Design Con 2015
Breaking News
Comments
Newest First | Oldest First | Threaded View
<<   <   Page 2 / 2
R_Colin_Johnson
User Rank
Blogger
re: Brightest nanoparticles shun quantum
R_Colin_Johnson   1/19/2011 10:55:34 PM
NO RATINGS
Though experiments can only take us so far, but it sounds like you may be onto something that's worth a try!

R_Colin_Johnson
User Rank
Blogger
re: Brightest nanoparticles shun quantum
R_Colin_Johnson   1/19/2011 10:32:10 PM
NO RATINGS
Using both together would be a fluorescent nanoparticle whose size is matched to the wavelength of its emission, thus combining quantum confinement with particle fluorescence. Not sure whether such a hybrid is feasible, but I am sure that it is a lot easier to imagine than to do.

pixies
User Rank
Rookie
re: Brightest nanoparticles shun quantum
pixies   1/19/2011 8:36:31 PM
NO RATINGS
I did not read the original article, but "brightness" seems to be a poor choice of metric. When comparing two emitters, Quantum Efficiency is usually the proper measure. You can have a emitter with a low quantum efficiency but still make it brighter by cranking up the injection current. I guess what the author was trying to say is that since the nanoparticles were not quantized, the Density of State at the emission energy was higher therefore each particle was capable of emitting more photons.

R_Colin_Johnson
User Rank
Blogger
re: Brightest nanoparticles shun quantum
R_Colin_Johnson   1/19/2011 6:41:38 PM
NO RATINGS
Quantum dots used to be the world's brightest nanoparticles, but now Clarkson University has one-upped quantum confinement in favor of encapsulating fluorescent organic nanoparticles inside silicon dioxide. I am sure that quantum-dot researchers will volley back to try and regain the lead. Nevertheless, @NextGenLog I predict that ultra-sensitive detectors using functionalized silica nanoparticles will appear in three years.

<<   <   Page 2 / 2


Top Comments of the Week
Flash Poll
Like Us on Facebook

Datasheets.com Parts Search

185 million searchable parts
(please enter a part number or hit search to begin)
EE Life
Frankenstein's Fix, Teardowns, Sideshows, Design Contests, Reader Content & More
<b><a href=Betajet">

The Circle – The Future's Imperfect in the Present Tense
Betajet
5 comments
The Circle, a satirical, dystopian novel published in 2013 by San Francisco-based writer Dave Eggers, is about a large, very powerful technology company that combines aspects of Google, ...

Max Maxfield

Recommended Reads From the Engineer's Bookshelf
Max Maxfield
27 comments
I'm not sure if I read more than most folks or not, but I do I know that I spend quite a lot of time reading. I hate to be idle, so I always have a book or two somewhere about my person -- ...

Martin Rowe

Make This Engineering Museum a Reality
Martin Rowe
Post a comment
Vincent Valentine is a man on a mission. He wants to make the first house to ever have a telephone into a telephone museum. Without help, it may not happen.

Rich Quinnell

Making the Grade in Industrial Design
Rich Quinnell
16 comments
As every developer knows, there are the paper specifications for a product design, and then there are the real requirements. The paper specs are dry, bland, and rigidly numeric, making ...

Special Video Section
The LT8640 is a 42V, 5A synchronous step-down regulator ...
The LTC2000 high-speed DAC has low noise and excellent ...
How do you protect the load and ensure output continues to ...
General-purpose DACs have applications in instrumentation, ...
Linear Technology demonstrates its latest measurement ...
10:29
Demos from Maxim Integrated at Electronica 2014 show ...
Bosch CEO Stefan Finkbeiner shows off latest combo and ...
STMicroelectronics demoed this simple gesture control ...
Keysight shows you what signals lurk in real-time at 510MHz ...
TE Connectivity's clear-plastic, full-size model car shows ...
Why culture makes Linear Tech a winner.
Recently formed Architects of Modern Power consortium ...
Specially modified Corvette C7 Stingray responds to ex Indy ...
Avago’s ACPL-K30T is the first solid-state driver qualified ...
NXP launches its line of multi-gate, multifunction, ...
Doug Bailey, VP of marketing at Power Integrations, gives a ...
See how to ease software bring-up with DesignWare IP ...
DesignWare IP Prototyping Kits enable fast software ...
This video explores the LT3086, a new member of our LDO+ ...
In today’s modern electronic systems, the need for power ...