Instead of building a light-emitting pixel next to transistors, Rinzler wants to build low-power organic transistors that emit light themselves.
There are, of course, good reasons to press ahead with OLED technology the fact that they don't require a light source (the panels emit light themselves) could ultimately make them less costly, in the long run.
The three new Nobelists overcame that limit using fluorescence, getting the objects under the microscope to emit light themselves to reveal their details.
When a tissue sample is illuminated with light of specific wavelengths, certain molecules called fluorophores (including amino acids, vitamins and lipids) absorb the light's energy and subsequently emit light themselves, this time of lower energy, i.e. longer wavelengths.
These reactions are already part of the cellular metabolism leading to singlet oxygen and excited carbonyl groups (Kobayashi and Inaba 2000; Chang 2008) that emits light themselves or further trigger chemical reactions involving secondary excited species.
* Based on the number of inhabitants of 1998; ** Belgian ministry of Economic affairs and Institute for Social and Economic Geography, Catholic University of Leuven; *** Emissions of pollutants reported by the emitting companies themselves to the Flemish Environmental Protection Agency.
While optical instruments can detect the dust when it obscures more distant objects or when it is illuminated by very nearby stars, infrared telescopes are able to register the long-wavelength radiation that the cool dust clouds themselves emit.
If only we could directly image these objects that emit no light themselves, right?
Although the black holes themselves emit no radiation, material spiraling into them from orbiting stars gets heated to such extreme temperatures that it emits x-rays (inset).
Plug-ins use about a third of the fuel that a standard hybrid does, which means that the cars themselves emit less carbon dioxide and other pollutants.
