Materials with white-light emitting (WLE) have attracted enormous attention in recent time due to its widespread applications in displays and lightings. Luminescent Metal-organic frameworks (L-MOFs) have discovered to deliver unlimited opportunities for constructing single-component WLE. WLE from intrinsic non-lanthanide MOFs is somewhat rare. Lead(II) compounds have exhibited mark of achievement in applications like photovoltaic conversion, fluorescent sensors, organic light-emitting diodes, and electroluminescence, despite their toxicity. Further, Pb(II) has the ability to form extraordinary and unique topologies of numerous framework and structures due to its flexible geometries with wide coordination number (2 to 10) through large ionic radius (1.20 Å). We developed a series of novel and simple, Pb(II) MOFs with the fascinating inorganic topologies using cheap linkers. All the compounds exhibit single-component white-light solid-state photoluminescence at room temperature. Our structural, spectroscopic and computational studies show that the metal-centered transitions along with the electron-withdrawing performances of ligands play a significant role in the single-component white-light emission (WLE). Single-component white-light emitting characteristics are not many for the Pb(II) based MOFs, therefore, this study will open new perspectives for developing single-phase white-light emitting materials.

Metal-organic frameworks with single-component white-light-emission

2019 Spring National Meeting

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