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View Full Version : Marriage Of Carbon Nanotubes, LEDs Shows Unexpectedly Bright Prospects


Neutron
Jun16-04, 03:56 AM
<jabberwocky><div class="vbmenu_control"><a href="jabberwocky:;" onClick="newWindow=window.open('','usenetCode','toolbar=no, location=no,scrollbars=yes,resizable=yes,status=no ,width=650,height=400'); newWindow.document.write('<HTML><HEAD><TITLE>Usenet ASCII</TITLE></HEAD><BODY topmargin=0 leftmargin=0 BGCOLOR=#F1F1F1><table border=0 width=625><td bgcolor=midnightblue><font color=#F1F1F1>This Usenet message\'s original ASCII form: </font></td></tr><tr><td width=449><br><br><font face=courier><UL><PRE>\nThere is an article published here http://www.physorg.com/news189.html\nwhich tells about research on carbon nanotubes implemented to LEDs:\n\nCarbon nanotubes, tiny cylinders whose extraordinary electrical and\nmechanical properties have spurred much excitement in recent years,\nmay play an unexpected role in replacing the century-old incandescent\nlight bulb.\nA team of physicists and engineers at the University of Florida has\nshown that thin sheets or "films" made of carbon nanotubes are\nremarkably effective transmitters of electricity into light emitting\ndiodes, or LEDs. This appears to overcome one of several obstacles to\ninexpensive mass production of white LEDs, which are widely viewed as\nreplacement candidates for energy-hogging and shorter-lived\nincandescent and fluorescent bulbs in offices and homes today...\n\n\nWhat I couldn\'t understand is why this metal to carbon nanotubes film\nreplacement will make white LEDs production cheaper. They say, the\nresistance drops 3 times, then power consumption should be 9 times\nless.\nThat great, but still I guess nanotubes are more expensive to deposit\nthere (and material too) than conventional metal.\n</UL></PRE></font></td></tr></table></BODY><HTML>');"> <IMG SRC=/images/buttons/ip.gif BORDER=0 ALIGN=CENTER ALT="View this Usenet post in original ASCII form">&nbsp;&nbsp;View this Usenet post in original ASCII form </a></div><P></jabberwocky>There is an article published here http://www.physorg.com/news189.html
which tells about research on carbon nanotubes implemented to LEDs:

Carbon nanotubes, tiny cylinders whose extraordinary electrical and
mechanical properties have spurred much excitement in recent years,
may play an unexpected role in replacing the century-old incandescent
light bulb.
A team of physicists and engineers at the University of Florida has
shown that thin sheets or "films" made of carbon nanotubes are
remarkably effective transmitters of electricity into light emitting
diodes, or LEDs. This appears to overcome one of several obstacles to
inexpensive mass production of white LEDs, which are widely viewed as
replacement candidates for energy-hogging and shorter-lived
incandescent and fluorescent bulbs in offices and homes today...


What I couldn't understand is why this metal to carbon nanotubes film
replacement will make white LEDs production cheaper. They say, the
resistance drops 3 times, then power consumption should be 9 times
less.
That great, but still I guess nanotubes are more expensive to deposit
there (and material too) than conventional metal.