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Technofile : Greased lightning

点击量:   时间:2017-08-07 01:02:02

Silicon with microscopic pores emits visible light when struck by ultraviolet rays or an electric current, making it a potential material for opto-electronic devices. But the silicon is easily oxidised, making it useless for the job. Purdue University researcher Jillian Buriak, however, has found that dunking the silicon in a Lewis acid, such as aluminium chloride,