Chem. J. Chinese Universities ›› 2023, Vol. 44 ›› Issue (7): 20230078.doi: 10.7503/cjcu20230078

• Article • Previous Articles     Next Articles

Infrared Nanosecond Laser Assisted Preparation of Large-area Organic Photovoltaic Module

WU Jiang1,2, LI Youzhan1,2, LIU He2,3, FU Yingying2, XIE Zhiyuan1,2()   

  1. 1.School of Applied Chemistry and Engineering,University of Science and Technology of China,Hefei 230026,China
    2.State Key Laboratory of Polymer Physics and Chemistry,Changchun Institute of Applied Chemistry,Chinese Academy of Sciences,Changchun 130022,China
    3.College of Engineering,Jilin Normal University,Siping 136000,China
  • Received:2023-02-22 Online:2023-07-10 Published:2023-04-18
  • Contact: XIE Zhiyuan E-mail:xiezy_n@ciac.ac.cn
  • Supported by:
    the Science and Technology Development Program of Jilin Province, China(20210201036GX);the National Key Research and Development Program of China(2019YFA0705900);the National Natural Science Foundation of China(52273200)

Abstract:

The development of new active layer materials and the precise regulation of active layer morphologies have greatly facilitated the advances of organic photovoltaic cells(OPVs) and have recently enabled the power conversion efficiency(PCE) of small-area OPVs to exceed 19% in the laboratory. However, the preparation of efficient and stable large-area OPV modules still faces challenges for its industrialization in the future and draws great attention in recent years. Herein, high-performance large-area OPV modules were fabricated by using an infrared nanosecond laser to achieve accurate ablation and patterning of the individual functional layers. Compared to the commonly used femtosecond lasers for the fabrication of OPV modules, infrared nanosecond laser-assisted preparation of OPV modules is promising to reduce the manufacturing cost. The laser processing for the ablation of the individual layers was investigated and the damage to indium tin oxide(ITO) transparent electrode was effectively reduced by precise adjustment of laser parameters. The ablation of intermediate organic layers with weak infrared absorption was realized with the help of thermal effect coming from the under ITO layer. The large-area OPV module with an effective area of 28 cm2 and a high geometric fill factor of more than 93% was fabricated and an overall PCE of 14.33% was achieved. The demonstrated preparation of large-area high-performance OPV module via ablation of infrared nanosecond laser holds potential to advance the development of large-area OPV devices and paves the way for its commercialization in the future.

Key words: Laser patterning, Organic photovoltaics, Solar module, Nanosecond laser pulse

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