Home > Press > New “smart window” system with unprecedented performance: “Counterion-Induced Reversibly Switchable Transparency in Smart Windows”
 |
Abstract:
A new "smart" window system has the unprecedented ability to inexpensively change from summer to winter modes, darkening to save air conditioning costs on scorching days and returning to crystal clarity in the winter to capture free heat from the sun, scientists are reporting. Their study appears in the journal ACS Nano.
New “smart window” system with unprecedented performance: “Counterion-Induced Reversibly Switchable Transparency in Smart Windows”
Washington, DC | Posted on September 21st, 2011Ho Sun Lim, Jeong Ho Cho, Jooyong Kim and Chang Hwan Lee point out that the drive for energy conservation has fostered efforts to develop new types of window glass for everything from skylights and windows in houses to conference room walls in offices. "Smart" windows that reflect sunlight away from buildings in summer and switch back to full transparency in winter already are available. But they have many drawbacks, including high cost, rapid deterioration in performance, and manufacturing processes that involve potentially toxic substances. So, the researchers set out to develop a smart window that overcomes these drawbacks.
They discovered that using a polymer, so-called "counterions" and a solvent such as methanol was an inexpensive and less harsh way to make a stable, robust smart window. It has the added advantage of being extremely tunable — quickly and easily switching from 100% opaque to almost completely clear in seconds. "To our knowledge, such extreme optical switching behavior is unprecedented among established smart windows," the authors state. "This type of light control system may provide a new option for saving on heating, cooling and lighting costs through managing the light transmitted into the interior of a house."
####
For more information, please click here
Contacts:
Science Inquiries:
Michael Woods
Editor
202-872-6293
General Inquiries:
Michael Bernstein
202-872-6042
Copyright © American Chemical Society (ACS)
If you have a comment, please Contact us.Issuers of news releases, not 7th Wave, Inc. or Nanotechnology Now, are solely responsible for the accuracy of the content.
Bookmark:
| Related News Press |
News and information
Simulating magnetization in a Heisenberg quantum spin chain April 5th, 2024
NRL charters Navy’s quantum inertial navigation path to reduce drift April 5th, 2024
Discovery points path to flash-like memory for storing qubits: Rice find could hasten development of nonvolatile quantum memory April 5th, 2024
Materials/Metamaterials/Magnetoresistance
Nanoscale CL thermometry with lanthanide-doped heavy-metal oxide in TEM March 8th, 2024
Focused ion beam technology: A single tool for a wide range of applications January 12th, 2024
Announcements
NRL charters Navy’s quantum inertial navigation path to reduce drift April 5th, 2024
Discovery points path to flash-like memory for storing qubits: Rice find could hasten development of nonvolatile quantum memory April 5th, 2024
Energy
Development of zinc oxide nanopagoda array photoelectrode: photoelectrochemical water-splitting hydrogen production January 12th, 2024
Shedding light on unique conduction mechanisms in a new type of perovskite oxide November 17th, 2023
Inverted perovskite solar cell breaks 25% efficiency record: Researchers improve cell efficiency using a combination of molecules to address different November 17th, 2023
The efficient perovskite cells with a structured anti-reflective layer – another step towards commercialization on a wider scale October 6th, 2023
Home
Nanomaterials enable dual-mode heating and cooling device: Device could cut HVAC energy use by nearly 20% in the US December 2nd, 2020
Bosch Sensortec launches ideation community to foster and accelerate innovative IoT applications : Creativity hub for customers, partners, developers and makers February 18th, 2019
Iran Develops Water-Repellent Nano-Paint December 5th, 2018
Industrial
Boron nitride nanotube fibers get real: Rice lab creates first heat-tolerant, stable fibers from wet-spinning process June 24th, 2022
Nanotubes: a promising solution for advanced rubber cables with 60% less conductive filler June 1st, 2022
Protective equipment with graphene nanotubes meets the strictest ESD safety standards March 25th, 2022
OCSiAl receives the green light for Luxembourg graphene nanotube facility project to power the next generation of electric vehicles in Europe March 4th, 2022
 |
||
 |
||
| The latest news from around the world, FREE | ||
 |
||
|
|
||
| Premium Products | ||
 |
||
|
Only the news you want to read!
Learn More |
||
 |
||
|
Full-service, expert consulting
Learn More |
||
|
|
||