Nanometer-scale flow of molten polyethylene from a heated atomic force microscope tip

被引：40

作者：

Felts, Jonathan R. ^{[1
]}

Somnath, Suhas ^{[1
]}

Ewoldt, Randy H. ^{[1
]}

King, William P. ^{[1
]}

机构：

[1] Univ Illinois, Dept Mech Sci & Engn, Urbana, IL 61801 USA

来源：

NANOTECHNOLOGY | 2012年 / 23卷 / 21期

关键词：

DIP-PEN NANOLITHOGRAPHY; POLYMER; NANOSTRUCTURES; DEPOSITION; NANOWIRES;

D O I：

10.1088/0957-4484/23/21/215301

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

We investigate the nanometer-scale flow of molten polyethylene from a heated atomic force microscope (AFM) cantilever tip during thermal dip-pen nanolithography (tDPN). Polymer nanostructures were written for cantilever tip temperatures and substrate temperatures controlled over the range 100-260 degrees C and while the tip was either moving with speed 0.5-2.0 mu m s(-1) or stationary and heated for 0.1-100 s. We find that polymer flow depends on surface capillary forces and not on shear between tip and substrate. The polymer mass flow rate is sensitive to the temperature-dependent polymer viscosity. The polymer flow is governed by thermal Marangoni forces and non-equilibrium wetting dynamics caused by a solidification front within the feature.

引用

页数：8

共 28 条

[1] ATOMIC FORCE MICROSCOPE [J].

BINNIG, G ;

QUATE, CF ;

GERBER, C .

PHYSICAL REVIEW LETTERS, 1986, 56 (09) :930-933

[2] Temperature-dependence of ink transport during thermal dip-pen nanolithography [J].

Chung, Sungwook ;

Felts, Jonathan R. ;

Wang, Debin ;

King, William P. ;

De Yoreo, James J. .

APPLIED PHYSICS LETTERS, 2011, 99 (19)

[3] Direct patterning of modified oligonucleotides on metals and insulators by dip-pen nanolithography [J].

Demers, LM ;

Ginger, DS ;

Park, SJ ;

Li, Z ;

Chung, SW ;

Mirkin, CA .

SCIENCE, 2002, 296 (5574) :1836-1838

[4] Wear-Resistant Diamond Nanoprobe Tips with Integrated Silicon Heater for Tip-Based Nanomanufacturing [J].

Fletcher, Patrick C. ;

Felts, Jonathan R. ;

Dai, Zhenting ;

Jacobs, Tevis D. ;

Zeng, Hongjun ;

Lee, Woo ;

Sheehan, Paul E. ;

Carlisle, John A. ;

Carpick, Robert W. ;

King, William P. .

ACS NANO, 2010, 4 (06) :3338-3344

[5] Multiple ink nanolithography: Toward a multiple-pen nano-plotter [J].

Hong, SH ;

Zhu, J ;

Mirkin, CA .

SCIENCE, 1999, 286 (5439) :523-525

[6] Self-assembly of ink molecules in dip-pen nanolithography: A diffusion model [J].

Jang, JY ;

Hong, SH ;

Schatz, GC ;

Ratner, MA .

JOURNAL OF CHEMICAL PHYSICS, 2001, 115 (06) :2721-2729

[7] DEPOSITION OF ORGANIC MATERIAL BY THE TIP OF A SCANNING FORCE MICROSCOPE [J].

JASCHKE, M ;

BUTT, HJ .

LANGMUIR, 1995, 11 (04) :1061-1064

[8] Reversible electron-induced conductance in polymer nanostructures [J].

Laracuente, A. R. ;

Yang, M. ;

Lee, W. K. ;

Senapati, L. ;

Baldwin, J. W. ;

Sheehan, P. E. ;

King, W. P. ;

Erwin, S. C. ;

Whitman, L. J. .

JOURNAL OF APPLIED PHYSICS, 2010, 107 (10)

[9] Protein nanoarrays generated by dip-pen nanolithography [J].

Lee, KB ;

Park, SJ ;

Mirkin, CA ;

Smith, JC ;

Mrksich, M .

SCIENCE, 2002, 295 (5560) :1702-1705

[10] Maskless Nanoscale Writing of Nanoparticle-Polymer Composites and Nanoparticle Assemblies using Thermal Nanoprobes [J].

Lee, Woo Kyung ;

Dai, Zhenting ;

King, William P. ;

Sheehan, Paul E. .

NANO LETTERS, 2010, 10 (01) :129-133

← 1 2 3 →