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Nanostructures and Optical Materials

Crucial targets of nanoscience are new materials and devices. They can be based on known physical phenomena improving them, or they can apply completely new principles. New materials, physical phenomena, new principles - in this triangle we move with our research projects. Our fields of interest are photonic crystals, especially artificial opals, hierarchical materials, self-assembly and self-organization, directed self-assembly, alternative principles for solar cells, and Grätzel cells.

Frank Marlow

Priv. Doz. Dr. Frank Marlow

Since 1999
Group leader at the Max-Planck-Institut für Kohlenforschung in Mülheim/Ruhr (Germany)
1999
Habilitation at the Freie Universität Berlin
1998-1999
Visiting researcher at University of California, Santa Barbara
1991-1998
Researcher at the Zentrum für heterogene Katalyse and Institut für Angewandte Chemie in Berlin-Adlershof
1988-1991
Researcher at the Zentralinstitut für Physikalische Chemie in Berlin
1988
Ph.D.
1986
Diploma
1981-1986
Study of physics at the Humboldt University in Berlin
1960
Born in Fürstenwalde, Germany

Lecture summer semester, University Duisburg-Essen
Recent Problems in Nanostructure Physics: Molecular Materials

See German Webpage

_____________________________________________________

Lecture winter semester, University Duisburg-Essen
Recent Problems in Nanostructure Physics: Photonic Crystals

Do butterflies, opals, and metallic-colored cars have something in common? The answer is: yes, the colors are produced by nanostructures. This lecture on nanostructured systems explains the theory and synthesis concepts of photonic crystals which are ordered dielectric nanostructures with lattice constants comparable with the wavelength of light. The lecture is usually given in winter semesters.

Download flyer W

Since 2010
Member of CeNIDE (Duisburg)
Since 2009
Member of the NanoEnergieTechnikZentrum „NETZ“ (Duisburg)
Since 2003
Member of the International Max Planck Research School „SurMat“ (Düsseldorf)
2012

Dr. F. Marlow, Dr. D. Schunk: Monodisperse titania microshperes via controlled nanoparticle aggregation. Newsletter NanoEnergie 7, 2012, page 12

www.uni-due.de/imperia/md/content/nanoenergie_07_2012_web.pdf

T.-S. Deng and F. Marlow: Synthesis of Monodisperse Polystyrene@Vinyl-SiO2 Core@Shell Particles and Hollow SiO2 Spheres. Chem. Mater. 24 (2012) 536-546.

D. Schunk, S. Hardt, H. Wiggers, F. Marlow: Preparation of monodisperse titania microspheres via controllable nanoparticle aggregation. PCCP (2012). DOI: 10.1039/c2cp40658f.

2011

Muldarisnur and F. Marlow: Opal Films: Crystal Orientation and Defects. J. Phys. Chem. C 115 (2011) 414–418

F. Marlow, M. Muldarisnur, P. Sharifi, H. Zabel: Interpretation of Small Angle Diffraction Experiments on Opal-like Photonic Crystals. Phys. Rev. B
84 (2011) 073401. DOI: 10.1103/PhysRevB.84.073401

T. R. Khan, A. Erbe, M. Auinger, F. Marlow, M. Rohwerder:
Electrodeposition of Zinc Silica Composite Coatings: Challenges in Incorporation of Functionalized Silica Particles within the Zinc Metal Matrix, Sci. Technol. Adv. Mater. 12 (2011), no. 055005, 1-9,
http://edoc.mpg.de/572368

2009

C. R. Mendonca, D. S. Correa, F. Marlow, T. Voss, P. Tayalia, E. Mazur:
Three-dimensional fabrication of optically active microstructures containing an electroluminescent polymer.
Applied Physics Letters 95 (2009) 113309. DOI:10.1063/1.3232207

Frank Marlow, Muldarisnur, Parvin Sharifi, Rainer Brinkmann, and Cecilia Mendive:
Opals: Status and Prospects (Invited Review)
Angew. Chem. Int. Ed. 2009, 48, 6212 – 6233 » details, Angew. Chem. 2009, 121, 6328 – 6351

Ahmed S.G. Khalil, Frank Marlow:
Controlled Growth of SBA-3-like Hierarchical Assemblies on Different Homogeneous and Patterned Surfaces.
Mater. Res. Soc. Symp. Proc. Vol. 1114, 2009.

