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One of the first screen-printed CNT-FE arrays: (a,c) images of the light emitted from various phosphors by use of the screen-printed FE cathode arrays; (b,d) FE characteristics of several screen-printed CNT films; the inset in (c)—a lifetime test showing the stability of the emission current. (a,b) reprinted with permission from [104]; (c,d) reprinted from [116].
