Conductive glas selfmade DIY Solar cell transparent electrode ITO SnO2 tinoxide semiconductor

http://www.overunity.com/index.php?topic=6699
How to make a selfmade DIY conductive glas transparent electrode with low resistance ITO SnO2 tinoxide semiconductor layer for a selfmade DIY Solar cell solarcell. Great easy way to make glas electrical conductive and have a transparent electrode layer fro Graetzel solarcells and a solarpanel .

Here are the staps to make it:
1. Dissolve 5 Gramms of wet SnCl4 in 5 mL Methanol
2. Place a tile with the shiny side up into the oven
3. Heat the oven at 600 degrees
4. Place a heat resistent microscope slide on another tile into the oven
5. Let it heat for about 10 minutes and pull it out via the tile again when it is hot enough!
6. Spray the glas slide with the SnCl4 solution
7. Put it back into the oven for about 2 minutes and pull it then out again
8. Spray it again with the SnCl4 solution and put it back into the oven again and repeat this process until the desired electrical conductivity is reached.
Due to the heat the SnCl4 decomposes to SnO2.
Don´t breath the fumes and do it only in a well ventilated area, best outside !
9. Test the electrical conductivity with a digital ohmmeter and repeat the spraying-heating process until you are satisfied with the electrical resistance of the SnO2 layer.


This video is from the Youtube user HJesu who gave me permission to copy it to my Youtube channel.
http://www.youtube.com/user/hjesu

This will make it very easy to selfbuild great and big selfmade Solarcells.
Enjoy !

Regards, Stefan.

Category:

Science & Technology

Tags:

• Conductive
• glas
• selfmade
• DIY
• Solar
• cell
• transparent
• electrode
• ITO
• SnO2
• tinoxide
• semiconductor

[overunitydotcom]

The measurement at the end of this movie is just to show the electrical resistance of the SnO2 layer !

It is in the range of about 1 to 2 KOhms per cm. So it is unfortunately still a bit high and a solar cell made with it, will only have milliamps output as this electrode

is in the KOhm range. If we would have an transparent electrode that is in the Ohm range, the output current would be much higher !

That is why the professional companies probably also use IndiumOxide additionally ...

[overunitydotcom]

The measurement at the end of this movie is just to show the electrical resistance of the SnO2 layer !

It is in the range of about 1 to 2 KOhms per cm. So it is unfortunately still a bit high and a solar cell made with it, will only have milliamps output as this electrode

is in the KOhm range. If we would have an transparent electrode that is in the Ohm range, the output current would be much higher !

That is why the professional companies probably also use IndiumOxide additionally ...

[sclarenonz]

I replace methanol by acid or hydrochloric acid sufurico??

thanks for video

[george456789]

Is that 600C or 600F?? I guess most of the world uses C but then there are those pesky americans who resist change.

[RAWRnathansaurusrex]

now they just need to use this for phone screens, and then metal solar for the backings :)

[diveborg13]

How many Volts do you get per tile? and i noticed the tile you tested was smaller

[cinderskenney]

easy bake solar panels!