Dermatologists explain the science behind wildly popular treatments like red light therapy, which is now available at home—for a steep price. Full-face LED masks like this one can cost up to several ...

Figure 1: Optical microphotograph of the Au/polymer admixture/Au LEC (surface cell configuration) during operation at 4-V bias. The formation of a p–i–n light-emitting junction was proposed for ...

The comments by Pei and Heeger on our paper published in Nature Materials 1 call for a clarification of the mechanism of the operation of light-emitting electrochemical cells (LEECs). The simplest ...

Will Kenton is an expert on the economy and investing laws and regulations. He previously held senior editorial roles at Investopedia and Kapitall Wire and holds a MA in Economics from The New School ...

Brian Beers is a digital editor, writer, Emmy-nominated producer, and content expert with 15+ years of experience writing about corporate finance & accounting, fundamental analysis, and investing.

We independently review everything we recommend. We may get paid to link out to retailer sites, and when you buy through our links, we may earn a commission. Learn more› By Nancy Redd Shifts in the ...