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Solar cells give ray of hope to Swiss scientists

This content was published on Jul 31, 2003 The so-called nanocristalline solar cells have been shown to be much cheaper and just as effective as the silicon cells which have been used to make solar energy until now. Thanks to new technology, the cost of making the nanocristalline cells could tumble by as much as 80 per cent. Professor Michael Grätzel and his…