Korea Food Research Institute, San 46-1, Backhyun-dong, Bundang-gu, Sungnam, Gyeonggi-do 463-746, Republic of Korea.
Langmuir. 2010 Oct 5;26(19):15680-5. doi: 10.1021/la1017938.
We present a patterning method for hierarchically aligned assembly of single-walled carbon nanotubes (SWNTs) using a combination of the Langmuir-Blodgett (LB) technique and soft lithography. The LB technique allows one to control the alignment and the surface density of SWNTs by adjusting surface pressure of the film at the air-water interface. The aligned SWNT Langmuir films are successfully transferred onto the polydimethylsiloxane (PDMS) or silicon substrate with unidirectional alignment, and SWNT patterns with various shapes are fabricated on silicon and flexible poly(ethylene terephthalate) (PET) substrates by contacting and peeling off the PDMS stamp from the substrates via microcontact printing or lift-up methods. The SWNT patterning technique using the combination of soft lithography and the LB method can be applied in various fields, such as flexible high-speed transistors, high-efficiency solar cells, and transparent electrodes.
我们提出了一种使用 Langmuir-Blodgett (LB) 技术和软光刻相结合的方法，对单壁碳纳米管 (SWNTs) 进行分层排列。LB 技术可以通过调整空气-水界面处的膜表面压力来控制 SWNTs 的排列和表面密度。排列好的 SWNT Langmuir 膜可以成功地转移到 PDMS 或硅基底上，具有单向排列，并且通过微接触印刷或提拉法，通过将 PDMS 印章从基底上接触和剥离，可以在硅和柔性聚对苯二甲酸乙二醇酯 (PET) 基底上制作各种形状的 SWNT 图案。这种使用软光刻和 LB 方法相结合的 SWNT 图案化技术可以应用于各种领域，如柔性高速晶体管、高效太阳能电池和透明电极。
