香港科技大学郑子健副教授4月25日下午学术报告

发布时间:2014-04-21访问量:199设置

报告人:郑子健 副教授

                          1Nanotechnology Center, Institute of Textiles and Clothing, The Hong Kong Polytechnic

                                                                 University, Hong Kong, China

                          1The Hong Kong Polytechnic University Shenzhen Research Institute, Shenzhen, China 

 

题目:Polymer-assisted metal deposition (PAMD): a full-solution strategy for flexible, stretchable, compressible, and wearable metal conductors

时间:2014425(星期五)下午200

地点:909号楼一楼B会议室(Conference Room B, 909-1F)

 

摘要

One solution-processible strategy, namely polymer-assisted metal deposition (PAMD), has been developed in our group, which allows ambient fabrication of flexible, foldable, stretchable, compressible, and wearable metal (especially Cu) conductors with very high conductivity. As shown in Figure 1, the key innovation of PAMD is the use of a thin and functional polymer interfacial layer that assists electroless deposition (ELD) of metal thin films and patterns (Au, Ag, Cu, and Ni) on soft substrates such as plastics, elastomers, papers, and polyurethane sponges. Such a polymer interfacial layer offers remarkable adhesion between metal and substrate, which is critical for enhancing the mechanical durability of the metal layer upon large deformation. In general, PAMD includes three steps. First, fundtional interfacial polymer such as (i.e., poly[2-(methacryloyloxy)ethyl] trimethylammonium chloride (PMETAC)) are anchored on various substrates at ambient conditions. And then, the catalyst precusors are immobilized into the polymer layer by ion exchange. Finally, the ELD process is proformed and corresponding thin metal films are obtained. Importantly, PAMD is compatible with versatile substrates. Moreover, the patterned metal films can be readily fabricated by patterning the PMETAC nanoplatform or catalyst precusors. On the basis of these advantages, PAMD is employed to fabricate flexible, foldable, stretchable, and wearable metal conducting sheets (Figure 1a), patterned flexible and stretchable metal interconnects (Figure 1b), and stretchable and compressible 3D metal sponges (Figure 1c), respectively

Fig. 1.  Schematic illustration of polymer-assisted metal deposition (PAMD) and its various applications.

 

Acknowledgment

We acknowledge the Research Grant Council of Hong Kong (Project# PolyU 5041/11P, Poly 5030/12P, PolyU 5036/13P), The Hong Kong Polytechnic University (Project# 1-ZV5Z, A-PK21, A-SA74, G-UB56), and the National Science Foundation of China (Project# 51273167) for financial support of this work.

References

1. Y. Yu, C. Yan, Z. J. Zheng*, Adv. Mater., in press, DOI:10.1002/adma.201305558.

2. Y. Yu, J. Zeng, C. Chen, Y. Yang, Z. J. Zheng*, Adv. Mater., 26(5), 810-815 (2014).

3. C. Yan, Z. J. Zheng*, J. Fiber Bioeng. Informat., 6(2), 117-128 (2013).

4. R. Guo, Y. Yu, Z. Xie, X.,Y. Yang, Z. J. Zheng*, Adv. Mater., 25(24), 3343-3350 (2013).

5.X. Wang, H. Hu, Y. Shen, X. Zhou, Z. J. Zheng*, Adv. Mater., 23(27), 3090-3094 (2011).

