Light ef­fi­ciency

Down to Earth - - SCIENCE -

— nano-sized QUAN­TUM DOTS semi­con­duc­tor par­ti­cles that pro­duce bright, sharp, colour light—have moved from re­search labs into com­mer­cial prod­ucts like high­end TVs, e-read­ers, lap­tops, and even some LED light­ing. How­ever, QDs are ex­pen­sive to make. A new method to ex­tract more ef­fi­cient and po­larised light from QDs over a largescale area com­bines QD and pho­tonic crys­tal tech­nol­ogy and could lead to brighter and more ef­fi­cient mo­bile phone, tablet, and com­puter dis­plays, as well as en­hanced LED light­ing. Ap­plied Physics Let­ters, Au­gust 3

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