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


EE Life
Frankenstein's Fix, Teardowns, Sideshows, Design Contests, Reader Content & More
Max Maxfield

Synthesize Your Own RTOS for FREE!
Max Maxfield
8 comments
My chum Bob Zeidman, president of Zeidman Technologies, is always involved in something interesting. Some time ago, for example, he told me about SynthOS. This little scamp can ...

EDN Staff

11 Summer Vacation Spots for Engineers
EDN Staff
11 comments
This collection of places from technology history, museums, and modern marvels is a roadmap for an engineering adventure that will take you around the world. Here are just a few spots ...

Glen Chenier

Engineers Solve Analog/Digital Problem, Invent Creative Expletives
Glen Chenier
11 comments
- An analog engineer and a digital engineer join forces, use their respective skills, and pull a few bunnies out of a hat to troubleshoot a system with which they are completely ...

Larry Desjardin

Engineers Should Study Finance: 5 Reasons Why
Larry Desjardin
45 comments
I'm a big proponent of engineers learning financial basics. Why? Because engineers are making decisions all the time, in multiple ways. Having a good financial understanding guides these ...

Flash Poll
Top Comments of the Week
Like Us on Facebook
EE Times on Twitter
EE Times Twitter Feed

Datasheets.com Parts Search

185 million searchable parts
(please enter a part number or hit search to begin)