A New Thin Film Fabrication Technique by Interconnecting Nanoparticles via Tetrazole-Complexes

Alexander Eychmüller^a, Nikolai Gaponik^a, Vladimir Lesnyak^a, Christin Rengers^a, André Wolf^a, Sergei Voitekhovich^b

^aPhysical Chemistry, Technical University (TU) Dresden, DE, Bergstraße 66b Erich-Müller-Bau, Germany

^bBelarusian State University, Research Institute for Physical Chemistry Problems, Lenigradskaya Str. 14, Minsk, Belarus

Materials for Sustainable Development Conference (MATSUS)
Proceedings of September Meeting 2016 (NFM16)

Berlin, Germany, 2016 September 5th - 13th

Organizers: Marin Alexe, Enrique Cánovas, Celso de Mello Donega, Ivan Infante, Thomas Kirchartz, Maksym Kovalenko, Federico Rosei, Lukas Schmidt-Mende, Laurens Siebbeles, Peter Strasser, Teodor K Todorov, Roel van de Krol and Ulrike Woggon

Oral, André Wolf, presentation 128
Publication date: 14th June 2016

Many different approaches have been developed to challenge the assembly of nanoparticles into multifunctional macroscopic solids. These is often demanded to utilize nanoparticles wide range of size-tunable properties for modern applications in catalysis, optoelectronics, and photonics.(1) However, it is still challenging and led to several techniques such as embedding in matrices, formation of ordered mesocrystals and non-ordered gels as well as Layer-by-Layer deposition.(2,3) Latter was shown in the early 1990s and is one of the approaches showing a facile way to scale up.(4,5)

In this present work, the method is extended by transferring the concept of advanced gel formation into a layer by layer process.(6) The characterization of these two dimensional micro porous assemblies was focused on their optical properties, energy relations between their components, and morphology. The new process reduces the amount of polyelectrolytes to a minimum, leads to shorter distances between the layers, and opens a wide range of nanomaterials to work with. These architectures are promising for the construction of transparent fluorescent solar concentrators and for sensing devices.

(1) Gaponik, N. J. Mater. Chem. 2010, 20, 5174–5181.

(2) Lesnyak, V.; Gaponik, N.; Eychmüller, A. Chem. Soc. Rev. 2013, 42, 2905–29.

(3) Bahrig, L.; Hickey, S. G.; Eychmüller, A. CrystEngComm 2014, 16, 9408–9424.

(4) Kotov, N. A.; Meldrum, F. C.; Fendler, J. H.; Tombacz, E.; Dekany, I. Langmuir 1994, 10, 3797–3804.

(5) Dabbousi, B. O.; Murray, C. B.; Rubner, M. F.; Bawendi, M. G. Chem. Mater. 1994, 6, 216–219.

(6) Wolf, A.; Lesnyak, V.; Gaponik, N.; Eychmüller, A. J. Phys. Chem. Lett. 2012, 3, 2188–2193.

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