Catalysts are substances that increase the reaction rate of a chemical reaction without being consumed in the process. 392-83-6, Name is 2-Bromobenzotrifluoride, SMILES is FC(F)(F)C1=CC=CC=C1Br, belongs to bromides-buliding-blocks compound. In a document, author is Roh, Kwangdong, introduce the new discover, SDS of cas: 392-83-6.
Widely Tunable, Room Temperature, Single-Mode Lasing Operation from Mixed-Halide Perovskite Thin Films
Solution-processed organic inorganic hybrid perovskites have recently emerged as promising low-cost materials for optoelectronic applications. However, exposure to light or applied bias causes phase separation of mixed-halide perovskites into iodide-rich domains, resulting in the shift of the bandgap energy toward the infrared for light-emitting devices. Proper selection of self-assembled and bulky organoammonium halide additives, 4-fluorobenzylammonium iodide bromide, FPMAI(1-x)Br(x), to the mixed-halide perovskite system, CsxMA(1-x)Pb[I1-xBrx](3) (0 <= x <= 1), exhibits stronger emission and enables stable and low threshold amplified spontaneous emission, which can be tuned over a wide spectral range. Finally, optically pumped surface-emitting distributed feedback lasers operating in a wide spectral range at room temperature are demonstrated for the first time. The laser emission wavelength can be tuned from green to near-infrared by varying the halide stoichiometry in the mixed-halide perovskites. Ultrasmooth mixed-halide perovskites on fused quartz gratings achieve spatially coherent single-mode laser emission with a pump threshold of 4 mu J/cm(2) and less than 0.65 nm full-width at half maximum. The laser device lifetime lasts for up to 42 h (similar to 10(6) laser pulses) under sustained excitation. This work represents a proof-of-concept laser device for practical use in various applications. The proportionality constant is the rate constant for the particular unimolecular reaction. the reaction rate is directly proportional to the concentration of the reactant. I hope my blog about 392-83-6 is helpful to your research. SDS of cas: 392-83-6.