Single-phase phosphors that emit broadband white-light are needed for white-light-emitting diodes (wLEDs) to reach their full potential. However, it is challenging achieve broad emission from single-phase materials. Consequently, polycrystalline inorganic bulk compounds sans doping rare. We report on a well-known garnet compound, i.e., yttrium iron (YIG), without activator-ion doping. Upon near...

Artificial lighting currently consumes approximately one-fifth of global electricity production. Organic emitters with white persistent RTP have potential for applications in energy-efficient technologies, due to their ability harvest both singlet and triplet excitons. Compared heavy metal phosphorescent materials, they significant advantages cost, processability, reduced toxicity. Phosphoresce...

OBJECTIVES Few studies have identified the distinctive aspects of singlehood that are distressing to older adults. The objectives of our study were: (a) to examine whether divorced, widowed, and never-married older adults differed in their experiences of single strain, an indicator of chronic stressors associated with being unmarried; and (b) to assess whether the marital status differences we ...