Vapochromism and Enhanced Yellow Emission of CuI Under Ammonia Vapor.

Key Points

• This research aims to explore the yellow emission properties of CuI when exposed to ammonia vapor and nitrogen-coordinating species.
• Exposure of CuI powders to various amino-containing organic molecules
• Observation of emissive centers and emission spectra at ~615 nm
• Development of a vapor-assisted strategy for tuning CuI emission
• Yellow emission at ~615 nm is consistently observed with various amino-containing molecules.
• Formation of Cu(I)-amine surface complexes is linked to the enhanced emission.
• Highlights potential applications of CuI as vapochromic probes and phosphors.

Abstract