Fig. 3

High-resolution transmission electron microscopy (HR-TEM) images of Q-Tw-Cs@Se NPs (A–C), field emission scanning electron microscopy (FE-SEM) image (D) and energy dispersive X-ray (EDX) spectrum of Q-Tw-Cs@Se NPs (E).

High-resolution transmission electron microscopy (HR-TEM) images of Q-Tw-Cs@Se NPs (A–C), field emission scanning electron microscopy (FE-SEM) image (D) and energy dispersive X-ray (EDX) spectrum of Q-Tw-Cs@Se NPs (E).