Core-shell InP-CdS nanowires: fabrication and study

[en] InP nanowires are fabricated by organo-metallic vapour phase epitaxy and studied via photoluminescence measurements performed on single nanowires, finding evidence of state filling with increasing excitation power density. To increase flexibility in fabrication technology we developed a wet chemical procedure to grow a CdS shell on these wires. In these InP–CdS wires the luminescence efficiency was decreased with respect to the bare wires. The CdS capping procedure needs further investigations to improve the emission properties of nanowires, in order to become technically useful. We suggest as possible improvements of this technique to increase the bath temperature and/or illuminate the sample with UV radiation during the capping procedure.

Disciplines :

Physics

Author, co-author :

Zanolli, Zeila ; Lund University > Solid State Physics

Wacaser, Brent A

Pistol, Mats-Erik

Deppert, Knut

Samuelson, Lars

Language :

English

Title :

Core-shell InP-CdS nanowires: fabrication and study

Publication date :

2007

Journal title :

Journal of Physics: Condensed Matter

ISSN :

0953-8984

eISSN :

1361-648X

Publisher :

Institute of Physics, Bristol, United Kingdom

Volume :

Issue :

Peer reviewed :

Peer Reviewed verified by ORBi

Additional URL :

http://iopscience.iop.org/0953-8984/19/29/295218

Available on ORBi :

since 28 October 2011

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