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SUMMARY:Special IMX/ISIC Colloquium - Semiconductor nanowire building bloc
 ks: from gate-all-around transistors\, nanolasers to photochemical diodes
DTSTART:20251119T161500
DTEND:20251119T171500
DTSTAMP:20260609T204544Z
UID:23a0ca0904dd45ac3fcbe5a99a9107da408e847b8acf3e51765b97cb
CATEGORIES:Conferences - Seminars
DESCRIPTION:Prof. Peidong Yang\, University of California\, Berkeley USA
 \nWires of different forms have been an integral part of human society for
  centuries. Electricity is delivered through power lines to every househol
 d\; information is routinely transmitted through optical fibers\, and brid
 ge-building requires mechanically robust cables. Over the past 30 years\, 
 scientists have developed a new process for creating nanoscopic wires\, wh
 ich are 1000 times thinner than human hairs\, enabling a new generation of
  computing\, integrated photonics\, and energy and biomedical technologies
 .  After several decades of research\, semiconductor nanowires with predi
 ctable and controlled electrical properties can be synthesized\, thus prov
 iding optoelectronically-tunable nanoscale building blocks for device asse
 mbly for the first time\, including nanoscopic lasers\, solar cells\, gate
 -all-around silicon nanowire transistors\, nanofluidic transistors\, intra
 cellular optical and electrical probes\,  thermoelectrics\, and (bio)phot
 ochemical diodes. Nanowires represent an important class of nanostructure 
 building blocks for photovoltaics and direct solar-to-fuel conversion due 
 to their high surface area\, tunable bandgap\, and efficient charge transp
 ort and collection. In this talk\, I will present a brief history of nanow
 ire research over the past 30 years and highlight the synthesis of nanowir
 es using well-defined chemical approaches. I will summarize the progress o
 f research in nanowire electronics\, photonics\, and thermoelectrics. In a
 ddition\, these semiconductor nanowires\, with their unique photoelectroch
 emical properties\, are then utilized for artificial photosynthesis based 
 on a (bio)photochemical diode system design\, where solar energy is conver
 ted and stored in chemical bonds through a solar-driven CO2 fixation proce
 ss.\n\nBio: Peidong Yang is a Chemistry professor\, S. K. and Angela Chan
  Distinguished Chair Professor in Energy at the University of California\,
  Berkeley. He is a senior faculty scientist at the Materials and Chemical 
 Sciences Division\, Lawrence Berkeley National Laboratory. He is a member 
 of both the National Academy of Sciences and the American Academy of Arts 
 and Sciences\, and a foreign member of the Chinese Academy of Sciences. He
  is a MacArthur “Genius” Fellow.\n\nProf. Yang is known particularly f
 or his work on semiconductor nanowires and their photonic\, electronics\, 
 and energy applications\, including nanolasers\, gate-all-around transisto
 rs\, and artificial photosynthesis. He is the director of the California R
 esearch Alliance by BASF and the Kavli Energy Nanoscience Institute at Ber
 keley.  He is an Executive Editor for the Journal of the American Chemica
 l Society.\n\nDr. Yang received his B.A. in Chemistry from the University 
 of Science and Technology in China in 1993. He then received his Ph.D. in 
 Chemistry from Harvard University in 1997\, and did his postdoctoral fello
 wship at the University of California\, Santa Barbara. Soon after\, he joi
 ned the faculty at the University of California\, Berkeley. He is the reci
 pient of Global Energy Prize\, MacArthur Fellowship\, E. O. Lawrence Award
 \, Alan T. Waterman Award\, ACS Nanoscience Award\, MRS Medal\, ACS Baekel
 and Medal\, Julius Springer Prize for Applied Physics\, Alfred P. Sloan re
 search fellowship\, the Arnold and Mabel Beckman Young Investigator Award\
 , National Science Foundation Young Investigator Award\, MRS Young Investi
 gator Award\, ACS Pure Chemistry Award.  He is the 2014 Thomas Reuters Ci
 tation Laureate for Physics.
LOCATION:MXF 1 https://plan.epfl.ch/?room==MXF%201 https://epfl.zoom.us/j/
 63820928660
STATUS:CONFIRMED
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