Ablation enhancement of polymer-fullerene blend films under temporally-shaped femtosecond laser processing

Jiaxing Wang, Jingya Sun*, Zhuangge Yang

*此作品的通讯作者

科研成果: 书/报告/会议事项章节会议稿件同行评审

摘要

As a very promising method for improving the performance of organic photovoltaic (OPV) devices, femtosecond laser processing is advantaged at high processing precision, small heat-affected zone and can achieve selective morphology control of the active layer. However, almost current studies focused on single pulse processing. In this work, the single and double pulse processing laws of poly(3-hexyl-thiophene) (P3HT): phenyl-C61-butyricacid methyl ester (PCBM) blend films were explored by using temporally-shaped femtosecond laser processing system. When single pulse processing is used, it indicated a structural transformation process from bump to ablation crater. The temporally-shaped double pulse femtosecond laser processing results showed the effect of ablation enhancement compared with the single pulse, and the ablation depth and the ablation area increased. (For bumps, it facilitated further fragmentation). When the double pulse delay is 0.5ps, the effect of ablation enhancement (bump fragmentation) was the strongest. This letter proposed an ablation enhancement approach based on temporally-shaped femtosecond laser processing, which can further control the morphology of the active layer for promoted performance of OPV devices.

源语言英语
主期刊名International Conference on Laser, Optics and Optoelectronic Technology, LOPET 2021
编辑Changsi Peng, Fengjie Cen
出版商SPIE
ISBN(电子版)9781510646162
DOI
出版状态已出版 - 2021
活动2021 International Conference on Laser, Optics and Optoelectronic Technology, LOPET 2021 - Xi'an, 中国
期限: 28 5月 202130 5月 2021

出版系列

姓名Proceedings of SPIE - The International Society for Optical Engineering
11885
ISSN(印刷版)0277-786X
ISSN(电子版)1996-756X

会议

会议2021 International Conference on Laser, Optics and Optoelectronic Technology, LOPET 2021
国家/地区中国
Xi'an
时期28/05/2130/05/21

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