Dr. Yu Lin [Stanford University, USA]

Title: The Revealing Role of Pressure in Materials and Energy Sciences

Time: 10:00 - 11:00 AM, Wednesday, November 11, 2015

Place: Conference Room 201, HPSTAR (Shanghai)

Host: Dr. Mao

Abstract:

Pressure dramatically alters a material’s physical and chemical properties over varying energy scales, adding a new dimension to energy-related, electronic, optical, mechanical, biological, and environmental applications. I will focus on two of my projects where pressure enables improved understanding of the origins of unusual phenomena and novel materials synthesis. (1) I will describe the first instance of pressure-induced room-temperature electrical conductivity arising in a two-dimensional Cu(II)-Cl organic-inorganic hybrid perovskite. (2) I will discuss the formation of a new carbon allotrope – amorphous diamond – through cold compression of glassy carbon. I will also discuss future opportunities for pushing the frontier of extreme conditions research by exploiting the concept of a “chemically pre-compressed state” and synthesizing novel structures through manipulating a material’s metastability.

Biography of the Speaker:

Dr. Yu Lin is an associate staff scientist of Stanford Institute for Materials and Energy Sciences, SLAC National Accelerator Laboratory, US. She is also a postdoctoral Scholar of Department of Chemistry, Stanford University, US.

Dr. Lin's research centers on understanding the behavior of energy-related materials under high pressure. These materials can vary from crystalline to amorphous solids at macro-meso-nano scales and with different dimensionalities. The blossom of high-pressure technology and next-generation synchrotron, neutron, and laser facilities offer numerous opportunities for probing materials that can find applications in hydrogen storage, molecular electronics, lithium-ion batteries, solar cells in situ under the extreme of pressure.