Patterning catalyst via inkjet printing to grow single-walled carbon nanotubes

• Published in: Chinese chemical letters Vol. 30; no. 2; pp. 505 - 508
• Main Authors: Zhang, Zeyao, Li, Yitan, Zhu, Sheng, Liu, Xiyan, Zhao, Xiulan, Li, Meihui, Li, Haoyu, Yang, Feng, Li, Yan
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01-02-2019; Academy for Advanced Interdisciplinary Studies, Peking University, Beijing 100871, China; Beijing National Laboratory for Molecular Science, Key Laboratory for the Physics and Chemistry of Nanodevices, State Key Laboratory of Rare Earth Materials Chemistry and Applications, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China%Beijing National Laboratory for Molecular Science, Key Laboratory for the Physics and Chemistry of Nanodevices, State Key Laboratory of Rare Earth Materials Chemistry and Applications, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
• Subjects: Chemical vapor deposition; Contact angle; Inkjet printing; Patterning; Single-walled carbon nanotubes; Inkjet printing; Patterning; Contact angle; Single-walled carbon nanotubes; Chemical vapor deposition
• ISSN: 1001-8417; 1878-5964
• DOI: 10.1016/j.cclet.2018.06.008

We demonstrated a method to pattern catalyst via inkjet printing to grow SWNTs, using metal salt solutions as the inks and an ordinary office-use printer. We printed water solutions of cobalt acetate on hydrophilic Si substrates and grew high quality SWNT films.
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Controlled growth of patterned single-walled carbon nanotubes (SWNTs) is an important issue in many applications. Herein, we demonstrated a method to pattern catalyst via inkjet printing for the growth of SWNTs, using metal salt solutions as the inks and an ordinary office-use printer. We printed water solutions of cobalt acetate on hydrophilic Si substrates and grew high quality SWNT films. The composition of the precursor solutions and the hydrophilicity of the substrates were crucial factors to the patterning.