Incorporation of luminescent moieties into metal-organic frameworks(MOFs) has resulted in numerous photoluminescence(PL) sensors based on chromophore-analyte interactions. However, most of them are only highly sensitive to few analytes limited by the single luminescent centers in MOFs. To improve the application scopes, dual-emission MOFs were therefore emerged, which can significantly improve the sensitivity by monitoring the relative emission intensity of two luminescent centers. This short review will highlight the recent progress on dual-emission MOFs as highly sensitive sensors for probing of volatile organic molecules(VOMs), picric acid and peroxynitrite, and as self-calibration PL thermometer.
