1
|
Meng Z, Li G, Yiu S, Zhu N, Yu Z, Leung C, Manners I, Wong W. Nanoimprint Lithography‐Directed Self‐Assembly of Bimetallic Iron–M (M=Palladium, Platinum) Complexes for Magnetic Patterning. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202002685] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Zhengong Meng
- Department of Chemistry Hong Kong Baptist University Waterloo Road Kowloon Tong Hong Kong P. R. China
- College of Chemistry and Environmental Engineering Low-dimensional Materials Genome Initiative Shenzhen University Xueyuan Road Shenzhen Guangdong P. R. China
| | - Guijun Li
- State Key Laboratory of Ultra-Precision Machining Technology and Department of Industrial and Systems Engineering The Hong Kong Polytechnic University Hung Hom Hong Kong P. R. China
| | - Sze‐Chun Yiu
- Department of Chemistry Hong Kong Baptist University Waterloo Road Kowloon Tong Hong Kong P. R. China
- Department of Applied Biology and Chemical Technology The Hong Kong Polytechnic University (PolyU) Hung Hom Hong Kong P. R. China
- PolyU Shenzhen Research Institute Shenzhen 518057 P. R. China
| | - Nianyong Zhu
- Department of Chemistry Hong Kong Baptist University Waterloo Road Kowloon Tong Hong Kong P. R. China
| | - Zhen‐Qiang Yu
- College of Chemistry and Environmental Engineering Low-dimensional Materials Genome Initiative Shenzhen University Xueyuan Road Shenzhen Guangdong P. R. China
| | - Chi‐Wah Leung
- Department of Applied Physics The Hong Kong Polytechnic University Hung Hom Hong Kong P. R. China
| | - Ian Manners
- Department of Chemistry University of Victoria Victoria BC V8P 5C2 Canada
| | - Wai‐Yeung Wong
- Department of Chemistry Hong Kong Baptist University Waterloo Road Kowloon Tong Hong Kong P. R. China
- Department of Applied Biology and Chemical Technology The Hong Kong Polytechnic University (PolyU) Hung Hom Hong Kong P. R. China
- PolyU Shenzhen Research Institute Shenzhen 518057 P. R. China
| |
Collapse
|
2
|
Meng Z, Li G, Yiu SC, Zhu N, Yu ZQ, Leung CW, Manners I, Wong WY. Nanoimprint Lithography-Directed Self-Assembly of Bimetallic Iron-M (M=Palladium, Platinum) Complexes for Magnetic Patterning. Angew Chem Int Ed Engl 2020; 59:11521-11526. [PMID: 32243037 DOI: 10.1002/anie.202002685] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2020] [Indexed: 01/10/2023]
Abstract
Self-assembly of d8 metal polypyridine systems is a well-established approach for the creation of 1D organometallic assemblies but there are still challenges for the large-scale construction of nanostructured patterns from these building blocks. We describe herein the use of high-throughput nanoimprint lithography (NIL) to direct the self-assembly of the bimetallic complexes [4'-ferrocenyl-(2,2':6',2''-terpyridine)M(OAc)]+ (OAc)- (M=Pd or Pt; OAc=acetate). Uniform nanorods are fabricated from the molecular self-organization and evidenced by morphological characterization. More importantly, when top-down NIL is coupled with the bottom-up self-assembly of the organometallic building blocks, regular arrays of nanorods can be accessed and the patterns can be controlled by changing the lithographic stamp, where the mold imposes a confinement effect on the nanorod growth. In addition, patterns consisting of the products formed after pyrolysis are studied. The resulting arrays of ferromagnetic FeM alloy nanorods suggest promising potential for the scalable production of ordered magnetic arrays and fabrication of magnetic bit-patterned media.
