Modeling polarization for Hyper-NA lithography tools and masks
Kafai Lai, Alan E. Rosenbluth, et al.
SPIE Advanced Lithography 2007
The ordered cocrystallization of nanoparticles into binary superlattices enables close contact of nanocrystals with distinct physical properties, providing a route to metamaterials design. Here we present the first electronic measurements of multicomponent nanocrystal solids composed of PbTe and Ag"2Te, demonstrating synergistic effects leading to enhanced p-type conductivity. First, syntheses of size-tuneable PbTe and Ag"2Te nanocrystals are presented, along with deposition as thin-film nanocrystal solids, whose electronic transport properties are characterized. Next, assembly of PbTe and Ag"2Te nanocrystals into AB binary nanocrystal superlattices is demonstrated. Furthermore, binary composites of varying PbTe-Ag"2Te stoichiometry (1:1 and 5:1) are prepared and electronically characterized. These composites show strongly enhanced (conductance 100-fold increased in 1:1 composites over the sum of individual conductances of single-component PbTe and Ag"2Te films) p-type electronic conductivity. This observation, consistent with the role of Ag"2Te as a p-type dopant in bulk PbTe, demonstrates that nanocrystals can behave as dopants in nanostructured assemblies. © 2007 Nature Publishing Group.
Kafai Lai, Alan E. Rosenbluth, et al.
SPIE Advanced Lithography 2007
David B. Mitzi
Journal of Materials Chemistry
R. Ghez, M.B. Small
JES
Sang-Min Park, Mark P. Stoykovich, et al.
Advanced Materials