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Dutch Institute for Fundamental Energy Research

2 ARTICLES PUBLISHED IN JoVE

Engineering

Characterization of Nanocrystal Size Distribution using Raman Spectroscopy with a Multi-particle Phonon Confinement Model

İlker Doğan¹, Mauritius C. M. van de Sanden^1,2

¹Department of Applied Physics, Eindhoven University of Technology, ²Dutch Institute for Fundamental Energy Research

We demonstrate how to determine the size distribution of semiconductor nanocrystals in a quantitative manner using Raman spectroscopy employing an analytically defined multi-particle phonon confinement model. Results obtained are in excellent agreement with the other size analysis techniques like transmission electron microscopy and photoluminescence spectroscopy.

JoVE Core

Non-equilibrium Microwave Plasma for Efficient High Temperature Chemistry

Dirk van den Bekerom¹, Niek den Harder¹, Teofil Minea¹, Nicola Gatti^1,2, Jose Palomares Linares¹, Waldo Bongers¹, Richard van de Sanden^1,3, Gerard van Rooij^1,3

¹Dutch Institute for Fundamental Energy Research, ²University of Trento, ³Eindhoven University of Technology

This article describes a flowing microwave reactor that is used to drive efficient non-equilibrium chemistry for the application of conversion/activation of stable molecules such as CO₂, N₂ and CH₄. The goal of the procedure described here is to measure the in situ gas temperature and gas conversion.