Author: BL

A light emitting diode (LED) is any substance that emits light when a current passes through it  through it. Blue LEDs were quickly followed by yellow LEDs.  While LEDs can be obtained by combining blue and yellow LEDs using the complement color system.   Unfortunately,  glitches in color rendering result in the "white LED" light appearing… Continue reading Dy2O3 and white LEDs

Traditional rare earth iron boron permanent magnets have the disadvantage of Low coercivity, i.e. they tend to become demagnetized  in an externally applied magnetic field. Li and coworkers arc melted an industrial rare earth (RE) alloy with abundant La and Ce (RE100 = La30.6Ce50.2Pr6.4Nd12.8, ) with iron (99.9 wt.%), and iron-boron alloy (99.5 wt.%).  The nominal  composition of the… Continue reading Dy2O3, making permanent magnets more permanent

Dy2O3 nanoparticle nano-magnets A previous study has explored the use of   dextran coated Dy2O3  nanoparticles as an MRI contrast agent (Norek 2008).  In another study, glucuronic acid was used to coat composite nanoparticles of Gd2O3 and Dy2O3  that served as a dual T1 and T2 relaxation agents (Tegafaw 2015). Dy(III) loaded tobacco mosaic virus nanomagnets T2… Continue reading Dysprosium nano-magnets

Argyrodite, as defined by Wikipedia, is a silver germanium sulfide. The quest for all solid state batteries has led to an argyrodite definition of Li6PS5X (X = Cl, Br, I). One reason Hanghofer and coauthors (2019) cite for this redefinition is the expense of Ge. These authors compared chloride, bromide, and iodide salts of this… Continue reading Argyrodite