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http://dx.doi.org/10.6111/JKCGCT.2013.23.6.291

Enhanced nucleation density by heat treatment of nanodiamond seed particles  

Park, Jong Cheon (Department of Nano Fusion Technology, Pusan National University)
Jeong, Ok Geun (Department of Nano Fusion Technology, Pusan National University)
Son, Bit Na (Department of Nanomechatronics Engineering, Pusan National University)
Cho, Hyun (Department of Nanomechatronics Engineering, Pusan National University)
Publication Information
Journal of the Korean Crystal Growth and Crystal Technology / v.23, no.6, 2013 , pp. 291-295 More about this Journal
Abstract
Surface chemical modification via air and hydrogen heat treatment was found to relieve the aggregation of nanodiamond (ND) seed particles and lead to a significantly enhanced nucleation density for ultrananocrystalline diamond (UNCD) film growth. After heat treatment in air and hydrogen, modification of surface functionalities and increase in the zeta potential were observed. Mean size of the ND aggregates was also dramatically reduced from ${\sim}2{\mu}m$ to ~55 nm. Si surface seeded with ND particles heat-treated at $600^{\circ}C$ in hydrogen produced a much higher nucleation density of ${\sim}2.7{\times}10^{11}cm^{-2}$ compared to untreated ND seeds.
Keywords
Nanocrystalline diamond seeds; Aggregation; Heat treatment; Surface chemical modification; Nucleation density;
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Times Cited By KSCI : 2  (Citation Analysis)
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