Modulation of Trichromatic Emission Centers in Organic–Inorganic Hybrids for Optoelectronic Applications

• A novel chiral (NEA)₂MnBr₄ was obtained by introducing three independently tunable primary-color emissive centers. • Comparable emission intensities among the three primary colors were achieved by optimizing components and introducing chirality. • By means of dual control of excitation photon energy and temperature, the sample can emit at least seven different colors, including standard white light emission at (0.33, 0.33). • The material exhibits photoluminescence quantum yields up to 96% and shows promise for anti-counterfeiting, LEDs, X-ray imaging, latent fingerprint detection, and humidity sensing.