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SUMMARY:Photo-Electrochemical Water Splitting with III-V Semiconductors: R
 esearch Challenges at the Cell and Module Level
DTSTART:20180301T111500
DTEND:20180301T121500
DTSTAMP:20260429T150855Z
UID:71ba4d1c705b03a092a34e2703026f5abbfe20eb2cda007d4b4d6eaa
CATEGORIES:Conferences - Seminars
DESCRIPTION:Dr. Todd Deutsch\, NREL\, Golden\, Colorado Bio: Todd Deutsch 
 is a Senior Scientist in the Chemistry & Nanoscience Center at the Nationa
 l Renewable Energy Laboratory(NREL) in Golden\, Colorado.  He has been st
 udying photoelectrochemical water splitting since interning in Dr. John A.
  Turner’s lab at NREL in 1999 and 2000. He performed his graduate studie
 s on III-V-nitride semiconductor water-splitting systems under the joint g
 uidance of Dr. Turner and Prof. Carl A. Koval in the Chemistry department 
 at the University of Colorado-Boulder. Todd officially joined NREL as a po
 stdoctoral scholar in August 2006 and became a staff scientist two years l
 ater.  He works on identifying and characterizing appropriate materials f
 or generating hydrogen fuel from water using sunlight as the only energy i
 nput. Recently\, his work has focused on inverted metamorphic multijunctio
 n III-V semiconductors and corrosion remediation strategies for high-effic
 iency water-splitting photoelectrodes.\nAbstract:\nIn order to economicall
 y generate renewable hydrogen fuel from solar energy using semiconductor-b
 ased devices\, the U.S. Department of Energy Fuel Cell Technologies Office
  has established technical targets of over 20% solar-to-hydrogen (STH) eff
 iciency with several thousand hours of stability under operating condition
 s. First\, I will describe our approach to engineering the solid-state str
 ucture and surface of multi-junction III-V semiconductors to achieve STH e
 fficiencies approaching this aggressive 20% target.  In the second part o
 f this talk\, I will identify the challenges and elaborate on solutions fo
 r successfully scaling the absorber area of III-V cells from ~0.15 cm2 up 
 to 16 cm2 and incorporating them in a photoreactor module capable of gener
 ating 3 standard liters of hydrogen in 8 hours under natural sunlight. \n
  
LOCATION:MED 2 1522 https://plan.epfl.ch/?room=MED21522
STATUS:CONFIRMED
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