High-Pressure Study of Molecular Solids and 1D Nanostructures by Vibrational Spectroscopy and Synchrotron X-ray Diffraction

TL;DRAbstract

Pressure plays a critical role in regulating the structures and properties of materials. Since Percy Bridgeman was recognized by the 1946 Nobel Prize for his contribution to high-pressure physics, high-pressure research as an interdisciplinary area has attracted extensive attentions. Nowadays, the high-pressure research involves broad frontier areas, such as chemistry, physics, biology, material and earth science. For instance, brand new classes of inorganic materials of unusual stoichiometries and crystal structures, with wide range of optical, mechanical, electronic and magnetic properties, have been produced at high pressure. Pressure-induced structural transformations between crystalline and amorphous materials, as well as among insulators, conductors and even superconductors, have been extensive documented. This Ph.D. work focused on investigating pressure-induced structural transformations in materials and understanding the involved chemistry, which was assembled into two parts.\

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