Jun 16, 2006
True blue electric blue
Wide angle X-ray scattering, photoluminescence, polarizing optical microscopy, differential calorimetry, and dielectric spectroscopy have been used to study the optical properties of a range of blue-light emitting organic compounds. The mechanism of the self-assembly of these oligoindenofluorenes up to the polymer, their thermal properties, and associated molecular dynamics also reveal important clues about their behaviour and potential for applications in organic light-emitting diodes (OLEDS) and other devices.
Thanks Zoli. Do you have a link to Karasz’ pioneering work, so I can add it as a footnote here.
While this indeed covers an interesting new result in the field, I should mention that one of the earliest – and for a while most active – group dealing with blue LED polymer materials has been that of Prof. Karasz: . A number of novel molecules and them blends were discovered there, paving the way for developing LEDs capable of emitting light in the blue end of the spectrum!