Collapse
Affiliation(s)
- Zhengong Meng
- Department of Chemistry, Hong Kong Baptist University, Waterloo Road, Kowloon Tong, Hong Kong, P. R. China.,College of Chemistry and Environmental Engineering, Low-dimensional Materials Genome Initiative, Shenzhen University, Xueyuan Road, Shenzhen, Guangdong, P. R. China
| | - Guijun Li
- State Key Laboratory of Ultra-Precision Machining Technology and Department of Industrial and Systems Engineering, The Hong Kong Polytechnic University, Hung Hom, Hong Kong, P. R. China
| | - Sze-Chun Yiu
- Department of Chemistry, Hong Kong Baptist University, Waterloo Road, Kowloon Tong, Hong Kong, P. R. China.,Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University (PolyU), Hung Hom, Hong Kong, P. R. China.,PolyU Shenzhen Research Institute, Shenzhen, 518057, P. R. China
| | - Nianyong Zhu
- Department of Chemistry, Hong Kong Baptist University, Waterloo Road, Kowloon Tong, Hong Kong, P. R. China
| | - Zhen-Qiang Yu
- College of Chemistry and Environmental Engineering, Low-dimensional Materials Genome Initiative, Shenzhen University, Xueyuan Road, Shenzhen, Guangdong, P. R. China
| | - Chi-Wah Leung
- Department of Applied Physics, The Hong Kong Polytechnic University, Hung Hom, Hong Kong, P. R. China
| | - Ian Manners
- Department of Chemistry, University of Victoria, Victoria, BC, V8P 5C2, Canada
| | - Wai-Yeung Wong
- Department of Chemistry, Hong Kong Baptist University, Waterloo Road, Kowloon Tong, Hong Kong, P. R. China.,Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University (PolyU), Hung Hom, Hong Kong, P. R. China.,PolyU Shenzhen Research Institute, Shenzhen, 518057, P. R. China
| |
Collapse
|
3
|
Leffler VB, Mayr L, Paciok P, Du H, Dunin-Borkowski RE, Dulle M, Förster S. Controlled Assembly of Block Copolymer Coated Nanoparticles in 2D Arrays. Angew Chem Int Ed Engl 2019; 58:8541-8545. [PMID: 31081290 DOI: 10.1002/anie.201901913] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2019] [Indexed: 11/12/2022]
Abstract
The defined assembly of nanoparticles (NPs) in polymer matrices is an important prerequisite for next-generation functional materials. A promising approach to control NP positions in polymer matrices at the nanometer scale is the use of block copolymers. It allows the selective deposition of NPs in nanodomains, but the final defined and ordered positioning of the NPs within the domains has not been possible. This can now be achieved by coating NPs with block copolymers. The self-assembly of block copolymer-coated NPs directly leads to ordered microdomains containing ordered NP arrays with exactly one NP per unit cell. By variation of the grafting density, the inter-nanoparticle distance can be controlled from direct NP surface contact to surface separations of several nanometers, determined by the thickness of the polymer shell. The method can be applied to a wide variety of block copolymers and NPs and is thus suitable for a broad range of applications.
Collapse
Affiliation(s)
- Vanessa B Leffler
- JCNS-1/ ICS-1, Forschungszentrum Jülich GmbH, 52425, Jülich, Germany.,Institute of Physical Chemistry, RWTH Aachen University, 52074, Aachen, Germany
| | - Lina Mayr
- Physikalische Chemie I, Universität Bayreuth, Universitätsstr. 30, 95440, Bayreuth, Germany
| | - Paul Paciok
- ER-C-1/ PGI-5, Forschungszentrum Jülich GmbH, 52425, Jülich, Germany
| | - Hongchu Du
- ER-C-2, Forschungszentrum Jülich GmbH, 52425, Jülich, Germany.,GFE, RWTH Aachen University, 52074, Aachen, Germany
| | | | - Martin Dulle
- JCNS-1/ ICS-1, Forschungszentrum Jülich GmbH, 52425, Jülich, Germany
| | - Stephan Förster
- JCNS-1/ ICS-1, Forschungszentrum Jülich GmbH, 52425, Jülich, Germany.,Institute of Physical Chemistry, RWTH Aachen University, 52074, Aachen, Germany
| |
Collapse
|
4
|
Leffler VB, Mayr L, Paciok P, Du H, Dunin‐Borkowski RE, Dulle M, Förster S. Controlled Assembly of Block Copolymer Coated Nanoparticles in 2D Arrays. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201901913] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Vanessa B. Leffler
- JCNS-1/ ICS-1Forschungszentrum Jülich GmbH 52425 Jülich Germany
- Institute of Physical ChemistryRWTH Aachen University 52074 Aachen Germany
| | - Lina Mayr
- Physikalische Chemie IUniversität Bayreuth Universitätsstr. 30 95440 Bayreuth Germany
| | - Paul Paciok
- ER-C-1/ PGI-5Forschungszentrum Jülich GmbH 52425 Jülich Germany
| | - Hongchu Du
- ER-C-2Forschungszentrum Jülich GmbH 52425 Jülich Germany
- GFERWTH Aachen University 52074 Aachen Germany
| | | | - Martin Dulle
- JCNS-1/ ICS-1Forschungszentrum Jülich GmbH 52425 Jülich Germany
| | - Stephan Förster
- JCNS-1/ ICS-1Forschungszentrum Jülich GmbH 52425 Jülich Germany
- Institute of Physical ChemistryRWTH Aachen University 52074 Aachen Germany
| |
Collapse
|
5
|
Yiu SC, Nunns A, Ho CL, Ngai JHL, Meng Z, Li G, Gwyther J, Whittell GR, Manners I, Wong WY. Nanostructured Bimetallic Block Copolymers as Precursors to Magnetic FePt Nanoparticles. Macromolecules 2019. [DOI: 10.1021/acs.macromol.9b00088] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Sze-Chun Yiu
