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Title: Phononic crystal devices

Patent ·
OSTI ID:1035041

Phononic crystals that have the ability to modify and control the thermal black body phonon distribution and the phonon component of heat transport in a solid. In particular, the thermal conductivity and heat capacity can be modified by altering the phonon density of states in a phononic crystal. The present invention is directed to phononic crystal devices and materials such as radio frequency (RF) tags powered from ambient heat, dielectrics with extremely low thermal conductivity, thermoelectric materials with a higher ratio of electrical-to-thermal conductivity, materials with phononically engineered heat capacity, phononic crystal waveguides that enable accelerated cooling, and a variety of low temperature application devices.

Research Organization:
Sandia National Laboratories (SNL), Albuquerque, NM, and Livermore, CA (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC04-94AL85000
Assignee:
Sandia Corporation (Albuquerque, NM)
Patent Number(s):
8,094,023
Application Number:
12/394,831
OSTI ID:
1035041
Country of Publication:
United States
Language:
English

References (6)

A bulk micromachined silicon thermopile with high sensitivity journal March 2003
Ion-beam sculpting at nanometre length scales journal July 2001
Phononic band-gap crystals for radio frequency communications journal June 2008
Feedback-controlled ion beam sculpting apparatus journal April 2004
Microfabricated VHF acoustic crystals and waveguides journal July 2008
Microfabricated phononic crystal devices and applications journal November 2008

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