ternary metal sulfide-alloyed semiconductor. They claim performance could be further boosted.

State-owned engineer and manufacturer Bharat Heavy Electricals Limited has invited bids for the supply of cells with five busbars and a minimum efficiency of 18.8%. Bidding closes on Friday.

A Turkish research team has analyzed how big changes in temperature can affect absorbance, light transmittance and reflectivity in two types of solar glass. The scientists demonstrated lower efficiency in solar cells and the glass itself were attributable to a large number of micro-cracks and deformations on the glass surface.