Figure 5From: Effect of Size-Dependent Thermal Instability on Synthesis of Zn2 SiO4-SiO x Core–Shell Nanotube Arrays and Their Cathodoluminescence Propertiesa Cross-sectional view SEM image of a ZSO sample and corresponding room-temperature CL spectrum in (b); c, d, e, and f CL images of the array under the 310, 380, 440, and 550 nm emissions, respectivelyBack to article page