To achieve high reliable GaN‐based LEDs with a controllable lifetime is one of the key
issues for applications. In this review, an overview of reliability studies for different GaN …

Investigation of changes of operation and noise characteristics during aging process of light-
emitting diodes (LEDs) has been carried out. Several groups of different design (different …

A new method has been developed for assessment of the onset of degradation in solid state
luminaires to classify failure mechanisms by using metrics beyond lumen degradation that …

The effect of AlGaN interlayer in quantum barrier on the electroluminescence characteristics
of GaN-based green light emitting diodes (LEDs) grown on silicon substrate was …

We have measured five major mechanisms that govern light-emitting diode (LED)
degradation, calculated respective percentages, and identified the most influential …

GaN based high brightness white LEDs have been developed as the future of lightening
system. Due to their efficiency and exceptionally long lifetime they are seen as a permanent …

Current and temperature aging have been conducted on flip chip high power light emitting
diodes (LEDs) with Al-Ni-Ti-Au n-contacts. Electrical and optical characteristics have been …

This paper reviews the main characteristics of state-of-the art high-brightness light-emitting
diodes (LEDs), and the mechanisms responsible for the degradation of these devices. After …

We present a systematic analysis of the forward tunnelling current in GaN-based blue light-
emitting diodes by using the current-voltage (IV) measurements from 100 K to 300 K. The …

Cleanup from a hazardous chemical release can result in large volumes of water containing
hazardous materials, such as organophosphates. Unfortunately, this water cannot be treated …