Perovskite nanoplatelets (NPls) hold promise for light-emitting applications, having achieved photoluminescence quantum efficiencies approaching unity in the blue wavelength range, where other metal-halide perovskites have typically been ineffective. However, the external quantum efficiencies (EQEs) of blue-emitting NPl light-emitting diodes (LEDs) have only reached 0.12%. In this work, we show that NPl LEDs are primarily limited by a poor electronic interface between the emitter and hole-injector. We show that the NPls have remarkably deep ionization potentials (≥6.5 eV), leading to large barriers for hole injection, as well as substantial non-radiative decay at the NPl/hole-injector interface. We find that an effective way to reduce these...
Luminescence quenching by hole transport layers (HTLs) is one of the major issues in developing effi...
Efficiency roll-off is a major issue for most types of light-emitting diodes (LEDs), and its origins...
Solution-processed perovskite light-emitting diodes (LEDs) have attracted wide attention in the past...
Perovskite nanoplatelets (NPls) hold promise for light-emitting applications, having achieved photol...
Perovskite nanoplatelets (NPls) hold promise for light-emitting applications, having achieved photol...
Metal-halide perovskite light-emitting diodes (PeLEDs) have shown great advancement in green, red, a...
Electroluminescence in light-emitting devices relies on the encounter and radiative recombination of...
Bright and color-pure electroluminescent materials are of great commercial interest for advanced lig...
Electroluminescence in light-emitting devices relies on the encounter and radiative recombination of...
Metal halide perovskites have excellent optical and electrical properties and can be easily processe...
Quasi-two-dimensional (2D) perovskites have recently emerged as emitters in blue perovskite light-em...
Colloidal metal-halide perovskite quantum dots (QDs) with a dimension less than the exciton Bohr dia...
Colloidal metal-halide perovskite quantum dots (QDs) with a dimension less than the exciton Bohr dia...
Metal halide based perovskite light-emitting diodes (PeLEDs) are promising candidates for next gener...
Efficiency roll-off is a major issue for most types of light-emitting diodes (LEDs), and its origins...
Luminescence quenching by hole transport layers (HTLs) is one of the major issues in developing effi...
Efficiency roll-off is a major issue for most types of light-emitting diodes (LEDs), and its origins...
Solution-processed perovskite light-emitting diodes (LEDs) have attracted wide attention in the past...
Perovskite nanoplatelets (NPls) hold promise for light-emitting applications, having achieved photol...
Perovskite nanoplatelets (NPls) hold promise for light-emitting applications, having achieved photol...
Metal-halide perovskite light-emitting diodes (PeLEDs) have shown great advancement in green, red, a...
Electroluminescence in light-emitting devices relies on the encounter and radiative recombination of...
Bright and color-pure electroluminescent materials are of great commercial interest for advanced lig...
Electroluminescence in light-emitting devices relies on the encounter and radiative recombination of...
Metal halide perovskites have excellent optical and electrical properties and can be easily processe...
Quasi-two-dimensional (2D) perovskites have recently emerged as emitters in blue perovskite light-em...
Colloidal metal-halide perovskite quantum dots (QDs) with a dimension less than the exciton Bohr dia...
Colloidal metal-halide perovskite quantum dots (QDs) with a dimension less than the exciton Bohr dia...
Metal halide based perovskite light-emitting diodes (PeLEDs) are promising candidates for next gener...
Efficiency roll-off is a major issue for most types of light-emitting diodes (LEDs), and its origins...
Luminescence quenching by hole transport layers (HTLs) is one of the major issues in developing effi...
Efficiency roll-off is a major issue for most types of light-emitting diodes (LEDs), and its origins...
Solution-processed perovskite light-emitting diodes (LEDs) have attracted wide attention in the past...