.Two complementary approaches …… to tuning emission colors are based on a single source of YVO4 nanoparticles dopedwith Ln and P ions, as described by X. Liu and co-workers in the Communication onpage 906 ff. The emission wavelengths and intensity ratios of the emission bands can beprecisely controlled by the choice of dopant (Ln=Eu, Dy, Sm) and control of dopantconcentration. In this manner, the color of emitted light can be easily tuned under single-wavelength excitation.

Inside Cover

Feng Wang, Xuejia Xue, and Xiaogang Liu*

Two complementary approaches to tuning emission colors are based on a singlesource of YVO4 nanoparticles doped with Ln and P ions, as described by X. Liu andco-workers in the Communication on page 906 ff. The emission wavelengths andintensity ratios of the emission bands can be precisely controlled by the choice ofdopant (Ln¼Eu, Dy, Sm) and control of dopant concentration. In this manner, thecolor of emitted light can be easily tuned under single-wavelength excitation.