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> Tin Dioxide Coatings (sn02), Can I do it ? Or What ?
Areal Person
Posted: April 06, 2009 04:43 am
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Hi,

Is it reasonable for me to coat my own glass panels with Sn02
(Tin Dioxide) ?

Iím researching Dye-Sensitized solar cell technology.

Itís a sandwich like thisÖ

Glass
Thin coating of Tin Dioxide
Ti02
A Dye
Iodide electrolyte
Graphite layer
Tin Dioxide (again)
Glass

Thatís the sandwich.

I can do it except for the Tin Dioxide coatings.

How can I do the tin coatings ?

Or is there a better solution?

Maybe someone knows a better recipe ?

I would like to make the nanotubes, but I think I would need a factory for that.
Right ?

Thanks,
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Sch3mat1c
Posted: April 06, 2009 04:58 am
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Eh, nanotubes aren't that bad, pretty standard as CVD goes these days I think. SnO2 is fairly easy, too... as I recall, fume some SnCl4 (believe it has to be anhydrous, but I could think of reasons why the hydrated stuff might work better) over the glass and basically there you go.

What form of TiO2 is required?

Tim


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Areal Person
Posted: April 06, 2009 03:25 pm
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@Tim,

For the Ti02 you can use rutile or anatase as brookite has no
photocatalytic properties. All the test are using anatase.

Could you explain in simple terms how I might go about applying
a thin Sn02 coating.

Do I just use an SnCl4 vapor and hold the glass over it ?
How hot does that stuff need to be ?

Also, I heard the term Tech Glass e.g. "Sn02:F". Any Ideas on that ?

And about the nanotubes ? I looked but can't find a process
which one would you recommend ?

Thanks much,
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Sparks
Posted: April 07, 2009 11:20 pm
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This post wont really help you much, but I researched this a little while ago for a question I had in the physics section of this forum.

Basically, I found the easiest way was to place some SnCl4 on the glass and heat iton a hotplate. This only really works for small blocks otherwise it cracks.

I'll see if I can dig out my research, I found all of the info from sites on google, but I've since decided my project would be too expensive so doubt I have the files anymore...
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Sparks
Posted: April 07, 2009 11:32 pm
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http://www.teralab.co.uk/Experiments/Condu...Glass_Page1.htm

You may also want to look into 'ITO' glass, which may or may not work well for you if you can find a supplier (its much easier to buy large sheets of conductive glass than to make it)

HTH
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