One of the challenges for modern optoelectronics is to find versatile, easily adaptable components for novel laser-based technologies. A very attractive perylene-derivative chromophore in different organic matrices for high-performance light amplification is discussed and outlined. Our approach demonstrates the outstandingly compatible laser dye and a viable strategy to provide an effective optical gain for stimulated emission enhancement. Through structural control, we produce simple optical devices embedded in organic matrices, such as poly(methyl methacrylate), nematic liquid crystalline (NLC) mixture, and a hybrid emulsion system (poly(vinyl alcohol) PVA + NLC mesophase). Importantly, we investigate and compare the spectroscopy of differently constructed organic systems in terms of stimulated-emission thresholds and light amplification process efficiency. Moreover, we report the effects of tunability for LC cells by an applied external electric field stimulus. Future directions of laser systems are outlined with an emphasis on the role of the perylene derivative. The studies meet current challenges in the field of modern organic technologies dedicated to various optoelectronic systems, including touch screens, displays, and Li-Fi networks.

Research is underway to find organic dyes with high photoluminescence quantum yield (QY) and having compatibility with liquid crystals (LCs) that would be suitable for application in LC systems such as light sources, light converters and sensors. An attempt was made to obtain a highly efficient photoluminescent compound in a class of diketofurofuran (DFF) dyes. The new DFF dye has been synthesized and compared with an analogous diketopyrrolopyrrole (DPP) one with LC properties. The synthesis, crystal structure, and thermal and luminescent properties of the DFF dye as well as characterization of the compound incorporated in liquid crystalline thermofluorochromic and light amplification systems are reported for the first time. It was found that the QY of the studied DFF strongly depends on the matrices in which it was dispersed, reaching a value equal to or greater than 95% in liquid and LC matrices, which is reported for the first time in a DFF class of dyes. Switching of luminescence efficiency by temperature was performed for selected dye-doped thermotropic LC systems. A significant and reversible change of emission intensity and colour upon melting/crystallization below 100 °C was observed. DFF and DPP dyes incorporated into a selected thermotropic LC host were compared with five commercial laser dyes in terms of their performance as thermofluorochromic indicators. Very high contrast between the emission efficiency in nematic and crystal phases and relatively high change of the emission colour make the DFF dye under study one of the best among the studied dyes. This change was attributed to the emerging red-shifted absorption band in the crystalline state and a low Stokes shift. The difference in solubility of the studied DFF and N-methyl substituted DPP dyes, tested in two nematic LC hosts, was attributed to the higher tendency for self-aggregation of the DFF molecules. An Amplified Spontaneous Emission (ASE) signal in cholesteric LC cells with a comparable threshold was found for the studied DFF and DPP dyes.

New BODIPY derivatives exhibit multifunctional photonic behavior, including nonlinear optics and stimulated emission, with compatibility in diverse matrices and OLED perspectives for integrated optoelectronics.