Faculty - Zhou

Yunshen Zhou email: Dr.Yunshen Zhou Laser-Assisted Nano Engineering Lab NCMN Homepage

Dr. Yunshen Zhou, Research Assistant Professor
Electrical Engineering
University of Nebraska - Lincoln
209N WSEC
Lincoln, Nebraska 68588-0511
office: (402) 472-3441 fax (402) 472- 4732
email: yzhou5@unl.edu
Zhou's website
LANE Group Logo
Carbon Nanotubes - on UNL Office of Research Video

Current Research

Dr. Zhou’s current research is focused on the controlled growth, integration and application of carbon nanostructures, including carbon nanotubes (CNTs), carbon nanoonions (CNOs), carbon nanobuds (CNBs), and graphene. Since 2005, Dr. Zhou and his colleagues have achieved following accomplishments, 1) Self-aligned growth of CNTs using laser-assisted chemical vapor deposition (LCVD); 2) Optically controlled growth and integration of CNTs; 3) Growth of diameter variable CNTs; 4) Synthesis of carbon nanoknots; and 5) Growth of CNBs through laser-induced nanofusion.

Recent Key Publications

  1. Plasmonic-enhanced carbon nanotube infrared bolometers, Source: NANOTECHNOLOGY  Volume: 24   Issue: 3     Article Number: 035502   DOI: 10.1088/0957-4484/24/3/035502   Published: JAN 25 2013

  2. Strong photoluminescence from diameter-modulated single-walled carbon nanotubes, Source: APPLIED PHYSICS LETTERS  Volume: 101   Issue: 4     Article Number: 043123   DOI: 10.1063/1.4739522   Published: JUL 23 2012

  3. Surface-enhanced Raman spectroscopy using gold-coated horizontally aligned carbon nanotubes, Source: NANOTECHNOLOGY  Volume: 23   Issue: 20     Article Number: 205702   DOI: 10.1088/0957-4484/23/20/205702   Published: MAY 25 2012

  4. Synthesis of nitrogen-doped diamond films using vibrational excitation of ammonia molecules in laser-assisted combustion flames, Source: JOURNAL OF LASER APPLICATIONS  Volume: 24   Issue: 2     Article Number: 022001   DOI: 10.2351/1.3685299   Published: MAY 2012

  5. Morphological transition of ZnO nanostructures influenced by magnesium doping, Source: APPLIED SURFACE SCIENCE  Volume: 258   Issue: 7   Pages: 2297-2300   DOI: 10.1016/j.apsusc.2011.09.134   Published: JAN 15 2012

  6. Single-Step Formation of Graphene on Dielectric Surfaces, Source: ADVANCED MATERIALS  Volume: 25   Issue: 4   Pages: 630-634   DOI: 10.1002/adma.201202840   Published: JAN 25 2013

  7. Chemical activation of carbon nano-onions for high-rate supercapacitor electrodes, Source: CARBON  Volume: 51   Pages: 52-58   DOI: 10.1016/j.carbon.2012.08.009   Published: JAN 2013

  8. Laser-assisted nanofabrication of carbon nanostructures, Source: JOURNAL OF LASER APPLICATIONS  Volume: 24   Issue: 4     Article Number: 042007   DOI: 10.2351/1.4716046   Published: SEP 2012

  9. Production of few-layer graphene through liquid-phase pulsed laser exfoliation of highly ordered pyrolytic graphite, Source: APPLIED SURFACE SCIENCE  Volume: 258   Issue: 22   Pages: 9092-9095   DOI: 10.1016/j.apsusc.2012.06.006   Published: SEP 1 2012

W. Xiong, Y.S. Zhou, X.N. He, J.B. Park, Y. Gao, M. Mahjouri-Samani, L.S. Fan, L. Jiang, T. Baldacchini, and Y.F. Lu, “Simultaneous additive and subtractive three-dimensional micro/nano-fabrication using integrated two-photon polymerization and multi-photon ablation”, Light: Sci. & Appl. (Nature Group), published online (2012)

Y.S. Zhou, W. Xiong, J.B. Park, M. Qian, M. Mahjouri-Samani, Y. Gao, L. Jiang, and Y.F. Lu, “Laser-assisted nanofabrication of carbon nanostructures”, J. Laser Appl. 24, 042007(2012)

 M. Mahjouri-Samani, Y. S. Zhou, W. Xiong, Z. Q. Xie, L. Jiang, and Y. F. Lu, “Strong Photoluminescence from Diameter-Modulated Single-Walled Carbon Nanotubes”, Appl. Phys. Lett. 101, 043123(2012).

