Nanotechnology Now |
Home > News > Graphene holds promise for hot-electron bolometers
August 25th, 2012
Graphene holds promise for hot-electron bolometers
Abstract:
The superior capability of graphene to limit electronic energy from being dissipated within the lattice makes it a fast photon detector with unprecedented sensitivity.
A bolometer is an electronic device that converts light into heat, which can then be detected by a thermometer. The thermal resistance, Rh, provides the coefficient linking incident power P and change in temperature ΔT, such that ΔT = PRh. An important consideration in designing a bolometer is the time taken for it to recover, given by τ = RhC, where C is the heat capacity. This has influenced the design of bolometers, which often used thin metal films with low C as absorbers that were suspended in vacuum with a spiderweb of fine nylon or Kevlar fibers to minimize thermal leak to the environment.
Source:
spie.org
Bookmark:
| Related News Press |
News and information
Aspen Aerogels Announces $22.5 Million Private Placement May 18th, 2013
NanoInk, Inc. Assets To Be Sold May 18th, 2013
Beautiful "flowers" self-assemble in a beaker: Elaborate nanostructures blossom from a chemical reaction perfected at Harvard May 17th, 2013
Scientists capture first direct proof of Hofstadter butterfly effect May 17th, 2013
Add boron for better batteries: Rice University theorists say graphene-boron mix shows promise for lithium-ion batteries May 17th, 2013
Graphene
Add boron for better batteries: Rice University theorists say graphene-boron mix shows promise for lithium-ion batteries May 17th, 2013
Seville will host the 14th Trends in Nanotechnology International Conference (TNT 2013): Call for abstracts announced May 14th, 2013
Agilent Technologies New AFM/Raman Spectroscopy System Provides Nanoscale Material Identification and Analysis May 13th, 2013
Govt.-Legislation/Regulation/Funding/Policy
Beautiful "flowers" self-assemble in a beaker: Elaborate nanostructures blossom from a chemical reaction perfected at Harvard May 17th, 2013
Moth-Inspired Nanostructures Take the Color Out of Thin Films May 17th, 2013
NIA Public Briefing: Nanotechnology and the Council of Europe May 17th, 2013
Chip Technology
Nanometrics Announces Upcoming Investor Events May 14th, 2013
HELIOS Program Develops Complete Supply Chain for Integrating Photonics with CMOS Circuit via IC Fabrication Processes May 14th, 2013
Discoveries
Beautiful "flowers" self-assemble in a beaker: Elaborate nanostructures blossom from a chemical reaction perfected at Harvard May 17th, 2013
Moth-Inspired Nanostructures Take the Color Out of Thin Films May 17th, 2013
Scientists capture first direct proof of Hofstadter butterfly effect May 17th, 2013
Announcements
Aspen Aerogels Announces $22.5 Million Private Placement May 18th, 2013
NanoInk, Inc. Assets To Be Sold May 18th, 2013
NIA Public Briefing: Nanotechnology and the Council of Europe May 17th, 2013
Scientists capture first direct proof of Hofstadter butterfly effect May 17th, 2013
Tools
NanoInk, Inc. Assets To Be Sold May 18th, 2013
Beautiful "flowers" self-assemble in a beaker: Elaborate nanostructures blossom from a chemical reaction perfected at Harvard May 17th, 2013
Scientists capture first direct proof of Hofstadter butterfly effect May 17th, 2013
Grants/Awards/Scholarships/Gifts/Contests/Honors/Records
Beautiful "flowers" self-assemble in a beaker: Elaborate nanostructures blossom from a chemical reaction perfected at Harvard May 17th, 2013
Add boron for better batteries: Rice University theorists say graphene-boron mix shows promise for lithium-ion batteries May 17th, 2013
Nanotechnology Pioneer Named 'Entrepreneur of the Year': Royal Society of Chemistry honors Chad Mirkin for commercializing innovations May 10th, 2013
 |
||
 |
||
| The latest news from around the world, FREE | ||
 |
||
|
|
||
| Premium Products | ||
 |
||
|
Only the news you want to read!
Learn More |
||
 |
||
|
University Technology Transfer & Patents
Learn More |
||
 |
||
|
Full-service, expert consulting
Learn More |
||
|
|
||
abbigliamento uomo
Computer Accessories
| © Copyright 1999-2013 7th Wave, Inc. All Rights Reserved | PRIVACY POLICY :: CONTACT US :: STATS :: SITE MAP :: ADVERTISE |