Phosphor-converted white light-emitting diodes (pc-WLEDs) are energy efficient and
environmentally friendly light sources with a long lifetime, applicable in both display …

Heterometallic chalcogenides are no longer limited to only transition metals or main group
metal chalcogenides. Recent research has showed that combinations of lanthanides and …

Efficient broadband infrared (IR) light-emitting diodes (LEDs) are needed for emerging
applications that exploit near-IR spectroscopy, ranging from hand-held electronics to …

There are various routes of luminescence quenching such as multi-phonon relaxation from
excited states to lower energy states, energy migration to killer sites, and radiation less …

Energy level schemes are an essential tool for the description and interpretation of atomic
spectra. During the last 40 years, several empirical methods and relationships were devised …

In 1996, a new lighting device was proposed by Nichia Chemical Co., Japan, using a blue
InGaN LED chip coated with a yellow-emitting phosphor of yttrium aluminum garnet (Y 2.9 …

High reliability and wide color gamut light-emitting diodes (LEDs) that use composite
quantum dot films (CQDFs) protected by chip-scale package (CSP) structures are presented …

In order to determine the suitability of Eu 2+ doped CaS for phosphor-converted light
emitting diodes, photoluminescence, cathodoluminescence mapping, thermal quenching of …

Solid-state NMR on paramagnetically doped crystal structures gives information about the
spatial distribution of dopants in the host. Paramagnetic dopants may render NMR active …

Light and health is a topic of significant importance and requires fundamental studies of
human interactions with light. This paper presents a review of some of the on-going studies …