Aromatic ring compounds with different conjugation degrees in a boronic acid matrix to realize multicolor phosphorescence for time division colorful multiplexing

. Thus, 2-Ph@BA, 9-Ph@BA and 1-Py@BA RTP emission showed a significant redshift, leading to green, yellow and red phosphorescence colors, respectively. Finally, RTP CD composites are used in information security and time division colorful multiplexing based on the synthesized samples with different phosphorescence colors and lifetimes.