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World Community Grid Forums
Category: Completed Research
Forum: The Clean Energy Project - Phase 2 Forum
Thread: All Germanium-containing workunits failing |
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Thread Status: Active Total posts in this thread: 52
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svincent
Advanced Cruncher Joined: Jan 3, 2009 Post Count: 53 Status: Offline Project Badges: 
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I'm seeing a bunch of workunits which appear to contain bromine and germanium. Exotic stuff! Unfortunately all the Germanium-containing ones crash instantly with a message such as:
[ERROR] Failed to open either source or destination files while copying S.332.C29Ge1H18N4S5.MHPOXLWLLRJSMZ-UHFFFAOYSA-N.14.bp86.svp.n.opt/53.0 to S.332.C29Ge1H18N4S5.MHPOXLWLLRJSMZ-UHFFFAOYSA-N.14.bp86.svp.n.opt.53.0. Error: 2 Sample: https://secure.worldcommunitygrid.org/ms/devi....do?workunitId=1639383011 |
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Jim1348
Veteran Cruncher USA Joined: Jul 13, 2009 Post Count: 1066 Status: Offline Project Badges: 
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I see silicon and selenium too; interesting stuff. But the only one I had with germanium failed too (no longer on the website).
----------------------------------------It looks like the traditional semiconductors are being called on, for whatever reason. [Edit 2 times, last edit by Jim1348 at Mar 3, 2016 3:52:26 AM] |
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KLiK
Master Cruncher Croatia Joined: Nov 13, 2006 Post Count: 3103 Status: Offline Project Badges: 
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Bromine should be in "phase out phase", 'cause of human & ozone toxicity:
----------------------------------------https://en.wikipedia.org/wiki/Bromine#Organic_chemistry Germanium has a "health hazard": https://en.wikipedia.org/wiki/Germanium#Preca...ctive_germanium_compounds Selenium is only needed in human body, but can be toxic in larger amount! https://en.wikipedia.org/wiki/Selenium#Toxicity makes you think what kind of CLEAN Energy Project are they running?!  |
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Jim1348
Veteran Cruncher USA Joined: Jul 13, 2009 Post Count: 1066 Status: Offline Project Badges:
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makes you think what kind of CLEAN Energy Project are they running?! Don't use any device that has an LED or laser or any high-frequency capability such as a cell phone. They all include arsenic (as in gallium arsenide, gallium-indium-arsenide, etc.). And that is just the tip of the iceberg. |
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KLiK
Master Cruncher Croatia Joined: Nov 13, 2006 Post Count: 3103 Status: Offline Project Badges:
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makes you think what kind of CLEAN Energy Project are they running?! Don't use any device that has an LED or laser or any high-frequency capability such as a cell phone. They all include arsenic (as in gallium arsenide, gallium-indium-arsenide, etc.). And that is just the tip of the iceberg. well, LED is not so problem - 'cause they don't burst...unlike CFl, which burst their hazardous material around from time to time!  & no producer of cell phones says it's CLEAN or ecological product! CEP2 has it in agenda & their headline...  |
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adriverhoef
Master Cruncher The Netherlands Joined: Apr 3, 2009 Post Count: 1984 Status: Offline Project Badges: 
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Yes, well, on the part of ecological products, there is in fact a producer of mobile phones "working to create a new economy — one where social and environmental values become a natural part of doing business." They are called Fairphone, see http://fairphone.com
----------------------------------------If you do have a specific interest in "our" (human) carbon, water, or ecological footprint, in combination with mobile phones, maybe you would want to visit https://www.fairphone.com/2013/08/01/whats-in-a-life-cycle-assessment/ [Edit 1 times, last edit by adriverhoef at Mar 3, 2016 3:51:20 PM] |
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KLiK
Master Cruncher Croatia Joined: Nov 13, 2006 Post Count: 3103 Status: Offline Project Badges:
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guys, back to CEP2 research topic...
----------------------------------------CEP2 research is trying to create a CLEAN solar panel...as far as it goes, it's not supposed to use heavy metals, pollutants or toxic materials... so the question is: WHY is CEP2 crunching data on those heavy metals? |
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Yarensc
Advanced Cruncher USA Joined: Sep 24, 2011 Post Count: 134 Status: Offline Project Badges:
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CEP2 research is trying to create a CLEAN solar panel...as far as it goes, it's not supposed to use heavy metals, pollutants or toxic materials... so the question is: WHY is CEP2 crunching data on those heavy metals? Not a chemist, but I'm going to guess that it depends what compound they're a part of. for example: Sodium (Na) is explosive when exposed to water, Chlorine (Cl) is a highly toxic/corrosive gas. But when you combine them into NaCl, you get harmless table salt (well, causes heart attacks, but relatively harmless) EDIT: But I could be completely wrong and heavy metals are bad regardless and they're just including them to more thoroughly cover chemical space [Edit 1 times, last edit by Yarensc at Mar 4, 2016 5:29:17 PM] |
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svincent
Advanced Cruncher Joined: Jan 3, 2009 Post Count: 53 Status: Offline Project Badges:
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I'm sure non-toxicity will be one of the criteria people will look for in an organic semiconductor. That, along with efficiency, cheapness, stability, ease of synthesis, and doubtless a few other things.
The only element I've seen in the cep2 tasks that comes even close to being a metal is germanium, and that's not really a metal at all: more closely related to silicon. There's certainly no reason to suppose that any compound containing germanium will automatically be toxic. On a related note: most high performing perovskite-based solar cells do contain heavy metals, often lead. It's one of the factors holding them back from more widespread adoption as yet: that and stability. No doubt appropriate toxicity studies can and will be done on rats. Still the problem may be overrated; after all we're talking about very thin layers here with little material in them. |
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KLiK
Master Cruncher Croatia Joined: Nov 13, 2006 Post Count: 3103 Status: Offline Project Badges:
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well, I've finished my mech.eng. degree...so it's that & knowledge of sports (preferably F1), in which Bromine was banned from use in Mercedes engines some 15-18y ago (it was in McLaren Mercedes car)...so use of some heavy metals, that are banned by use or in "leading off production scale" is a problem from CEP2 - if we have a CLEAN kind of research!
----------------------------------------& yes, solar panels have heavy metals...they are stable for 20-30y...but after that they become a "waste disposal issue"...which is a problem for a whole industry... idea for a CLEAN solar cell in CEP2 is supposed to be "bio-degradable & non-toxic to environment"! why are those elements in those cells?! until some scientist give us an answer, we'll never know.... |
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