- School of Chemistry, University of Bristol, BS8 1TS Bristol, U.K
- Institute of Molecular Functional Materials and Department of Chemistry, Hong Kong Baptist University, Waterloo Road, Kowloon Tong, Hong Kong, P. R. China
- HKBU Institute of Research and Continuing Education, Shenzhen Virtual University Park, Shenzhen 518057, P. R. China
| | - Adam Nunns
- School of Chemistry, University of Bristol, BS8 1TS Bristol, U.K
| | - Cheuk-Lam Ho
- Institute of Molecular Functional Materials and Department of Chemistry, Hong Kong Baptist University, Waterloo Road, Kowloon Tong, Hong Kong, P. R. China
- HKBU Institute of Research and Continuing Education, Shenzhen Virtual University Park, Shenzhen 518057, P. R. China
| | - Jenner Ho-Loong Ngai
- Institute of Molecular Functional Materials and Department of Chemistry, Hong Kong Baptist University, Waterloo Road, Kowloon Tong, Hong Kong, P. R. China
- HKBU Institute of Research and Continuing Education, Shenzhen Virtual University Park, Shenzhen 518057, P. R. China
| | - Zhengong Meng
- Institute of Molecular Functional Materials and Department of Chemistry, Hong Kong Baptist University, Waterloo Road, Kowloon Tong, Hong Kong, P. R. China
- HKBU Institute of Research and Continuing Education, Shenzhen Virtual University Park, Shenzhen 518057, P. R. China
| | | | - Jessica Gwyther
- School of Chemistry, University of Bristol, BS8 1TS Bristol, U.K
| | | | - Ian Manners
- School of Chemistry, University of Bristol, BS8 1TS Bristol, U.K
- Department of Chemistry, University of Victoria, Victoria, British Columbia V8W 3V6, Canada
| | - Wai-Yeung Wong
- Institute of Molecular Functional Materials and Department of Chemistry, Hong Kong Baptist University, Waterloo Road, Kowloon Tong, Hong Kong, P. R. China
- HKBU Institute of Research and Continuing Education, Shenzhen Virtual University Park, Shenzhen 518057, P. R. China
| |
Collapse
|
6
|
Górka W, Kuciel T, Nalepa P, Lachowicz D, Zapotoczny S, Szuwarzyński M. Homogeneous Embedding of Magnetic Nanoparticles into Polymer Brushes during Simultaneous Surface-Initiated Polymerization. NANOMATERIALS (BASEL, SWITZERLAND) 2019; 9:E456. [PMID: 30893829 PMCID: PMC6474101 DOI: 10.3390/nano9030456] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/26/2019] [Revised: 03/14/2019] [Accepted: 03/15/2019] [Indexed: 11/17/2022]
Abstract
Here we present a facile and efficient method of controlled embedding of inorganic nanoparticles into an ultra-thin (<15 nm) and flat (~1.0 nm) polymeric coating that prevents unwanted aggregation. Hybrid polymer brushes-based films were obtained by simultaneous incorporation of superparamagnetic iron oxide nanoparticles (SPIONs) with diameters of 8⁻10 nm into a polycationic macromolecular matrix during the surface initiated atom transfer radical polymerization (SI-ATRP) reaction in an ultrasonic reactor. The proposed structures characterized with homogeneous distribution of separated nanoparticles that maintain nanometric thickness and strong magnetic properties are a good alternative for commonly used layers of crosslinked nanoparticles aggregates or bulk structures. Obtained coatings were characterized using atomic force microscopy (AFM) working in the magnetic mode, secondary ion mass spectrometry (SIMS), and X-ray photoelectron spectroscopy (XPS).
Collapse
Affiliation(s)
- Weronika Górka
- Faculty of Physics, Jagiellonian University, Astronomy and Applied Computer Science, S. Łojasiewicza 11, 30-348 Krakow, Poland.
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Krakow, Poland.
| | - Tomasz Kuciel
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Krakow, Poland.
| | - Paula Nalepa
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Krakow, Poland.
| | - Dorota Lachowicz
- Academic Centre for Materials and Nanotechnology, AGH University of Science and Technology, A. Mickiewicza 30, 30-059 Krakow, Poland.
| | - Szczepan Zapotoczny
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Krakow, Poland.
| | - Michał Szuwarzyński
- Academic Centre for Materials and Nanotechnology, AGH University of Science and Technology, A. Mickiewicza 30, 30-059 Krakow, Poland.
| |
Collapse
|
7
|
Hart JM, Kimani SM, Hutchings LR, Grillo I, Hughes AV, Clarke N, Garcia-Sakai V, Rogers SE, Mendis B, Thompson RL. Spontaneous Nanoparticle Dispersal in Polybutadiene by Brush-Forming End-Functional Polymers. Macromolecules 2016. [DOI: 10.1021/acs.macromol.5b02318] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
| | | | | | - Isabelle Grillo
- Institut Laue-Langevin, 71 avenue des Martyrs, 38000 Grenoble, France
| | - Arwel V. Hughes
- ISIS
Pulsed Neutron Source, Rutherford Appleton Laboratories, Chilton, Didcot OX11 0QX, U.K
| | - Nigel Clarke
- Department
of Physics and Astronomy, The University of Sheffield, Hicks Building, Hounsfield Road, Sheffield S3 7RH, U.K
| | - Victoria Garcia-Sakai
- ISIS
Pulsed Neutron Source, Rutherford Appleton Laboratories, Chilton, Didcot OX11 0QX, U.K
| | - Sarah E. Rogers
- ISIS
Pulsed Neutron Source, Rutherford Appleton Laboratories, Chilton, Didcot OX11 0QX, U.K
| | | | | |
Collapse
|