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<p class=MsoNormal>Vabim vas na 8. predavanje iz sklopa "Kolokviji na
IJS" v letu 2009/10, ki bo <strong><span style='font-family:"Calibri","sans-serif";
color:red'>v sredo, 10. marca 2010, ob 13. uri </span></strong><span
style='color:red'>v Veliki predavalnici Instituta »Jožef Stefan«</span>
na Jamovi cesti 39 v Ljubljani. Napovednik predavanja najdete tudi na naslovu <a
href="http://www.ijs.si/ijsw/Koledar_prireditev">http://www.ijs.si/ijsw/Koledar_prireditev</a>,
posnetke preteklih predavanj<span style='color:blue'> </span>pa na <a
href="http://videolectures.net/kolokviji_ijs">http://videolectures.net/kolokviji_ijs</a>.
<o:p></o:p></p>
<p class=MsoNormal>~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~<br>
<br>
<b><o:p></o:p></b></p>
<p class=MsoNormal><b>Prof. dr. Andrew Bleloch<o:p></o:p></b></p>
<p class=MsoNormal><i>University of Liverpool and SuperSTEM Laboratory </i><i><o:p></o:p></i></p>
<p class=MsoNormal><i><br>
</i><b><span style='font-size:14.0pt'>Razumevanje materialov na atomarnem
nivoju: Novo obdobje presevne elektronske mikroskopije z uporabo korektorjev
sferične aberacije leč (Cs)<o:p></o:p></span></b></p>
<p class=MsoNormal><b><span style='font-size:14.0pt'><o:p> </o:p></span></b></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;margin-bottom:12.0pt;
text-align:justify;text-justify:inter-ideograph'>Mikroskop je eno izmed
najstarejših orodij znanstvenikov za povečanje dosega naših čutil. Ker je svet
okoli nas sestavljen iz atomov, nam mikroskopi, ki lahko pokažejo, kateri atomi
so na nekem mestu, podajajo celovit vpogled v ta svet. Zaradi slabe kvalitete
elektromagnetnih leč pa presevni elektronski mikroskopi do sredine devetdesetih
let niso mogli doseči ustrezne ločljivosti. S korekcijo sferične aberacije leč
Cs (danes tudi s korekcijo kromatične aberacije Cc) pa se je v zadnjih 15 letih
ločljivost elektronskih mikroskopov povečala za bistveni dvakratni faktor, kar
že omogoča rutinsko strukturno in kemijsko karakterizacijo materialov na
atomskem nivoju. SuperSTEM Laboratory je bila prva nacionalna institucija v
Veliki Britaniji, ki je lahko ponudila znanstveni srenji preiskave materialov z
elektronskimi mikroskopi z uporabo Cs-korektorjev. V predavanju bodo
predstavljeni izbrani primeri uporabe elektronske Cs-mikroskopije (posnetki,
spektroskopije) pri preučevanju in reševanju problemov v materialih od
toksičnosti nanodelcev na osnovi ogljika prek nanodelcev za katalizo do
strukturne in kemijske karakterizacije napak v keramičnih perovskitih in mej v
polprevodnikih.<span style='font-size:12.0pt'><o:p></o:p></span></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;margin-bottom:12.0pt;
text-align:justify;text-justify:inter-ideograph'>Predavanje bo v angleškem
jeziku.<o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;margin-bottom:12.0pt'><strong><span
style='font-family:"Calibri","sans-serif";color:red'>Lepo vabljeni!</span></strong><strong><span
style='font-family:"Calibri","sans-serif";font-weight:normal'><o:p></o:p></span></strong></p>
<p class=MsoNormal align=center style='text-align:center'><b><span
style='font-size:26.0pt'>***<o:p></o:p></span></b></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal style='text-align:justify;text-justify:inter-ideograph'><span
lang=EN-US>We would like to invite you to 8<sup>th</sup> lecture of the
"Kolokvij na IJS" in the school year 2009/10. The lecture will be
held <b>on Wednesday, March 10, 2010 at 1 pm</b> at <b>JSI main lecture hall</b>,
Jamova 39, Ljubljana. The abstract of the lecture can be found on website: </span><span
lang=EN-US style='font-size:10.0pt'><a
href="http://www.ijs.si/ijsw/Koledar_prireditev"><span style='font-size:11.0pt'>http://www.ijs.si/ijsw/Koledar_prireditev</span></a></span><span
lang=EN-US>, the previous recorded lectures can be found on website: </span><span
lang=EN-US style='font-size:10.0pt'><a
href="http://videolectures.net/kolokviji_ijs"><span style='font-size:11.0pt'>http://videolectures.net/kolokviji_ijs</span></a></span><span
lang=EN-US>.</span><span lang=EN-US style='font-size:10.0pt'> </span><span
lang=EN-US><o:p></o:p></span></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span
lang=EN-US>********************************************<br>
<br>
<o:p></o:p></span></p>
<p class=MsoNormal><b>Prof. dr. Andrew Bleloch<o:p></o:p></b></p>
<p class=MsoNormal><i>University of Liverpool and SuperSTEM Laboratory </i><i><o:p></o:p></i></p>
<p class=MsoNormal><i><o:p> </o:p></i></p>
<p class=MsoNormal><b><span style='font-size:16.0pt'>Understanding materials
atom by atom: a new era of aberration corrected electron microscopy</span></b><b><span
lang=EN-US style='font-size:16.0pt'><o:p></o:p></span></b></p>
<p class=MsoNormal style='text-align:justify;text-justify:inter-ideograph'><span
lang=EN-US style='font-size:12.0pt'><o:p> </o:p></span></p>
<p class=MsoNormal style='text-align:justify;text-justify:inter-ideograph'><span
lang=EN-US>The microscope is one of the oldest tools used by scientists to
extend the reach of their senses. Since the world around us, both natural and
synthetic, is made up of atoms, a microscope capable of showing us which atoms
are where, arguably, gives a complete characterisation of that world. The
electron microscope was, until the middle of the 1990’s, hampered by the
poor quality of charged particle lenses. 15 years of spherical (and latterly
chromatic) aberration correction has since given a crucial factor-of-two
improvement in resolution so that routine atom by atom characterisation of
materials is now possible. The SuperSTEM Laboratory in the UK was the first
national facility to offer aberration corrected analysis of materials to the UK
materials community. Case studies of the application of aberration technology,
using both imaging and spectrometry, to a wide variety of materials problems
ranging from the toxicity of nano-scale carbon materials through catalyst
nano-particles to defects in perovskites and semiconductor interfaces will be
presented.<o:p></o:p></span></p>
<p class=MsoNormal><b><span lang=EN-US style='font-size:14.0pt'><o:p> </o:p></span></b></p>
<p class=MsoNormal><b><span lang=EN-US style='font-size:14.0pt'>We look forward
to meeting you at the “Kolokvij na IJS”!<o:p></o:p></span></b></p>
<p class=MsoNormal><span lang=EN-US style='font-size:12.0pt'><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p>
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