Mitsubishi Electric Corp breaks previous efficiency records with its polysilicon solar cell

Mitsubishi Electric Corp is taking its solar cell technology seriously with its newly acquired cell conversion efficiency of 19.3%. This was with a polysilicon solar cell that measured 15 x 15 cm. This figure is more than the 19.1% conversion efficiency achieved last September by the company. The company has been breaking its efficiency record with its polysilicon cells since the last three years. Mitsubishi added a cleaning process before the electrodes are formed on the front and back of a silicon wafer due to which the connection resistance between the silicon wafer and the electrodes was reduced by 4%. This polysilicon solar cell has a thickness of 200μm due to which the 19.3% was achieved.

A similar technology has been applied to a 100μm-thick cell that will help reduce costs and achieve a conversion efficiency of 18.1%. Mitsubishi Electric Corp love breaking their own records, don’t they?

[Techon]