More:

http://www.sciencedaily.com/releases/2007/05/070502143631.htm

2) Just two months ago researchers at a New Zealand University revealed

a breakthrough in solar technology with the use of synthetic chlorophyll

derived from the light-harvesting pigment plants use for photosynthesis.

The green solar cells are more environmentally friendly than silicon-based

cells as they are made from titanium dioxide – a plentiful, renewable and

non-toxic white mineral obtained from New Zealand’s black sand.

“The expected cost is one 10th of the price of a silicon-based solar panel,

making them more attractive and accessible to home-owners.”

More:

http://www.sciencedaily.com/releases/2007/04/070405171830.htm

3) A year ago researchers at a South African University devised a method of

solar panel manufacturing using CIGS which is another substance that is

cheaper and more efficient than silicon panels. This product is being

manufactured at present and the company says the panels will be

available this summer.

More:

http://www.scienceinafrica.co.za/2004/november/energy.htm

also:

http://www.int.iol.co.za/index.php?set_id=1&click_id=116&art_id=vn20060211110132138C184427

Company's website:

http://www.ife-net.de/en/solar.php