Reference : Defect Distribution along Single GaN Nanowhiskers
Scientific journals : Article
Engineering, computing & technology : Electrical & electronics engineering
http://hdl.handle.net/10993/20373
Defect Distribution along Single GaN Nanowhiskers
English
Cavallini, Anna [Physics Department, University of Bologna, Viale Berti Pichat 6/2, 40127 Bologna, Italy]
Polenta, Laura [Physics Department, University of Bologna, Viale Berti Pichat 6/2, 40127 Bologna, Italy]
Rossi, Marco [Physics Department, University of Bologna, Viale Berti Pichat 6/2, 40127 Bologna, Italy]
Richter, Thomas [Institute of Thin Films and Interfaces (ISG1) and cni - Centre of Nanoelectronic Systems for Information Technology, Research Center Julich]
Marso, Michel mailto [Institute of Thin Films and Interfaces (ISG1) and cni - Centre of Nanoelectronic Systems for Information Technology, Research Center Julich]
Meijers, Ralph [Institute of Thin Films and Interfaces (ISG1) and cni - Centre of Nanoelectronic Systems for Information Technology, Research Center Julich]
Calarco, Raffaella [Institute of Thin Films and Interfaces (ISG1) and cni - Centre of Nanoelectronic Systems for Information Technology, Research Center Julic]
Lüth, Hans [Institute of Thin Films and Interfaces (ISG1) and cni - Center of Nanoelectronic Systems for Information Technology, Research Centre Jülich, 52425 Jülich, Germany]
2006
Nano Letters
American Chemical Society
6
7
1548-1551
Yes (verified by ORBilu)
1530-6984
1530-6992
[en] In this letter we report on spectral photoconductivity (PC) on different sections of single MBE-grown GaN nanowhiskers of diameters ranging on the order of 100 nm. The photoconductivity spectra show, besides the band-gap related transition, deep-levels corresponding to the yellow, green, and blue bands. A strong spatial localization of specific photocurrent peaks has been observed, indicating that the defects responsible for such transitions are distributed inhomogeneously along the column growth direction.
http://hdl.handle.net/10993/20373
10.1021/nl060332n
http://cat.inist.fr/?aModele=afficheN&cpsidt=17945750

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