Water-enhanced high-efficiency persistent room-temperature phosphorescence materials for temperature sensingviacrystalline transformation

Abstract

Organic persistent room-temperature phosphorescence (pRTP) materials have shown potential advantages in stimuli-responsive optoelectronic applications due to their long-lived lifetime and environmental sensitivity. However, the development and utilization of pRTP materials...

Y‐Shaped D‐A Type Thioxanthone Derivatives: Mechano‐Induced Thermally Activated Delayed Fluorescence and High‐Contrast Mechano‐Responsive Luminescence

“…This shoulder peak could be deduced as a RTP (room-temperature phosphorescence) emission, from the temperature dependent PL measurements (Figure S8). It is revealed in previous work [34][35][36][37][38] that the emission quenched by the intermolecular edge to edge π-π stacking of planar TX unit in the crystal. The molecules analogously formed dimer with opposite molecular orientation in the crystals of these "Y-shape" compounds via weak intermolecular interactions.…”

Recent progress with the application of organic room-temperature phosphorescent materials

“…8b). 72 The water in MP-G crystals could form hydrogen bonds to help enhance RTP emission and obtained the results that the phosphorescence quantum yield increased from 0.5% to 12.8% and the lifetime increased from 72 ms to 880 ms compare to MP crystals. When temperature decreased from 300 to 230 K, the color would change from green to blue and keep a linear relationship with temperature in CIE coordinates, together with crystalline transforming from MP-G to MP-B.…”

Molecularly Engineered Room-Temperature Phosphorescence for Biomedical Application: From the Visible toward Second Near-Infrared Window

“…The size dependence of the room-temperature phosphorescence of transition metal complexes can be clarified by increasing the number of Cu­(I) atoms from 4 (Figure a) to 14 (Figure e) as the exterior cage, while the Au­(I) core single atom remained unchanged. Discovering what would happen if the (both) number of atoms from the core and cage of metal complexes continue to precisely grow is a challenging yet highly rewarding endeavor, which contributes to the development of functional phosphorescent materials. − The alteration of the metallic composition of transition metal complexes paved the way for designing and fabricating metal nanoclusters with customized photophysical properties . In fact, up to now, controlling the photophysical nature of optical materials, i.e., yielding either fluorescence or phosphorescence, still remains a substantial challenge .…”