Not quite, but free articles available on the subject of efficient blue light-emitting diodes!
IOP Publishing congratulates Isamu Akasaki, Hiroshi Amano and Shuji Nakamura on becoming the latest Nobel Prize for Physics laureates. The scientists were awarded for inventing blue LEDs which have enabled bright and energy-saving white light sources.
In recognition of their achievement, we have put together a collection of papers that are free to read until the end of 2015.You'll find this collection online here http://iopscience.iop.org/page/Nobel
Festive photo by slworking2