6. X. Liu, H. Chang, Y. Li, W. T. S. Huck, Z. J. Zheng*, ACS Appl. Mater. Interfaces, 2(2), 529-535 (2010).

 

个人简介:

Dr. Zijian Zheng is currently Associate Professor at the Institute of Textile and Clothing (ITC) at The Hong Kong Polytechnic University. His research interests are surface science, self-assembly, nanolithography, polymer science, and bendable/stretchable/wearable/graphene materials and electronic devices. He received his B. Eng. with honor from the Department of Chemical Engineering at Tsinghua University in 2003. Between 2004 and 2007, Dr. Zheng moved to the Department of Chemistry and Nanoscience Center at University of Cambridge for his PhD study under the supervision of Prof. Wilhelm T. S. Huck, where he worked on nanotechnology and organic optoelectronics. In 2008, Dr. Zheng joined the group of Prof. Chad A. Mirkin as a postdoctoral research fellow in the Department of Chemistry and International Institute for Nanotechnology at Northwestern University, working on the development of Dip-Pen Nanolithography and Polymer Pen Lithography. He joined ITC as Assistant Professor in 2009 and was promoted to tenured Associate Professor via a fast track. Dr. Zheng has published more than 40 papers in high-impact international scientific journals including Science, Advanced Materials, Journal of the America Chemical Society, Angewandte Chemie, and Nano letters. He also files 11 international and China patents. He serves as Guest Editor for Advanced Materials.

 

Representative Papers

10. “Polymer-assisted metal deposition (PAMD): a full-solution strategy for flexible, stretchable, compressible, and wearable metal conductors”. Y. Yu, C. Yan, Z. J. Zheng*, Advanced Materials2014, in press, DOI: 10.1002/adma.201305558.

 

9. “Three-dimensional compressible and stretchable conductive composites”. Y. Yu, J. Zeng, C. Chen, Z. Xie, R. Guo, Z. Liu, X. Zhou, Y. Yang, Z. J. Zheng*, Advanced Materials2014, 26, 810-815.

 

8. “Matrix-Assisted Catalytic Printing for the Fabrication of Multi-Scale, Flexible, Foldable, and Stretchable Metal Conductors”. R. Guo, Y. Yu, Z. Xie, X. Liu, X. Zhou, Y. Gao, Z. Liu, F. Zhou, Y. Yang, Z. J. Zheng*, Advanced Materials2013,25, 3343-3350.

7. “Polymer Brush Electrets”. X. Ma, Z. Xie, Z. Liu, X. Liu, T. Cao, Z. J. Zheng*, Adv. Funct. Mater. 2013, 23, 3239-3246.

6. “High-Resolution, Large-Area, Serial Fabrication of 3D Polymer Brush Structures by Parallel Dip-Pen Nanodisplacement Lithography”. X. Zhou, Z. Liu, Z. Xie, X. Liu, Z. J. Zheng*, Small2012, 8, 3568-3572.

5. “Stretchable conductors of ultra-high tensile strain and stable metallic conductance enabled by pre-strained polyelectrolyte nanoplatforms”. X. Wang, H. Hu, Y. Shen, X. Zhou, Z. J. Zheng*, Advanced Materials2011, 23, 3090-3094.
Impact factor: 14.829; Journal rank: 6/232 Materials Science, Multidisciplinary.

4.“Fabrication of Arbitrary Three-Dimensional Polymer Structures by Rational Control of Spacing between Nanobrushes”. X. Zhou, X. Wang, Y. Shen, Z. Xie, Z. J. Zheng*, Angewandte Chemie-International Edition2011, 50, 6506-6510.

3. “Transparent, Flexible, Low-Temperature and Solution Processible Graphene Composite Electrode”. H. Chang, G. Wang, A. Yang, X. Tao, X. Liu, Y. Shen, Z. J. Zheng*, Advanced Functional Materials 2010, 20, 2893-2902.

2. “Thin Film Field-Effect Phototransistors from Bandgap-Tunable, Solution-Processed, Few-Layer Reduced Graphene Oxide Films”. H. Chang, Z. Sun, Q. Yuan, F. Ding, X. Tao, F. Yan, Z. J. Zheng*,Advanced Materials2010, 22, 4872-4876.

1. “Polymer Pen Lithography”. F. Huo, Z. J. Zheng, G. Zheng, L. R. Giam, H. Zhang, C. A. Mirkin*, Science2008, 321, 1658-1660.

 

 

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