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Klaus Müllen (born 2 January 1947) is a German chemist working in the fields of polymer chemistry, supramolecular chemistry and nanotechnology. He is known for the synthesis and exploration of the properties of graphene-like nanostructures and their potential applications in organic electronics.
His research interests are in the field of preparative macro- and supramolecular chemistry. Among other things, his group has succeeded in synthesizing and characterizing hitherto unattainable large polycyclic aromatics such as superphenalene, which has a molecular mass of 1182 g·mol−1 and consists of 34 condensed benzene rings.
He has developed small disc-like organic building blocks using alkyl-substituted hexabenzocoronene, and in particular HBC-C12 – which self-assembles into crystalline liquid-phase structures (columnar liquid crystals) as potential organic field-effect transistors. The considered two-dimensional benzene ring structures are examples of subunits of graphene lattices (graphene nanostructures). The graphene-like structures synthesized and investigated by Müllen include two-dimensional bands of less than 50 nanometers width with jagged edges. Of interest here are the electronic conduction properties and spintronics properties with a view to future replacement of silicon-semiconductor technology. In synthesis, he introduced a new method in graphene polymer chemistry: soft-landing mass spectrometry. Applications include synthetic light-emitting organic materials (such as OLEDs) and incorporation of molecular defects (defect engineering) organic analogues of semiconductor technology.
His research interests are in the field of preparative macro- and supramolecular chemistry. Among other things, his group has succeeded in synthesizing and characterizing hitherto unattainable large polycyclic aromatics such as superphenalene, which has a molecular mass of 1182 g·mol−1 and consists of 34 condensed benzene rings.
He has developed small disc-like organic building blocks using alkyl-substituted hexabenzocoronene, and in particular HBC-C12 – which self-assembles into crystalline liquid-phase structures (columnar liquid crystals) as potential organic field-effect transistors. The considered two-dimensional benzene ring structures are examples of subunits of graphene lattices (graphene nanostructures). The graphene-like structures synthesized and investigated by Müllen include two-dimensional bands of less than 50 nanometers width with jagged edges. Of interest here are the electronic conduction properties and spintronics properties with a view to future replacement of silicon-semiconductor technology. In synthesis, he introduced a new method in graphene polymer chemistry: soft-landing mass spectrometry. Applications include synthetic light-emitting organic materials (such as OLEDs) and incorporation of molecular defects (defect engineering) organic analogues of semiconductor technology.
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Nature Communicationsno. 1 (2024): 1-8
Hao Wu,Hiroki Hanayama,Max Coehlo,Yanwei Gu, Ze-Hua Wu,Satoshi Takebayashi,Gerhard Jakob,Serhii Vasylevskyi,Dieter Schollmeyer,Mathias Kläui,Grégory Pieters, Martin Baumgarten,
Journal of the American Chemical Societyno. 11 (2024): 7480-7486
Ze-Hua Wu, Xingfu Zhu, Qiqi Yang, Yulian Zagranyarski, Krishna Mishra,Hilmar Strickfaden, Ronald P. Wong,Thomas Basche, Kaloian Koynov, Mischa Bonn,Chen Li,Xiaomin Liu,
JOURNAL OF THE AMERICAN CHEMICAL SOCIETYno. 11 (2024): 7135-7139
MACROMOLECULAR CHEMISTRY AND PHYSICS (2023)
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CRYSTAL GROWTH & DESIGNno. 2 (2023): 1189-1194
Chemistry - A European Journalno. 22 (2023)
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