Freestanding Ge/GeO_𝟐 Core-Shell Nanocrystals with Varying Sizes and Shell Thicknesses: Microstructure and Photoluminescence Studies

Figure 1

TEM images for the Ge-10, Ge-20, Ge-25, and Ge-30 NCs. Insets of (b) and (d) show the high-resolution lattice image of the Ge NCs core for the Ge-20 and Ge-30, respectively.

(a)

(b)

(c)

(d)