Nano-porosity in GaSb induced by swift heavy ion irradiation

P. Kluth; J. Sullivan; W. Li; R. Weed; C. S. Schnohr; R. Giulian; L. L. Araujo; W. Lei; M. D. Rodriguez; B. Afra; T. Bierschenk; R. C. Ewing; M. C. Ridgway

doi:10.1063/1.4861747

Nano-porosity in GaSb induced by swift heavy ion irradiation

P. Kluth^*, J. Sullivan, W. Li, R. Weed, C. S. Schnohr, R. Giulian, L. L. Araujo, W. Lei, M. D. Rodriguez, B. Afra, T. Bierschenk, R. C. Ewing, M. C. Ridgway

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

27 Citations (Scopus)

Abstract

Nano-porous structures form in GaSb after ion irradiation with 185 MeV Au ions. The porous layer formation is governed by the dominant electronic energy loss at this energy regime. The porous layer morphology differs significantly from that previously reported for low-energy, ion-irradiated GaSb. Prior to the onset of porosity, positron annihilation lifetime spectroscopy indicates the formation of small vacancy clusters in single ion impacts, while transmission electron microscopy reveals fragmentation of the GaSb into nanocrystallites embedded in an amorphous matrix. Following this fragmentation process, macroscopic porosity forms, presumably within the amorphous phase.

Original language	English
Article number	023105
Journal	Applied Physics Letters
Volume	104
Issue number	2
DOIs	https://doi.org/10.1063/1.4861747
Publication status	Published - 13 Jan 2014

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title = "Nano-porosity in GaSb induced by swift heavy ion irradiation",

abstract = "Nano-porous structures form in GaSb after ion irradiation with 185 MeV Au ions. The porous layer formation is governed by the dominant electronic energy loss at this energy regime. The porous layer morphology differs significantly from that previously reported for low-energy, ion-irradiated GaSb. Prior to the onset of porosity, positron annihilation lifetime spectroscopy indicates the formation of small vacancy clusters in single ion impacts, while transmission electron microscopy reveals fragmentation of the GaSb into nanocrystallites embedded in an amorphous matrix. Following this fragmentation process, macroscopic porosity forms, presumably within the amorphous phase.",

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T1 - Nano-porosity in GaSb induced by swift heavy ion irradiation

AU - Kluth, P.

AU - Sullivan, J.

AU - Li, W.

AU - Weed, R.

AU - Schnohr, C. S.

AU - Giulian, R.

AU - Araujo, L. L.

AU - Lei, W.

AU - Rodriguez, M. D.

AU - Afra, B.

AU - Bierschenk, T.

AU - Ewing, R. C.

AU - Ridgway, M. C.

PY - 2014/1/13

Y1 - 2014/1/13

N2 - Nano-porous structures form in GaSb after ion irradiation with 185 MeV Au ions. The porous layer formation is governed by the dominant electronic energy loss at this energy regime. The porous layer morphology differs significantly from that previously reported for low-energy, ion-irradiated GaSb. Prior to the onset of porosity, positron annihilation lifetime spectroscopy indicates the formation of small vacancy clusters in single ion impacts, while transmission electron microscopy reveals fragmentation of the GaSb into nanocrystallites embedded in an amorphous matrix. Following this fragmentation process, macroscopic porosity forms, presumably within the amorphous phase.

AB - Nano-porous structures form in GaSb after ion irradiation with 185 MeV Au ions. The porous layer formation is governed by the dominant electronic energy loss at this energy regime. The porous layer morphology differs significantly from that previously reported for low-energy, ion-irradiated GaSb. Prior to the onset of porosity, positron annihilation lifetime spectroscopy indicates the formation of small vacancy clusters in single ion impacts, while transmission electron microscopy reveals fragmentation of the GaSb into nanocrystallites embedded in an amorphous matrix. Following this fragmentation process, macroscopic porosity forms, presumably within the amorphous phase.

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DO - 10.1063/1.4861747

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JO - Applied Physics Letters

JF - Applied Physics Letters

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ER -

Nano-porosity in GaSb induced by swift heavy ion irradiation

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