Y. Gao, Y.S. Zhou, M. Qian, X.N. He, J. Redepenning, P. Goodman, H.M. Li, L. Jiang, and Y.F. Lu, “Chemical activation of carbon nano-onions for high-rate supercapacitor electrodes”, Carbon, http://dx.doi.org/10.1016/j.carbon.2012.08.009 (2012)

T. Premkumar, Y. S. Zhou, G. Yang, K. Baskar, L. Jiang and Y.F. Lu, “Morphological transition of ZnO nanostructures influenced by magnesium doping”, Appl. Surf. Sci., 258, 2297-2300 (2012)

L.B. Guo, W. Hu, B.Y. Zhang, X.N. He, C.M. Li, Y.S. Zhou, Z.X. Cai, X.Y. Zeng, and Y.F. Lu, “Optimally enhanced optical emission in laser-induced breakdown spectroscopy by combining spatial confinement and dual-pulse irradiation”, Opt. Exp., 20(2), 1436-1443(2012)

L. S. Fan, Z. Q. Xie, J. B. Park, X. N. He, Y. S. Zhou, L. Jiang, Y. F. Lu, “Synthesis of nitrogen-doped diamond films using vibrational excitation of ammonia molecules in laser-assisted combustion flames”, J. Laser Appl., 24, 022001 (2012)

Xiong, W., Zhou, Y. S., Jiang, L. J., Sarkar, A., Mahjouri-Samani, M., Xie, Z. Q., Gao, Y., Ianno, N. J., Jiang, L. and Lu, Y. F. Single-Step Formation of Graphene on Dielectric Surfaces. Adv. Mater.(2012)

X N He, Y Gao, M Mahjouri-Samani, P N Black, J Allen, M Mitchell, W Xiong, Y S Zhou, L Jiang, and Y F Lu, “Surface-Enhanced Raman Spectroscopy Using Gold-Coated Horizontally Aligned Carbon Nanotubes”, Nanotechnol. 23, 205702(2012).

M. Qian , Y.S. Zhou, Y. Gao, J.B. Park, T. Feng, S.M. Huang, Z. Sun, L. Jiang, and Y.F. Lu, “Formation of freestanding two-dimensional carbon nanosheets from poly(phenylcarbyne) through pulsed laser ablation”, Carbon, 49, 5117-5123(2011)

T. Guillemet, Z.Q. Xie, Y.S. Zhou, J.B. Park, A. Veillere, W. Xiong, J.M. Heintz, J.F. Silvain, N. Chandra, and Y.F. Lu, “Stress and quality analyses of diamond films deposited through laser-assisted combustion synthesis”, Appl. Mater. Interfaces, 3, 4120-4125(2011).

J.B. Park, W. Xiong, Y. Gao, M. Qian, Z.Q. Xie, M. Mitchell, Y.S. Zhou, K.H. Han, L. Jiang, Y.F. Lu, “Fast growth of graphene patterns by laser direct writing”, Appl. Phys. Lett., 98, 123109(2011)

Y. Gao, Y.S. Zhou, J.B. Park, H. Wang, X.N. He, H.F. Luo, L. Jiang, and Y.F. Lu, “Improved Optical-Limiting Performance, Crystallinity, and Growth Rate of Carbon Nano-Onions Synthesized from Resonantly Excited Ethylene Molecules”, Nanotechnology, 22, 165604(2011)

L. B. Guo , C. M. Li, W. Hu, Y. S. Zhou, B. Y. Zhang, Z. X. Cai, X. Y. Zeng, Y. F. Lu, “Plasma confinement by hemispherical cavity in laser-induced breakdown spectroscopy”, Appl. Phys. Lett. 98, 131501(2011)

Y Gao, Y S Zhou, M Qian, Z Q Xie, W Xiong, H F Luo, L Jiang, and Y F Lu, “Fast Growth of Branched Nickel Monosilicide Nanowires by Laser-Assisted Chemical Vapor Deposition”, Nanotechnology, 22, 235602(2011)

M. Qian , Y.S. Zhou, Y. Gao, J.B. Park, T. Feng, S.M. Huang, Z. Sun, L. Jiang, and Y.F. Lu, “Formation of graphene sheets through laser exfoliation of highly ordered pyrolytic graphite”, Appl. Phys. Lett., 98, 173108 (2011)

J.B. Park, W. Xiong, Z.Q. Xie, Y. Gao, M. Qian, M. Mitchell, M. Mahjouri-Samani, Y.S. Zhou, L. Jiang, Y.F. Lu, “Transparent interconnections formed by rapid single-step fabrication of graphene patterns”, Appl. Phys. Lett., 99, 053103(2011).

1.     Y. Gao, Y. S. Zhou, J. B. Park, H. Wang, X. N. He, H. F. Luo, L. Jiang and Y. F. Lu, “Resonant excitation of precursor molecules in improving the particle crystallinity, growth rate and optical limiting performance of carbon nano-onions”, Nanotechnology, accepted.

