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SUMMARY:Solar energy conversion with nanoheterostructures
DTSTART:20130926T163000
DTEND:20130926T173000
DTSTAMP:20260406T214648Z
UID:23fc1d33dd3a5a7c998acb50315889192a4b2b4120bee24f81db2753
CATEGORIES:Conferences - Seminars
DESCRIPTION:Prof. Juan Bisquert\nProfessor of Applied Physics\nPhotovoltai
 cs and Optoelectronic Devices Group\,\nDepartament de Física\,\nUniversit
 at Jaume I\, 12071 Castelló\, Spainhttp://www.elp.uji.es/jb.php\nResearch
  in solar energy conversion employing nanoheterostructures covers a wide v
 ariety of material systems: dye sensitized solar cells\, organic solar cel
 ls\, quantum dot solar cells\, solar fuel devices. We discuss the basic st
 ructure of solar energy converters\, consisting on an absorber material wi
 th selective contacts that also perform specific charge transfer or cataly
 tic reaction in order to convert carriers to electricity or fuel. The idea
 s of Fermi level splitting\, high quantum efficiency\, and fundamental phy
 sical efficiencies are reviewed. Then we address the mechanisms of the men
 tioned system\, showing general features as well as specific properties th
 at have been discovered using impedance spectroscopy methods and related t
 echniques. Experimental information is derived from recombination resistan
 ce and capacitance of the cells\, which provides key insights about the se
 paration of energetic effects\, and kinetics of recombination. In solution
  processed materials there is a strong convolution of the disorder in the 
 energy axis with the charge transfer probability. Finally we discuss some 
 recently discovered mechanism of quantum dot layer solar cells and perovsk
 ite solar cells.
LOCATION:CH G1 495 https://plan.epfl.ch/?room==CH%20G1%20495
STATUS:CONFIRMED
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