That, he says, should be enough to make dye-sensitised cells competitive with silicon.

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It is my belief that nut allergy and most food allergies are often a result of the body becoming sensitised to them through the skin.

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This filled her with contempt for the Communist fellow-travellers she encountered in Washington and Hollywood, and sensitised her to the similarities between the New Deal and central planning.

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"They have had no direct human contact for some time to ensure that, after the intensive care they first had when they arrived, they are de-sensitised from people feeding them, " Mr Byrne said.

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Despite the game's 18-rated status, she said many children would have played it, and similar games, at home with elder siblings, and that they risked being de-sensitised to the violence involved.

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Or, if you want the professor's technical explanation, "dye sensitised solar cells with titanium oxide layers on a surface with light absorbing dye molecules adsorbed on surface which can generate electricity".

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Dye-sensitised solar cells seek to mimic this assembly line.

ECONOMIST: Improved devices may make better use of sunlight