Transparently Wrap-Gated Semiconductor Nanowire Arrays For Studies Of Gate-Controlled Photoluminescence

Gustav Nylund, Kristian Storm, Henrik Torstensson, Jesper Wallentin, Magnus Borgström, Dan Hessman, Lars Samuelson

Forskningsoutput: Kapitel i bok/rapport/Conference proceedingKonferenspaper i proceedingPeer review

Sammanfattning

We present a technique to measure gate-controlled photoluminescence (PL) on arrays of semiconductor nanowire (NW) capacitors using a transparent film of Indium-Tin-Oxide (ITO) wrapping around the nanowires as the gate electrode. By tuning the wrap-gate voltage, it is possible to increase the PL peak intensity of an array of undoped InP NWs by more than an order of magnitude. The fine structure of the PL spectrum reveals three subpeaks whose relative peak intensities change with gate voltage. We interpret this as gate-controlled state-filling of luminescing quantum dot segments formed by zincblende stacking faults in the mainly wurtzite NW crystal structure.
Originalspråkengelska
Titel på värdpublikationPhysics of Semiconductors
FörlagAmerican Institute of Physics (AIP)
Sidor427-428
Volym1566
DOI
StatusPublished - 2013
Evenemang31st International Conference on the Physics of Semiconductors (ICPS) - Zurich, SWITZERLAND
Varaktighet: 2012 juli 292012 aug. 3

Publikationsserier

Namn
Volym1566
ISSN (tryckt)1551-7616
ISSN (elektroniskt)0094-243X

Konferens

Konferens31st International Conference on the Physics of Semiconductors (ICPS)
Period2012/07/292012/08/03

Ämnesklassifikation (UKÄ)

  • Den kondenserade materiens fysik
  • Nanoteknik

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