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SUMMARY:The role of hydrogen in semiconductors and materials for photovolt
 aics
DTSTART:20090630T110000
DTSTAMP:20260916T203806Z
UID:c411de913054ea908ef6b1434f671f7d9e1c3cacc640420f2820fa71
CATEGORIES:Conferences - Seminars
DESCRIPTION:Chris Van der Walle\, University of California\, Santa Barbara
  (US)\nABSTRACT\nHydrogen strongly affects the properties of electronic ma
 terials\, and careful control of hydrogen during growth\, processing\, and
  device operation is needed to tailor the electrical behavior.  First-prin
 ciples calculations have allowed us to investigate the many facets of hydr
 ogen's interactions with materials.  Systematic studies for a wide range o
 f hosts have revealed general rules governing the behavior of hydrogen\, b
 ut also produced intriguing surprises.  In amorphous silicon\, hydrogen is
  known to passivate defects\, but also to be involved in defect generation
 .  I will address a number of topics that are relevant for hydrogen-relate
 d defect energetics and dynamics in silicon and amorphous silicon.  
LOCATION:IMT\, Breguet 2\, Neuchâtel / Salle MT2 
STATUS:CONFIRMED
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