Upon modifying cadmium-free InP quantum dot emitting layer by passivation with 1,4-butanediamine and zinc iodide, we successfully decrease electron mobility and enhances the hole transport in the InP QLED. As a result of optimizing the electrons and hole injection, it leads to green 545 nm InP QLED with a maximum quantum efficiency (EQE) of 16.3% and a current efficiency of 57.5 cd/A.

Amphiboles are amazing minerals existing in a wide range of temperature and pressure and accommodating a diversity of elements in their structure. These compounds can be potential functional materials because they exhibit strongly anisotropic properties stemming from their structural anisotropy.