Patent ID: 8309741

Claim:
A benzocarbazole-intercalated layered double hydroxides (LDHs) composite luminescent material, wherein the chemical formula of the composite luminescent material is [(M 2+ ) 1−x (M 3+ ) x (OH − ) 2 ] x+ (A − ) x .mH 2 O, in which 0.1≦x≦0.33, m is number of interlayer crystallization water molecules, and is in range of 0.5-6, M 2+ is Mg 2+ , M 3+ is Al 3+ , and A − is 2-hydroxy benzo[α]carbazole-3-carboxylate anion; and wherein the composite luminescent material has crystal structure of LDHs-like material, in which metal cations and hydroxide anions form multiple octahedrons via covalent bonds, the multiple octahedrons form sheet like structure via sharing edges, and 2-hydroxy benzo[a]carbazole-3-carboxylate anions are intercalated into LDHs layers to form anionic type supramolecular layered composite luminescent material with 2-hydroxy benzo[a]carbazole-3-carboxylate anion uniformly dispersion.