Talk:Third generation solar cell

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"Silicon is a limited resource" - a look at the wikipedia page on silicon shows that it is the second most abundant element on earth - so I've removed this statement....

I agree that's a pretty weird statement. In some sense, all resources are limited, but if you're rating resources on their availability, the 2nd most common element in the earth's crust (2nd only to oxygen) is going to be pretty high on the list. What the original author is probably intending to say is that PV-cell quality silicon is in high commercial demand now so organic cells might be a good alternative (as if the oil used to make the polymers wasn't limited...), but that's a highly questionable line of argument and it's part of the obvious promotional bias in this article. There's way too much heavily biased cheerleading in this, but "3rd generation solar cell" is (IMO) a contentless promotional buzzword anyway. There's not much agreement about what it means other than "novel." The first listed example, CIGS cells, are stated to be not PN junctions but "complex heterojunctions". Well, thing is these heterojunctions ARE PN JUNCTIONS, and CIGS cells are really just another kind of PN heterojunction photovoltaic, made from those virtually unlimited resources, copper, gallium, indium, and selenium. The world is just rolling in excess indium inventory, you know. However, the main solar cells article (more correctly) identifies them as part of the 2nd generation trend toward thin films. The technical competence of this article is generally very low and its viewpoint is more about marketing than information. If this ever comes up for a deletion vote, I'll go on record as pro-deletion unless someone can come up with some actual accurate information on the topic. I'm going to change the lead in to something more neutral, but I don't think this article has any good reason to be here. Tarchon 02:30, 8 November 2007 (UTC)