White light generation embracing pyrene and rhodamine-based nano-group of uniform materials based on organic salts (nano-GUMBOS)

Abstract

In response to the growing demand for photoluminescent (PL) systems with versatile emission color tuning capabilities, particularly in the realm of contemporary versatile optoelectronic devices, we have developed a straightforward and environmentally friendly PL system. This system is designed to effectively tune its photoluminescence color response to various stimuli, including the system’s composition and excitation wavelength. Notably, our PL system achieves an almost pure white light emission (WLE), which has significant value in diverse applications. To create this interesting system, we combine two nano-Group of Uniform Materials Based on Organic Salts (nano-GUMBOS), namely nPBIL and nRBS, within an aqueous mixture. By precisely adjusting the composition of these nano-GUMBOS, we successfully achieved a near-pure WLE with a Commission Internationale d’Eclairage (CIE) 1931 color profile of (0.31, 0.31) when excited at a wavelength of 365 nm. This achievement demonstrates the system’s capability to produce high-quality WLE, meeting the requirements for efficient and aesthetically pleasing illumination which is significant to various optoelectronic applications. The straightforward synthesis process and environmentally friendly nature of our PL system make it an attractive choice for various lighting and display applications. The adaptability and tunability of the emission color add further versatility to its potential uses, providing opportunities for state-of-the-art solutions in the field of optoelectronic technology.