ISSN:
1662-9752
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Amorphous diamond can emit electrons in vacuum when applied with an electrical fieldof only a few volts per micron. It is also extremely thermionic so the emitted current can increasemillions times when heated to only a few hundreds degrees centigrade. As a result, amorphousdiamond can be a thermal generator or a solar cell. The energy conversion efficiency can have muchhigher (e.g. 50%) than that (e.g. 15%) of silicon based solar cells that can absorb only a narrowspectrum of sun light. As a solar cell, amorphous diamond has another advantage that its radiationhardness is the highest of all materials, hence, its thermal electricity efficiency will not attenuate asdoes the solar cell based on photo electric semiconductorls.An immediate application of amorphous diamond is to coat it on electron emitting electrodes,such as that used as cold cathode fluorescence lamps (CCFL) that illuminate liquid crystal displays(LCD) for fornote books and television sets. Amorphous diamond can dramatically reduce theturn-on voltage to lit CCFL so the lamp life can be greatly extended. Moreover, the electricalcurrent can be increased to enhance the brightness of the light
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/14/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.534-536.1429.pdf
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