BEIJING, China – Chinese scientists have developed a method to manufacture more advanced solar cells on a large scale and for a better price, according to the researchers who are looking to a future with more accessible and affordable solar energy.

With global carbon emissions increasing year by year, the development of clean energy such as solar cells is attracting a lot of attention.

The high-performing perovskite solar cell (PSC) is an emerging photovoltaic technology but it has long been dogged by complex preparation, its high cost and instability.

However, scientists at the Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology (HUST) in China, and from the Swiss Laboratory of Photonics and Interfaces at the École Polytechnique Fédérale de Lausanne have proved greater PSC stability when the technology is scaled up.

Their paper detailing the research was published in the peer-reviewed journal Science on January 19.

“Although the power conversion efficiency of some PSCs can now exceed 25 per cent, such high efficiencies have been obtained only with small-area PSCs,” said Professor Li Yong of HUST, a leading author of the paper.

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