2008

I. Popa, F. Marlow:
Post-deposition opal evolution.
ChemPhysChem 9 (2008) 1541-1547.

D. Konjhodzic, S. Schröter, F. Marlow,
Ultra-low refractive index mesoporous substrates for waveguide structures. In: Nanophotonic Materials (Eds.: R.B. Wehrsporn, H. Kitzerow, K. Busch) Wiley-VCH 2008 (Reprint von Nr. 90).

M. Tiemann, F. Marlow, J. Hartikainen, Ö. Weiss, M. Lindén:
Ripening Effectsf in ZnS Nanoparticles.
J. Phys. Chem. C, Vol. 112, No. 5 (2008) 1463

2007

J. H. Wülbern, M. Eich, U. Hübner, R. Boucher, F. Marlow, W. Volksen:
Omni-directional photonic band gap in polymer photonic crystal slabs.
Appl. Phys. Lett.91, 22, 221104, (2007)

T. Voss, G. T. Svacha, E. Mazur, S. Müller, C. Ronning, D. Konjhodzic, F. Marlow:
High Order Waveguide Modes in ZnO Nanowires.
Nano Letters 7 No. 12 (2007) 3675 DOI: 10.1021/nl071958w

F. Schüth, F. Marlow.
Colloidal crystals find new order. (News and Views)
Nature Vol 449 (2007) 550, DOI:10.1038/449550a

F. Marlow, A. S. G. Khalil, M. Stempniewicz:
Circular mesostructures: Solids with novel symmetry properties.
Invited Feature. J. Mater. Chem. 17 (2007) 2168-2182 DOI:10.1039/B700532F.

M. Stempniewicz, M. Rohwerder, F. Marlow:
Release from SBA-3-like Fibers: Cross-wall Transport and External Diffusion Barrier. ChemPhysChem 8 (2007) 188.

D. Konjhodzic, S. Schröter, F. Marlow,
Ultra-low refractive index mesoporous substrates for waveguide structures.
phys. stat. sol. (a) 204 (2007) 3676-3688. DOI: 10.1002/pssa.200776405.

Magdalena Stempniewicz, Ahmed S. G. Khalil, Michael Rohwerder, and Frank Marlow:
Diffusion in Coiled Pores - Learning from Microrelease and Microsurgery.
J. Am. Chem. Soc.129 (2007) 10561. DOI: 10.1021/ja0728167.

M. Stempniewicz, M. Rohwerder, F. Marlow:
Release of Guest Molecules from Modified Mesoporous Silica.
Stud. Surf. Sci. Catal. 165 (2007) 825-828.

 

Tuesday, 14:00 - 15:00 Uhr , weekly , Seminar room Altbau

Schedule:
W:/Workgroup Marlow/Seminar AGMarlow/ 

Lecture summer semester, University Duisburg-Essen
Recent Problems in Nanostructure Physics: Molecular Materials

See German Webpage

_____________________________________________________

Lecture winter semester, University Duisburg-Essen
Recent Problems in Nanostructure Physics: Photonic Crystals

Do butterflies, opals, and metallic-colored cars have something in common? The answer is: yes, the colors are produced by nanostructures. This lecture on nanostructured systems explains the theory and synthesis concepts of photonic crystals which are ordered dielectric nanostructures with lattice constants comparable with the wavelength of light. The lecture is usually given in winter semesters.

Download flyer W

Research Topics

Opals and Photonic Crystals
Opals and Photonic Crystals

Opals and Photonic Crystals

Opals are not only beautiful gemstones, they also have fundamental significance as prototypes for photonic crystals. They may lead to new photonic and photocatalytic materials. The crucial problems of these materials are the spontaneous defects and the desired incorporation of specially designed defects. In the works below, we described basic ideas and our approaches to special topics.
 
Review: F. Marlow, Muldarisnur, P. Sharifi, R. Brinkmann, C. Mendive: Opals: Status and Prospects, Angew. Chem. Int. Ed. 2009, 48, 6212

Fabrication of PhCs: F. Marlow, W. Dong: Engineering Nanoarchitectures for Photonic Crystals. ChemPhysChem. 4 (2003) 549; H. Li, F. Marlow: Controlled Arrangement of Colloidal Crystal Strips. Chem. Mater. 2005, 17, 3809

Properties of Opals: Muldarisnur et al., J. Phys. Chem. C 115 (2011) 414 (We describe some unique properties of opals made by the capillary deposition method)
 
