Publications by authors named "Abdul Shabir"
Article Synopsis
- Quantum Dots (QDs) are being studied in a hybrid white light LED setup that combines phosphor with a blue LED chip, specifically using Zn doped CdS QDs with a ZnS shell and green light phosphor.
- The study observes a three-stage degradation process of the LEDs: an initial enhancement in light intensity, a rapid decrease in intensity, and finally a slower decline until the end of testing.
- Research indicates that the degradation is due to the oxidation of sulfur vacancies in the CdS QDs caused by oxygen from the environment, linked to imperfections in the ZnS coating, leading to a transformation of CdS into CdO and ultimately into CdSO.
