Print your own transistors at home

Looks like quite a process but interesting none the less.

Yes it does look like quite a process, and something likely requiring some chemicals and such that you just can’t pick up off the shelf easily (in fact - though I haven’t looked - an individual may not be able to buy them easily or at all).

There also seems to be some steps left out (or at least not as well explained - what’s that “spin the semiconductor” part?).

Finally - what are the specs on the resulting parts? It seems like this would be an interesting “science experiment”-type project for reprap builders, but looking at the pics, these transistors are very large, and take quite a number of steps to produce.

I don’t see this as being something practical unless they are able to reduce the size by quite a large amount (and if the specs of the resulting parts are such that the device is useful); still, though - its pretty amazing they were able to do it in such a manner…

:slight_smile:

You can also make your own organic LEDs but I think in both these cases for now it would be a W?BIC* type of situation. So though I agree on all points, as with all technology this is just a single step. But I thought it’s interesting to think that maybe in the future we could possibly send out our PCB designs to be printed and they would come back with the tracks AND transistors printed right on the board.

*Why? Because I can.

The glove he’s wearing on page 31 is a good indication of how likely the average schmuck is going to be able to get the chemical he’s holding. ;D (the phrase “not very” comes to mind)

Very interesting indeed. Maybe in the future we can all go to a booth much like a shower station, clean outselves up, dry, and get circuits printed all over ourselves (for what purpose? superhuman capabilities?)

The video below the news has a funny clip where a yellow sign says you are being monitored ;D I didn’t bother to turn the sound on so I don’t know what they were talking about.

The glove he’s wearing on page 31 is a good indication of how likely the average schmuck is going to be able to get the chemical he’s holding. Grin (the phrase “not very” comes to mind)

I decided to do some checking (Google’s wonderful) - on page 31, he is supposedly “mixing P3HT in Toluene” - according to page 9 of the same document, “P3HT” is “thiophene”:

Its MSDS (http://www.mathesongas.com/pdfs/msds/MAT23380.pdf) really doesn’t reveal it to be a very harmful chemical (in the short term), provided you take some precautions (gloves and other standard labwear). Some more googling, though, actually reveals that “P3HT” is “poly(3-hexylthiophene)”.

Some more googling reveals you can buy it online here:

http://www.bldscience.com/ProductDetails.asp?ProductCode=AC367380050

5 grams for $85.00 USD (!). As far as I can tell, they’ll sell to the general public, too (though I didn’t go through the sign up process - some places won’t sell certain chemicals to individuals, only institutions).

I imagine that the other components and such could probably be procured with some minor tenacity…

:slight_smile: