Using a Flexible Fountain Pen to Directly Write Organic Semiconductor Patterns with Crystallization Regulated by the Precursor Film

Liu, Bingyang1,2; Wang, Jialin1; Zhang, Guoxin1; Du, Gengxin1; Xia, Huihui1,2; Deng, Weiwei1; Zhao, Xinyan1,3

2024-07-01

10.1002/smtd.202400098

SMALL METHODS   影响因子和分区

2366-9608

["Organic semiconductor (OSC) films fabricated by meniscus-guided coating (MGC) methods are suitable for cost-effective and flexible electronics. However, achieving crystalline thin films by MGC methods is still challenging because the nucleation and crystal growth processes are influenced by the intertwined interactions among solvent evaporation, stochastic nucleation, and the fluid flow instabilities. Herein, a novel flexible fountain pen with active ink supply is designed and used to print OSCs. This direct-write method allows the flexible pen tip to contact the substrate, maintaining a robust meniscus by eliminating the gap found in conventional MGCs. An in situ optical microscopy observation system shows that the precursor film plays a critical role on the crystallization and the formation of coffee rings and dendrites. The computational fluid dynamics simulations demonstrate that the microstructure of the pen promotes extensional flows, facilitating mass transport and crystal alignment. Highly-aligned ribbon-shaped crystals of a small organic molecule (TIPS-pentacene), as well as a semiconducting polymer (N2200) with highly-ordered orientations, have been successfully printed by the flexible fountain pen. Organic field-effect transistors based on the flexible pen printed OSCs exhibit high performances and strong anisotropic mobility. In addition, the flexible fountain pen is expandable for printing multiple lines or large-area films.","A flexible fountain pen is designed to directly write organic semiconductors with highly ordered crystals. The flexible pen tip contacts the substrate tightly to maintain a robust meniscus. An in situ optical microscopy observation system shows that the precursor film plays a critical role in the crystallization. The pen head is expandable for printing multiple lines or large-area films. image"]

direct write meniscus-guided coating organic semiconductor precursor film

SCI ; EI

英语

第一 ; 通讯

National Natural Science Foundation of China[11932009] ; Guangdong Basic and Applied Basic Research Foundation["2024A1515011135","2020A1515110268"] ; Shenzhen Key Laboratory of Soft Mechanics & Smart Manufacturing[ZDSYS20210623092005017] ; Science, Technology and Innovation Committee of Shenzhen Municipality[2020-148]

Chemistry ; Science & Technology - Other Topics ; Materials Science

Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary

WOS:001275981100001

WILEY-V C H VERLAG GMBH

Web of Science

1.Southern Univ Sci & Technol SUSTech, Dept Mech & Aerosp Engn, Shenzhen Key Lab Soft Mech & Smart Mfg, Shenzhen 518055, Peoples R China
2.Shenzhen Jinxin Technol Co Ltd, Shenzhen 518108, Peoples R China
3.Southern Univ Sci & Technol SUSTech, Acad Adv Interdisciplinary Studies, Shenzhen 518055, Peoples R China

Liu, Bingyang,Wang, Jialin,Zhang, Guoxin,et al. Using a Flexible Fountain Pen to Directly Write Organic Semiconductor Patterns with Crystallization Regulated by the Precursor Film[J]. SMALL METHODS,2024.

Liu, Bingyang.,Wang, Jialin.,Zhang, Guoxin.,Du, Gengxin.,Xia, Huihui.,...&Zhao, Xinyan.(2024).Using a Flexible Fountain Pen to Directly Write Organic Semiconductor Patterns with Crystallization Regulated by the Precursor Film.SMALL METHODS.

Liu, Bingyang,et al."Using a Flexible Fountain Pen to Directly Write Organic Semiconductor Patterns with Crystallization Regulated by the Precursor Film".SMALL METHODS (2024).