Dual-band simultaneous lasing in MOFs single crystals with Fabry-Perot microcavities

• 来源期刊: 中国科学:化学（英文版）
• 年，卷（期）: 2019,（8）
• 页码范围: 987-993
• 页数: 7页
• 语种: 英文

摘要

Multi-band microlasers based on single microcrystalline materials with Fabry-Perot (F-P) cavities are critically and technologically essential.Here,we demonstrate simultaneous dual-band lasing output (615 and 685 nm) in metal-organic frameworks (MOFs) and organic dyes hybrid single crystals,which support F-P resonances.Through a two-step assembly strategy,two different types of cationic pyridinium hemicyanine dye molecules can be encapsulated into the channel pores of anionic bioMOF-1-2Me successfully.In addition,the employment of the host-guest system significantly increases the dye loading,enhances luminescent efficiency,and diminishes the aggregation-caused quenching (ACQ) effect in the resultant MOFs/dye composites.This finding not only combines the characteristic of MOFs materials with excellent luminescent properties of organic dyes,but also points out a simple and promising strategy to design multi-band microlasers based on F-P mechanism,opening a low-cost avenue for the rational design of miniaturized lasers in the future.