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

Jiaxing Wang; Jingya Sun; Zhuangge Yang

doi:10.1117/12.2602413

24 June 2021 Ablation enhancement of polymer-fullerene blend films under temporally-shaped femtosecond laser processing

Jiaxing Wang, Jingya Sun, Zhuangge Yang

Proceedings Volume 11885, International Conference on Laser, Optics and Optoelectronic Technology (LOPET 2021); 118850F (2021) https://doi.org/10.1117/12.2602413
Event: 2021 International Conference on Laser, Optics and Optoelectronic Technology (LOPET 2021), 2021, Xi'an, China

Abstract

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.

Citation Download Citation

Jiaxing Wang, Jingya Sun, and Zhuangge Yang "Ablation enhancement of polymer-fullerene blend films under temporally-shaped femtosecond laser processing", Proc. SPIE 11885, International Conference on Laser, Optics and Optoelectronic Technology (LOPET 2021), 118850F (24 June 2021); https://doi.org/10.1117/12.2602413

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available