Thermoelectrics Using Massively Scalable Si Nanowires
Abstract
In this grant we concentrated on processing that makes Group IV nanomembranes viable candidates for future thermoelectric materials. In that sense, the work has been very fundamental and foundation building. The work involved using strain engineering to create new properties, especially local nano-range strain in ribbons; the integration of membranes of different orientation and composition to make a single hybrid membrane; the fabrication of massively parallel nanowires; calculations of minibands corresponding to periodic local stress distributions that create a strain heterojunction and thus a single-element electronic superlattice; and measurements of band splitting and motion with strain and initial phonon and thermoelectric measurements. We also participated in characterizing 3D nanostructures made from membranes and are going forward exploring these properties. We published 19 papers and filed two patent applications.
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 18, 2010
- Accession Number
- ADA561816
Entities
People
- M. G. Lagally
Organizations
- University of Wisconsin–Madison