Breaking News
Comments
Oldest First | Newest First | Threaded View
Page 1 / 4   >   >>
LarryM99
User Rank
CEO
Free (and better) lunch!
LarryM99   6/26/2014 8:07:56 PM
NO RATINGS
Not only is there a clear win in terms of cost and lowered toxicity, but it also takes tofu out of the market! This is a clear win all around.

Seriously, it's interesting that this was not looked at earlier. Obviously the current solution was deemed 'good enough' and researchers moved on to other things. Kudos to Dr. Major for going back over that assumption and improving on the process.

Larry M.

wilber_xbox
User Rank
Manager
Re: Free (and better) lunch!
wilber_xbox   6/27/2014 9:02:52 AM
NO RATINGS
Really good material to forward to researcher so that they donot give up on alternatives to costly and inefficient processes/materials. And as far as Tofu goes, i also donot like it as its apperance and taste do not match.

Max The Magnificent
User Rank
Blogger
Re: Free (and better) lunch!
Max The Magnificent   6/27/2014 9:48:25 AM
NO RATINGS
@LarryM99: Not only is there a clear win in terms of cost and lowered toxicity, but it also takes tofu out of the market!

As you say -- we're all winners here :-)

perl_geek
User Rank
Freelancer
In defense of tofu!
perl_geek   6/27/2014 5:02:46 PM
NO RATINGS
Great stuff, especially as the filling for a sandwich on rye bread or pumpernickel.


The failure to use it earlier is probably due to people looking up the subject in a textbook, seeing the standard description involving cadmium, and assuming that was the last word.

perl_geek
User Rank
Freelancer
Flexible solar panels
perl_geek   6/27/2014 5:15:37 PM
NO RATINGS
While we're on the topic of solar panesl, what's the state of the art in flexible panels?

I would love to be able to work outside under a golf umbrella whose panels were proving the power to keep my laptop running. The panels wouldn't have to survive "civil servant's brolly" regimes of folding, just be flexible enough to allow the canopy to be closed.

That would imply around 40 - 50 watts from a 2-metre diameter. Around 3m square, so 15 - 17 watts/m. square. How close is that to reality?

 

docdivakar
User Rank
Manager
Re: Free (and better) lunch!
docdivakar   6/27/2014 6:31:26 PM
NO RATINGS
@Max: Sorry! I am not quite ready to bid adieu to Tofu... it sure depends on how you cook it!

MP Divakar

Les_Slater
User Rank
CEO
Percentage cost savings?
Les_Slater   6/27/2014 6:43:04 PM
NO RATINGS
Presuming no process cost difference to use magnesium chloride instead of cadmium chloride the question remains, just what percentage of total manufacturing cost is the cadmium chloride material cost? If it's 20% then cost savings is close to 20% but if the cadmium chloride is only 1%... 

David Ashton
User Rank
Blogger
Re: Free (and better) lunch!
David Ashton   6/27/2014 7:54:24 PM
NO RATINGS
@docdivikar...re tofu....serve it with bean sprouts and I'm sure Max would like it :-)

betajet
User Rank
CEO
Re: Percentage cost savings?
betajet   6/27/2014 8:01:00 PM
NO RATINGS
The problem is that cadmium chloride is toxic, so working with it is risky and requires special equipment.  Here's another article on the magnesium chloride breaktrough: IEEE Spectrum.

Some quotes:

Cadmium chloride is filthy stuff. Its cadmium ions are extremely toxic, causing heart disease, kidney disorders, and a host of other health problems. One accidental spill of the water-soluble compound can wipe out fish from a river.

...

And rather than needing to use fume hoods and gas masks, as is required during the cadmium chloride process, "We can deposit magnesium chloride using an airbrush, spraying it on the back of the solar cell," says Major.


Les_Slater
User Rank
CEO
Re: Percentage cost savings?
Les_Slater   6/27/2014 8:17:46 PM
NO RATINGS
Toally agree, even if costs were the same, or savings minimal, then going the non toxic route should be done. But the title of the article is "Bean Curd Component Could Slash Solor Panel Costs". Note the key operative here is "Slash", which implies a qualitative difference. Interested in whether that's true, and if so, by how much.

 



Page 1 / 4   >   >>


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

Aging Brass: Cow Poop vs. Horse Doo-Doo
Max Maxfield
9 comments
As you may recall, one of the things I want to do with the brass panels I'm using in my Inamorata Prognostication Engine is to make them look really old. Since everything is being mounted ...

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)