Berlin 2018 – wissenschaftliches Programm

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HL: Fachverband Halbleiterphysik

HL 50: HL Poster IV

HL 50.45: Poster

Donnerstag, 15. März 2018, 19:00–21:00, Poster B

New approaches for hybrid passivation layers — •Till Welzel¹, Markus Wiesinger¹, Rui N. Pereira^1,2, and Martin Stutzmann¹ — ¹Walter Schottky Institut and Physik-Department, Technische Universität München, Garching bei München, Germany — ²Department of Physics and Institute for Nanostructures, Nanomodelling and Nanofabrication, University of Aveiro, Aveiro, Portugal

The application of new hybrid materials for devices such as neuromorphic field effect transistors or high power devices is motivated by novel properties of hybrid dielectric passivation layers such as tunable dielectric constants or the ability to screen high electric fields effectively. In this study, we explore different scalable approaches to produce hybrid (semiconducting-insulating) passivation layers composed of semiconducting nanocrystals embedded in insulating organic or inorganic matrices. We investigate the morphology and optical properties of these layers by means of AFM and ellipsometry. The dielectric and electric behavior of the most promising layer structures have been investigated using impedance spectroscopy and CV-measurements. The observed properties are discussed in terms of the corresponding layer morphology and structure.