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P-type and N-type Material for Solar Cell

06/14/2015 11:03 AM

Hi, what could be a good substitute p-type and n-type material for solar cell application- instead of doped silicon based materials?

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Anonymous Poster #1
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Re: P-type and N-type Material for Solar Cell

06/14/2015 11:31 AM

Sorry--proprietary.

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Re: P-type and N-type Material for Solar Cell

06/14/2015 12:53 PM
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#3

Re: P-type and N-type Material for Solar Cell

06/14/2015 4:51 PM

A lot of people are working on that same question. Really cheap solar cells would be a game changer.

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Re: P-type and N-type Material for Solar Cell

06/15/2015 4:21 AM

I'm currently working on one based on random household materials coated with cat wub.

No decent results, but I've rubbed a lot of stuff

Maybe it needs an equivalent thread to the Junk Yard Battery Contest?

Del

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Re: P-type and N-type Material for Solar Cell

06/15/2015 6:34 AM

Yes, I also thought that would be a great idea. Material which could be found at home, may be a couple steps of modification or process and innovation, solar energy will be cheap and convenience, typically in the tropics, I should say.

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#6

Re: P-type and N-type Material for Solar Cell

06/15/2015 11:17 AM

Titanium oxide (white paint pigment) and berry juice. (No Kidding!)

Instructions for building your own Gratzel solar cell:

http://teachers.usd497.org/agleue/Gratzel_solar_cell%20assets/instructions%20for%20making%20the%20gratzel%20cell.htm

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Re: P-type and N-type Material for Solar Cell

06/17/2015 12:24 PM

That seems pretty interesting, I did not however see any mention of cell efficiency?

Perovscite analog minerals having to do with lead iodide seem to have a high efficiency limits, compare favorably with silicon, and cadmium telluride types.

I have been working some with cells that are not particularly light sensitive, but are quite sensitive to temperature conditions, where the output resistance can conveniently be as low as a few ohms on a 1 ft square sheet of materials. One type offers about 1.5 V open circuit, while another offers a bit under a volt.

I am still working on this confidentially, and will not share further until we are certain of how it works, why it works, how to engineer better devices of this type, and the likely sources of heat, and points of application. I can say that cells of this type will have a pretty long service life in general, once a few minor bugs are solved.

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