Luminescent properties of benzothiazole derivatives and their application in white light emission

Abstract

A saturated white-light emission was obtained by dispersing three benzothiazole analogues into a solid PMMA matrix. This skillfully avoids the detrimental energy transfer between doped dyes providing a simple approach for fabrication of white-light emitting devices.

Photophysical studies on lanthanide(iii) chelates conjugated to Pittsburgh compound B as luminescent probes targeted to Aβ amyloid aggregates

“…This causes a larger energy increase of the ground singlet state (S0) relative to the first excited state S1 of the chromophore in L2 than in L1, leading to a red-shift of the absorption band due to the decrease of the optical band gap, as observed for other substituted benzothiazoles. 72 Both ligands have high molar absorption coefficients, abs = 40500 ± 3300 M -1 cm -1 for L1 and 28400 ± 350 M -1 cm -1 for L2 (Table 1). These absorption parameters are not changed in the TbL1 and TbL2 complexes, showing that these parameters of the PiB chromophore are not influenced by the Ln 3+ complex moiety.…”

Ru(II)-Catalyzed Regioselective C–N Bond Formation on Benzothiazoles Employing Acyl Azide as an Amidating Agent

“…They possess vivid biological activities such as anti-tumor ( I ), anti-hepatitis C, anti-Alzheimer, anti-inflammatory, analgesic, and anti-oxidant ( II ) . The adept fluorescent nature of benzothiazole-based molecules represents a class of heterocycles with efficient white light emission and chemosensor ( III and IV ) ability (Figure ). In recent times, white organic light-emitting diodes (WOLEDs) have drawn considerable attention with prominent application in the field of flat panel displays, lighting equipment, and so on .…”

Towards NIR‐Active Hydroxybenzazole (HBX)‐Based ESIPT Motifs: A Recent Research Trend

“…ESIPT is photo‐induced tautomerization process in which the photoexcitation of ground state enol form yields an excited keto form (see Figure ). ESIPT molecules constitute an area of the very prolific field of research as they give large Stokes shifts and change in fluorescence due to keto‐enol tautomer . Due to unique photophysical properties, the ESIPT molecules have a wide range of application in sensing, laser dyes, photostabilizers, fluorescent probes in biology, and light emitting materials for the electroluminescent device.…”