
After a lengthy nine months of development, IBM has recently announced its new thin-film solar cell, which is made from cheaper materials while features an efficiency of 9.6% (40% higher than previous prototypes). The new thin film technology uses copper, tin, zinc, sulfur and selenium to take the place of traditional copper indium gallium selenide or cadmium telluride. Besides, the researchers also adopt a new kind of solvent- hydrazine, which is less costly and decomposes more easily. Instead of manufacturing the cells, IBM claims that they’d prefer to license out the new technology when the time comes. [Read the rest of this entry...]