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Student finds way to boost conductivity 400x totally by accident

Andrew Tarantola
Gizmodo
Thu, 14 Nov 2013 15:20 CST

Like a modern Henri Becquerel, Washington State University doctoral student Marianne Tarun's discovery came quite by accident. Her simple lab error has uncovered a new way to boost electrical conductivity of a crystal by 40,000 percent, simply by exposing it to light.

Tarun had accidentally left a sample of strontium titanate out on a counter before testing the crystal's conductivity and discovering the phenomenon. Her team suspects that photons knock loose electrons which boost the material's conductivity. Her follow up tests confirmed the effect and found that as little as 10 minutes of light exposure could propagate the effect for days on end.

Known as persistent photoconductivity, it's nowhere near the level of electrical throughput of what super-conducting materials can achieve. However, it does hold a great deal of practical potential. For one, the effect works at room temperature unlike superconductors which only function at a fraction of a degree from absolute zero.

read more http://www.sott.net/article/268836-Student-finds-way-to-boos...




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So strontium titanate is a photoresistor.

http://en.wikipedia.org/wiki/Photoresistor

I wonder how it compares with known photosensitive materials.

Free includes debt-free!

Know what Paul?

I would be very curious if the characteristics are all on or all off. I wonder if the degree of exposure could be regulated to produce different levels of resistance? This would be incredible in application!

If I disappear from a discussion please forgive me. My 24-7 business requires me to split mid-sentence to serve them. I am not ducking out, I will be back later to catch up.

I am hopeful your question will be investigated.

The energy companies are finally fighting a losing battle to suppress these types of discoveries.

So I'm curious?

How would you expose it while used inside? Reproduce the radiation or run a fiber optic tether outside? It did explain that the effects after exposure are temporary right?

Edit: never mind I thought it said "sunlight" lol

If I disappear from a discussion please forgive me. My 24-7 business requires me to split mid-sentence to serve them. I am not ducking out, I will be back later to catch up.

Lazy student discovers previously unknown fungus...

in dormitory mini-fridge.

Details at eleven.

I saw the best minds of my generation, destroyed by pandas starving hysterical naked

-Allen Ginsberg

Fleming's botched experiment

Rediscover what herbalists had known for years.

My Polish grandma picked all sorts of mushrooms.

Free includes debt-free!

See what I mean?

This just discredited the whole post and turned it into, Well, an onion. Me thinks you could be up to no good with this my friend. I have seen this before a few times.

If I disappear from a discussion please forgive me. My 24-7 business requires me to split mid-sentence to serve them. I am not ducking out, I will be back later to catch up.

I don't necessarily believe the 400x claim...

unless it's made of thorium - the miracle metal.

I saw the best minds of my generation, destroyed by pandas starving hysterical naked

-Allen Ginsberg

Then why not just say that?

Personally I would have respected intelligent opinion much more than random sarcasm with no point at all.

If I disappear from a discussion please forgive me. My 24-7 business requires me to split mid-sentence to serve them. I am not ducking out, I will be back later to catch up.

The thorium comment was sarcasm...

terbium, ytterbium, actinium, and gadolineum are the REAL miracle elements that will save humanity from herself.

sarcasm - or is it?

I saw the best minds of my generation, destroyed by pandas starving hysterical naked

-Allen Ginsberg

I understood that too,lol

But there is a huge difference between the three replies. In the first you make light of the original poster. In the second you make light of only yourself and in the third you try to make light of me. Of course they are real elements, but as for saving humanity? time will tell so no opinion from me about sarcasm or not because you may be right, lol

If I disappear from a discussion please forgive me. My 24-7 business requires me to split mid-sentence to serve them. I am not ducking out, I will be back later to catch up.

Funny; but do you fail to see the significance of this?

Quasi-superconductivity at "room temperatures". This will be a boon to computers, smart phones and electric vehicles, to mention only a few applications.

All of his posts are jokes

All of his posts are jokes and onion news, so no i dont think he knows or cares about the significance.

i thought it

was funny. I got a small lol out of it and was surprised to see ill will in the comments.

Thanks for being a fan.

You guys make it all possible.

I saw the best minds of my generation, destroyed by pandas starving hysterical naked

-Allen Ginsberg

I'm starting to wonder about that too

.

If I disappear from a discussion please forgive me. My 24-7 business requires me to split mid-sentence to serve them. I am not ducking out, I will be back later to catch up.

bump

.