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Protein-Mediated Nanocrystal Assembly for Flash Memory Fabrication

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5 Author(s)
Tang, Shan ; Microelectron. Res. Center, Texas Univ., Austin, TX ; Chuanbin Mao ; Yueran Liu ; Kelly, D.Q.
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For the first time, we demonstrate that a chaperonin protein lattice can be used as a template to assemble nanocrystal (NC) arrays for Flash memory fabrication. This provides a new approach that can incorporate different types of NCs from a colloidal suspension for Flash memory fabrication. Lead selenide and cobalt NC assemblies achieved through this method have a high density of 9.5times1011/cm 2 and 1.6times1012/cm2, respectively, as well as good distribution uniformity. Devices exhibit promising Flash memory functions, with a flatband shift of 0.5 under 8-V operation, endurance >105 cycles, and retention time >104 s

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Electron Devices, IEEE Transactions on  (Volume:54 ,  Issue: 3 )