Fabriation of potential PhC building units: T.-S. Deng and F. Marlow: Synthesis of Monodisperse Polystyrene@Vinyl-SiO2 Core−Shell Particles and Hollow SiO2 Spheres. Chem. Mater. (2012) in press.
Solids with novel symmetry properties,
Solids with novel symmetry properties,

Solids with novel symmetry properties,

A prerequisite for an efficient „molding the flow of light“ by photonic crystals is the molding of materials in desired nanostructures. Very often, conventional materials and processing techniques cannot fulfill the theoretical requirements for the materials and structures. Sol-gel methods enable material processing in opal pores and the controlled introduction of pores into materials. The porosity can be used for lowering the refractive index, for soft processing of the materials and for stress relaxation. Examples for this approach are ultra-low refractive index films used as supports for 2D photonic crystals, inverse opals with a skeleton-like unit cell filling and ferroelectric films with high transparency. Especially we are able to fabricate mesoporous silica films with a refractive index of 1.14 for use in 2D photonic crystal waveguide systems. Important achievements are described in the following papers:

Magdalena Stempniewicz, Ahmed S. G. Khalil, Michael Rohwerder, and Frank Marlow: Diffusion in Coiled Pores - Learning from Microrelease and Microsurgery. J. Am. Chem. Soc.129 (2007) 10561. 
F. Marlow, A. S. G. Khalil, M. Stempniewicz: Circular mesostructures: Solids with novel symmetry properties. Invited Feature. J. Mater. Chem. 17 (2007) 2168-2182
A. S. G. Khalil, D. Konjhodzic, F. Marlow: Hierarchy Selection, Position Control, and Orientation by Patterned Surfaces. Adv. Mater. Vol 18, (2006) 1055.  
 

Low-n films and other optical materials
Low-n films and other optical materials

Low-n films and other optical materials

Mesoporous structures are more than just materials with pores (2 nm < dmeso < 50 nm) bigger than micropores (dmicro < 2 nm). They show new structures, shapes and symmetries that induce new properties and reveal unexpected applications. A central point of our research is one especially-perfect class of mesoporous structures (circulites), exhibiting circularly arranged pores which represent a novel symmetry behavior. These structures are strictly-defined hierarchies which can serve as a prototype for the description and formation of hierarchical structures. Here, coiling is regarded as a general approach to the assembly of hierarchies. The control and design of hierarchical structures are the ultimate aims and have been achieved for this hierarchy type. Surfaces can be used for the selection of the hierarchy type, position control and alignment of the resulting particles. A molecular structuring of the support leads to pixel-like, highly-defined growth of a hierarchical arrangement containing 4 hierarchy levels. The properties of the hierarchies can be very specific, as the diffusion behavior. Important achievements are described in the following papers:

M. Schmidt, G. Boettger, M. Eich, W. Morgenroth, U. Huebner, H. G. Meyer, D. Konjhodzic, H. Bretinger, F. Marlow: Ultra low refractive index substrates – a novel base for photonic crystal slab waveguides. Appl. Phys. Lett. 85 (2004) 16-18. Web-Reprint: Virtual Journal of Nanoscale Science & Technology, 10 (2004) Issue 2
D. Konjhodzic, H. Bretinger, U. Wilczok, A. Dreier, A. Ladenburger, M. Schmidt, M. Eich, F. Marlow: Low-n Mesoporous Silica Films: Structure and Properties. Applied Physics A 81 (2005) 425.
F. Marlow, M.D. McGehee, D. Zhao, B.F. Chmelka, G.D. Stucky: Doped mesoporous silica fibers: A new laser material. Adv. Mater. 11 (1999) 632.
J. Loerke, F. Marlow: Laser Emission from Dye-Doped Mesoporous Silica Fibers. Adv. Mater. 14 (2002) No. 23

 

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  •  Rainer Brinkmann

    Brinkmann, Rainer

    +49(0)208/306-2248

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  • Dr. Tian Song Deng

    Dr. Deng, Tian Song

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  • Mrs. Abigail Hullermann

    Mrs. Hullermann, Abigail

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  • Priv. Doz. Dr. Frank Marlow

    Priv. Doz. Dr. Marlow, Frank

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  •  Mulda Muldarisnur

    Muldarisnur, Mulda

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  •  Elena Samsonova

    Samsonova, Elena

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  • Mrs. Lisanne Messmer

    Mrs. Messmer, Lisanne

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  • Dr. Daniel Schunk

    Dr. Schunk, Daniel

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  •  Parvin Sharifi

    Sharifi, Parvin

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  • Dr. Simone Wall

    Dr. Wall, Simone

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