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Ultradense and Ultrastable molecular glasses by molecular beam deposition.

Organic molecular beam deposition (OMBD) is a promising tool for the preparation of glasses with extraordinary high packing density, low enthalpy and low fictive temperature. In the recent years, several organic glass formers have been investigated with respect to their ability to form ultra-stable glasses (US-glass) by physical vapour deposition, among them, H-bonding systems like polyols showed exceptional USG properties.

This project aims to further explore the idea of stable glass formation by PVD by advanced preparation protocols along with real-time, in-situ characterization by dielectric relaxation spectroscopy, ac-calorimetry, gravimetry (QCM) and ellipsometry.

Datum:1 jan 2018  →  Heden
Trefwoorden:lage enthalpie glazen, glasovergang
Disciplines:Fysica en nanofysica van gecondenseerde materie