Ion irradiation induced structural modifications in diamond nanoparticles

S. Talapatra; Ju Yin Cheng; N. Chakrapani; S. Trasobares; A. Cao; R. Vajtai; M. B. Huang; P. M. Ajayan

doi:10.1088/0957-4484/17/1/052

Ion irradiation induced structural modifications in diamond nanoparticles

S. Talapatra
, Ju Yin Cheng
, N. Chakrapani
, S. Trasobares
, A. Cao
, R. Vajtai
, M. B. Huang
, P. M. Ajayan

Nanoscale Science and Engineering

University at Albany

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

38 Scopus citations

Abstract

Structural modification of nanosized diamonds (ND) irradiated with 100 keV ¹⁵N ions for various doses was investigated using transmission electron microscopy (TEM) and Raman spectroscopy. Raman active modes showing a long-range order of diamond were observed for samples dosed with 10 ¹⁵ cm^-2. However, the formation of a graphitic phase was observed, from TEM images, for ion doses as low as 10¹⁴ cm ^-2. The threshold dose for complete transformation of ND (sp ³ to sp²) due to this implant is found to be greater than 10¹⁵cm^-2. The technique could prove valuable to tailor carbon nanostructures with controlled fractions of sp³-sp ² bonding.

Original language	English
Pages (from-to)	305-309
Number of pages	5
Journal	Nanotechnology
Volume	17
Issue number	1
DOIs	https://doi.org/10.1088/0957-4484/17/1/052
State	Published - Jan 14 2006

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title = "Ion irradiation induced structural modifications in diamond nanoparticles",

abstract = "Structural modification of nanosized diamonds (ND) irradiated with 100 keV 15N ions for various doses was investigated using transmission electron microscopy (TEM) and Raman spectroscopy. Raman active modes showing a long-range order of diamond were observed for samples dosed with 10 15 cm-2. However, the formation of a graphitic phase was observed, from TEM images, for ion doses as low as 1014 cm -2. The threshold dose for complete transformation of ND (sp 3 to sp2) due to this implant is found to be greater than 1015cm-2. The technique could prove valuable to tailor carbon nanostructures with controlled fractions of sp3-sp 2 bonding.",

author = "S. Talapatra and Cheng, \{Ju Yin\} and N. Chakrapani and S. Trasobares and A. Cao and R. Vajtai and Huang, \{M. B.\} and Ajayan, \{P. M.\}",

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T1 - Ion irradiation induced structural modifications in diamond nanoparticles

AU - Talapatra, S.

AU - Cheng, Ju Yin

AU - Chakrapani, N.

AU - Trasobares, S.

AU - Cao, A.

AU - Vajtai, R.

AU - Huang, M. B.

AU - Ajayan, P. M.

PY - 2006/1/14

Y1 - 2006/1/14

N2 - Structural modification of nanosized diamonds (ND) irradiated with 100 keV 15N ions for various doses was investigated using transmission electron microscopy (TEM) and Raman spectroscopy. Raman active modes showing a long-range order of diamond were observed for samples dosed with 10 15 cm-2. However, the formation of a graphitic phase was observed, from TEM images, for ion doses as low as 1014 cm -2. The threshold dose for complete transformation of ND (sp 3 to sp2) due to this implant is found to be greater than 1015cm-2. The technique could prove valuable to tailor carbon nanostructures with controlled fractions of sp3-sp 2 bonding.

AB - Structural modification of nanosized diamonds (ND) irradiated with 100 keV 15N ions for various doses was investigated using transmission electron microscopy (TEM) and Raman spectroscopy. Raman active modes showing a long-range order of diamond were observed for samples dosed with 10 15 cm-2. However, the formation of a graphitic phase was observed, from TEM images, for ion doses as low as 1014 cm -2. The threshold dose for complete transformation of ND (sp 3 to sp2) due to this implant is found to be greater than 1015cm-2. The technique could prove valuable to tailor carbon nanostructures with controlled fractions of sp3-sp 2 bonding.

UR - https://www.scopus.com/pages/publications/29144452060

U2 - 10.1088/0957-4484/17/1/052

DO - 10.1088/0957-4484/17/1/052

M3 - Article

SN - 0957-4484

VL - 17

SP - 305

EP - 309

JO - Nanotechnology

JF - Nanotechnology

IS - 1

ER -

Ion irradiation induced structural modifications in diamond nanoparticles

Abstract

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