Priming InP-Based Quantum Dots for On-Chip LED Color Conversion

InP-based quantum dots have emerged as an alternative for CdSe-based materials for luminescent color conversion in the visible. At the same time, color-conversion approaches are shifting from remote phosphor on-chip configurations, which implies exposure to higher light intensity and increased operation temperature. In this contribution, we discuss recent progress in the synthesis of InP-based core/shell quantum dots, reaching near unity photoluminescence quantum yield across the visible spectrum and the formation of monochromatic LEDs by means of on-chip color conversion through InP-based quantum dots. In addition, we address in detail the properties of the core/shell interface and the termination of the quantum dot outer surface that made this result possible and discuss different mechanisms of failure - leading to a deterioration of the color conversion efficiency - from an atomistic perspective.