Raman scattering

Raman spectroscopy

Phase (matter)

Chemical physics

Nanoparticle

Materials science

Phase transition

High pressure

Thermodynamics

Physics

Nanotechnology

Organic chemistry

Coalescence (physics)

Optics

Synchrotron

Condensed matter physics

Astrobiology

Chemistry

Meteorology

Mesoscale meteorology

Synchrotron radiation

Engineering physics

Chemical Reviews

Nanoparticle (NP) high pressure behavior has been extensively studied over the years. In this review, we summarize recent progress on the studies of pressure induced NP phase behavior, property, and applications. This review starts with a brief overview of high pressure characterization techniques, coupled with synchrotron X-ray scattering, Raman, fluorescence, and absorption. Then, we survey the pressure induced phase transition of NP atomic crystal structure including size dependent phase transition, amorphization, and threshold pressures using several typical NP material systems as examples. Next, we discuss the pressure induced phase transition of NP mesoscale structures including topics on pressure induced interparticle separation distance, NP coupling, and NP coalescence. Pressure induced new properties and applications in different NP systems are highlighted. Finally, outlooks with future directions are discussed.

Pressure Induced Nanoparticle Phase Behavior, Property, and Applications