Open AccessFull-color illumination that needs no electric power
Author(s) -
Mitsunori Saito,
Naoki Adachi,
Hiroyasu Kondo
Publication year - 2007
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.15.001621
Subject(s) - phosphorescence , phosphor , brightness , afterglow , materials science , optics , full color , optoelectronics , red color , methyl red , doping , red light , fluorescence , physics , chemistry , nuclear chemistry , botany , gamma ray burst , astronomy , biology
Red, green, and blue phosphorescent resins were developed to realize full-color illuminators that shine without the need for electric power. Red phosphorescence, which used to be weak with conventional red phosphors, was enhanced notably with dye-doped resins in which green or blue phosphors were dispersed uniformly; i.e., brightness increased by seven times and afterglow duration extended by two times. Full-color phosphorescence from violet to red was attained by selecting suitable mixing ratios of the phosphors and dyes.