Fine tuning the microenvironment of [EuW10O36]9- anion leads to the large enhancement of the red light luminescence

Four new luminescent materials with an intense red light emission have been synthesized by fine tuning the microenvironment of [EuW10O36]9- POM anions using different compositions of layered double hydroxides (LDHs). The intense red light is attributed to vibronic coupling of LDHs267