Nanotechnology Now

Our NanoNews Digest Sponsors
Heifer International

Wikipedia Affiliate Button

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:
Delicious Digg Newsvine Google Yahoo Reddit Magnoliacom Furl Facebook

Related News Press

News and information

Nanometrics to Announce Fourth Quarter and Full Year Financial Results on February 5, 2019 January 18th, 2019

ULVAC Inc., and Oxford Instruments Plasma Technology collaborate to bring Atomic Scale Processing solutions to the Japanese Power and RF markets January 18th, 2019

Kiel physicists discover new effect in the interaction of plasmas with solids January 18th, 2019

Brilliant glow of paint-on semiconductors comes from ornate quantum physics January 18th, 2019

Light up logic: Engineers from UTokyo and RIKEN perform computational logic with light January 18th, 2019

Graphene/ Graphite

Kiel physicists discover new effect in the interaction of plasmas with solids January 18th, 2019

Govt.-Legislation/Regulation/Funding/Policy

Brilliant glow of paint-on semiconductors comes from ornate quantum physics January 18th, 2019

Nanobiotix Plans to Conduct Registered Public Offering in the United States January 17th, 2019

2D materials may enable electric vehicles to get 500 miles on a single charge January 11th, 2019

Spintronics 'miracle material' put to the test: Physicists build devices using mineral perovskite January 11th, 2019

Chip Technology

Nanometrics to Announce Fourth Quarter and Full Year Financial Results on February 5, 2019 January 18th, 2019

Kiel physicists discover new effect in the interaction of plasmas with solids January 18th, 2019

Brilliant glow of paint-on semiconductors comes from ornate quantum physics January 18th, 2019

Light up logic: Engineers from UTokyo and RIKEN perform computational logic with light January 18th, 2019

Discoveries

Using bacteria to create a water filter that kills bacteria: New technology can clean water twice as fast as commercially available ultrafiltration membranes January 18th, 2019

Kiel physicists discover new effect in the interaction of plasmas with solids January 18th, 2019

Brilliant glow of paint-on semiconductors comes from ornate quantum physics January 18th, 2019

Light up logic: Engineers from UTokyo and RIKEN perform computational logic with light January 18th, 2019

Announcements

Nanometrics to Announce Fourth Quarter and Full Year Financial Results on February 5, 2019 January 18th, 2019

ULVAC Inc., and Oxford Instruments Plasma Technology collaborate to bring Atomic Scale Processing solutions to the Japanese Power and RF markets January 18th, 2019

Kiel physicists discover new effect in the interaction of plasmas with solids January 18th, 2019

Brilliant glow of paint-on semiconductors comes from ornate quantum physics January 18th, 2019

Tools

Nanometrics to Announce Fourth Quarter and Full Year Financial Results on February 5, 2019 January 18th, 2019

ULVAC Inc., and Oxford Instruments Plasma Technology collaborate to bring Atomic Scale Processing solutions to the Japanese Power and RF markets January 18th, 2019

Drilling speed increased by 20% yet another upgrade in the oil & gas sector made possible by graphene nanotubes January 15th, 2019

Chirality in 'real-time' January 14th, 2019

Grants/Sponsored Research/Awards/Scholarships/Gifts/Contests/Honors/Records

Brilliant glow of paint-on semiconductors comes from ornate quantum physics January 18th, 2019

Scientists program proteins to pair exactly: Technique paves the way for the creation of protein nanomachines and for the engineering of new cell functions December 21st, 2018

Strem Chemicals, Inc., Receives National Performance Improvement Honor: Company Recognized for Stakeholder Communications December 20th, 2018

Superfluidity: what is it and why does it matter? December 20th, 2018

NanoNews-Digest
The latest news from around the world, FREE



  Premium Products
NanoNews-Custom
Only the news you want to read!
 Learn More
NanoStrategies
Full-service, expert consulting
 Learn More











ASP
Nanotechnology Now Featured Books




NNN

The Hunger Project