Project Info


Si clathrate materials for advanced semiconductors

Carolyn Koh & Reuben Collins | ckoh@mines.edu

The next generation materials, derived from earth abundant materials (such as silicon) could revolutionize the electronics industry for the next generations of devices including computer chips, lasers, detectors. Silicon clathrates are caged crystalline structures, comprised of a silicon host/caged framework that traps small guest ions (e.g. Na+). These novel silicon caged structures have promise to facilitate high efficiency and low cost disruptive electronic and photonic devices. The goal of this project is to perform characterization measurements of these silicon caged structures and related materials using micro-Raman spectroscopy and electron spin resonance spectroscopy to investigate the structural properties of these materials (for both the host and guest) . This is a collaborative project which will involve mentors from CBE and Physics.

More Information

Please see the following publications for further insight into the project:
*Krishna, L., & Koh, C. A. (2015). Inorganic and methane clathrates: Versatility of guest–host compounds for energy harvesting. MRS Energy & Sustainability, 2.

*Warrier, P., & Koh, C. A. (2016). Silicon clathrates for lithium ion batteries: A perspective. Applied Physics Reviews, 3(4), 040805.

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Student Preparation


Qualifications

Interest in learning new techniques and topics, i.e. during the project the student will be trained in the characterization methods.

Time Commitment

25 plus hours/month

Skills/Techniques Gained

Research methods in semiconductor/solid state characterization, including Raman spectroscopy, Electron Spin Resonance.

Mentoring Plan

Weekly meetings will be conducted with the student, as well as day-to-day mentoring by the graduate student and Postdoc.