Phosphor Analyzer checks plasma display panels.
Press Release Summary:
PDP Analyzer characterizes phosphors used in plasma display panels in terms of emission wavelength and lifetime. It delivers vacuum UV excitation wavelengths at 146 nm, 173 nm and more. Excitation wavelengths are focused to sample phosphors. Phosphor emission is collected and delivered to spectrometer for analysis of phosphor emission. In single channel mode, phosphor samples may be analyzed for lifetime in nanosecond time scales.Original Press Release:
Phosphor Analyzer with Deep and Vacuum UV Excitation
Plasma Display Panels consist of thousands of cells - each one a pixel (red, green or blue) - required for the display. These cells contain an inert gas, a phosphor layer, and electrodes required to activate it. Passing current through the cell causes the gas to heat up and change to a plasma state. A by-product is the emission of ultraviolet radiation that excites the phosphor layer within the cell causing it to glow.
Phosphors used in Plasma Display Panel (PDP) technology require accurate characterization - in terms of emission wavelength and lifetime.
The McPherson PDP Analyzer delivers Vacuum UV excitation wavelengths at 146 nm, 173 nm and more. The excitation wavelengths are focused to sample phosphors. The phosphor samples may be exchanged while maintaining the vacuum required for high-energy excitation. Phosphor emission is collected and delivered to a McPherson spectrometer for analysis. The spectrometer is equipped with a CCD for quick determination of the phosphor emission wavelength (color.) In single channel mode the phosphor samples may be analyzed in more detail, especially regarding lifetime (to nano-second time scales.)
McPherson systems may additionally be equipped with tunable monochromatic light sources for excitation from 115 to 350 nm and high gain photomultipliers for scanning spectra. Complete, ready to use systems are available.
