Magnetic properties and photoluminescence of undoped and transition metal doped AlN nanorods

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

Abstract

The undoped and transition metal (TM) -doped AlN (AlN:Cu and AlN:Fe) nanorods on silicon substrates were fabricated using a catalysis-free vapor phase method. All the nanorods exhibited high crystalline quality and preferred c-axis orientation. Room-temperature photoluminescence (PL) measurement revealed that undoped AlN nanorods exhibited strong oxygen-related impurity emission at ∼3.25 eV. However, AlN:Fe nanorods had two strong ultraviolet emissions at 3.69 and 6.02 eV which could be attributed to Fe3+-related and band-edge emission, respectively. Both the Cu and Fe-doped AlN nanorods are ferromagnetic. The spontaneous saturated magnetization of the AlN:Cu and AlN:Fe nanorods were determined to be 0.38 and 3.5 emu/cm3at room temperature, respectively. The Fe-doped AlN nanorods not only exhibited ferromagnetism but also significantly enhanced the band-edge emission as compared to the undoped AlN nanorods.
Original languageEnglish
Title of host publication2008 2nd IEEE International Nanoelectronics Conference, INEC 2008
Pages206-209
Number of pages4
DOIs
Publication statusPublished - 1 Oct 2008
Externally publishedYes
Event2008 2nd IEEE International Nanoelectronics Conference, INEC 2008 - Shanghai, China
Duration: 24 Mar 200827 Mar 2008

Conference

Conference2008 2nd IEEE International Nanoelectronics Conference, INEC 2008
Country/TerritoryChina
CityShanghai
Period24/03/0827/03/08

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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