We present electrical measurements of single Au and CdSe nanocrystals. The devices are fabricated using a hybrid scheme which combines electron beam lithography and wet chemistry to bind nanocrystals in tunneling contact between two closely spaced metallic leads. The currentndash;voltage characteristics of these devices exhibit a Coulomb staircase with a charging energy of sim;50 meV. This technique is readily adapted to the study of a host of nanocrystals made by solution chemistry. copy;1996 American Institute of Physics.
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