Date: Sept. 20, 2022

Source: China Science Daily 

Author: Zhu Hanbin 

Translator:ZUO Huui

The title highlighted in China Science Daily

A team led by Prof. Mai Yaohua of JNU’s Institute of New Energy Technology has adopted a low-cost nanosecond laser to fabricate perovskite solar modules with large-area efficiency over 21% and published its research in Advanced Energy Materials.

The research demonstrates that the nanosecond laser can deliver a reduced heat-affected zone because of the small thermal diffusion coefficient of perovskite material, contributing to the achievement of a high geometric filling factor of up to 95.5%. The aperture area efficiency of perovskite solar modules through parameter optimization could reach 21.07%, with a high photovoltaic fill factor exceeding 80%. The National Photovoltaic Industry Measurement and Testing Center has certified these results.

(Screenshot of the paper)

 The research results, which provide guidance in reducing the large-area efficiency loss of perovskite solar modules, are significant in promoting their industrialization while lowering equipment investment and production costs. (2022-09-19)

Link to paper：https://doi.org/10.1002/aenm.202202287