Interfacial Assembly of Peptide Carbon Dot Hybrids Enables Photoinduced Electron Transfer with Improved Photoresponse.

Assemblies at the interface represent a powerful tool for integrating organic and inorganic components into hybrid nanostructures. Carbon dots are both excellent electron donors and acceptors, offering opportunities for their potential uses in light-harvesting applications. To further improve their functions, integration of acceptor carbon dots into donor organic nanostructures is of great interest for improving photophysical properties useful for photoinduced electron transfer.

Origin of Intense Luminescence from Supramolecular 2D Molecular Crystals.

Luminescence enhancement in 2D molecular crystals (2D crystals) is promising for a variety of optical applications, yet the availability is limited because of unclear mechanism and inefficient design strategy of luminescence control. Herein, the room temperature phosphorescence from micron long molecular thin free-standing 2D crystals of a mono-cyclometalated Ir(III) complex designed at the water surface is reported. A large luminescence enhancement is observed from the 2D crystals at 300 K, which is comparable with the rigidified solution at 77 K suggesting room temperature phosphorescence origin of the luminescence.