2.     Y. Gao, Y. S. Zhou, M. Qian, Z. Q. Xie, W. Xiong, H. F. Luo, L. Jiang and Y. F. Lu, “Fast growth of branched nickel monosilicide nanowires by laser-assisted chemical vapor deposition”, Nanotechnology, accepted.

3.     Y. S. Zhou, W. Xiong, Y. Gao, M. Mahjouri-Samani, M. Mitchell and Y. F. Lu, “Optically-controlled parallel integration of single-walled carbon nanotubes into nano-architectures”, Nanotechnology, 21, 315601 (2010). (Featured in Nanotechnology Highlights 2010)

4.     J. B. Park, W. Xiong, Y. Gao, M. Qian, Z. Q. Xie, M. Mitchell, Y. S. Zhou, K. H. Han, L. Jiang and Y. F. Lu, “Fast growth of graphene patterns by laser direct writing”, Applied Physics Letters, accepted.

5.     Z. Q. Xie, Y. S. Zhou, X. N. He, H. Ling, Y. Gao and Y. F. Lu, “Fast growth of diamond crystals in open air by combustion synthesis with resonant laser energy coupling”, Crystal Growth Design, 10, 1762-1766 (2010).

6.     Z. Q. Xie, X. N. He, W. Hu, T. Guillemet, J. B. Park, Y. S. Zhou, J. Bai, Y. Gao, X. C. Zeng, L. Jiang and Y. F. Lu, “Excitations of precursor molecules by different laser powers in laser-assisted growth of diamond films”, Crystal Growth Design, 10, 4928-4933 (2010).

7.     M. Mahjouri-Samani, Y. S. Zhou, W. Xiong, Y. Gao, M. Mitchell, L. Jiang and Y. F. Lu, “Diameter modulation by fast temperature control in laser-assisted chemical vapor deposition of single-walled carbon nanotubes”, Nanotechnology, 21, 395601 (2010). (Featured as a cover-image article, and selected in Nanotechnology Highlights 2010)

8.     T. Premkumar, Y. S. Zhou, Y. F. Lu and K. Baskar, “Optical and field-emission properties of ZnO nanostructures deposited using high-pressure pulsed laser deposition”, ACS Applied Materials & Interfaces, 2, 2863-2869 (2010). 

9.     Y. Gao, Y. S. Zhou, W. Xiong, M. Mahjouri-Samani, M. Mitchell and Y. F. Lu, “Controlled growth of carbon nanotubes on electrodes under different bias polarity”, Applied Physics Letters, 95, 143117 (2009).

10. Y. S. Zhou, K. J. Yi, M. M. Samani, W. Xiong and Y. F. Lu, “Image contrast enhancement in field-emission scanning electron microscopy of single-walled carbon nanotubes”, Applied Surface Science, 255, 4341-4346 (2009).

11. M. Mahjouri-Samani, Y. S. Zhou, W. Xiong, Y. Gao, M. Mitchell and Y. F. Lu, “Laser induced selective removal of metallic carbon nanotubes”, Nanotechnology, 20, 495202 (2009).

12. W. Xiong, Y. S. Zhou, M. M. Samani, W. Q. Yang, K. J. Yi, X. N. He, S. H. Liou and Y. F. Lu, “Self-aligned growth of single-walled carbon nanotubes using optical near-field effects”, Nanotechnology, 20, 025601 (2009). (Featured as a cover-image article, and selected in Nanotechnology Highlights 2010)

13. K. J. Yi, X. N. He, Y. S. Zhou, W. Xiong and Y. F. Lu, “Tip-enhanced near-field Raman spectroscopy with a scanning tunneling microscope and side-illumination optics”, Review of Scientific Instruments, 79 (7), 073706 (2008).

14. B. Wang, Y. S. Zhou, X. L. Ding, K. D. Wang, X. P. Wang, J. L. Yang, and J. G. Hou, “Conduction mechanism of Aviram-Ratner rectifiers with single pyridine-sigma-C60 oligomers”, Journal of Physical Chemistry B, 110 (48), 24505-24512 (2006).

15. Y. S. Zhou, B. Wang, S. Q. Xiao, Y. L. Li, and J. G. Hou, “Self-ordered monolayers of fullerene derivatives assembled via bimolecular building block”, Applied Surface Science, 252 (6), 2119-2125 (2006).

16. Y. S. Zhou, K. D. Wang, F. Z. Zhao, B. Wang, J. G. Hou, S. Wang, and Y. L. Li, “Self-assembly of N-3-gamma-pyridyl Aza[60]fulleroid on Au(111)”, China Science Bulletin, 50 (5), 406-411 (2005).

17. Y. S. Zhou, B. Wang, M. Z. Zhu, and J.G. Hou, “Observation of co-existence of “face-on” and “edge-on” stacking styles in a porphyrin monolayer”, Chemical Physics Letters 403, 140-145 (2005).