Reply on the ¡°critical comments on speculations with ¡­ free-volume defects ¡­ in ion-conducting Ag/AgI-As₂S₃ glasses¡­¡±

详细信息    查看全文

• 作者：T. Kavetskyy^a ; ^{kavetskyy@yahoo.com} ; J. Borc^b ; P. Petkov^c ; K. Kolev^d ; T. Petkova^d ; V. Tsmots^a
• 关键词：Chalcogenide glasses ; Ionic conductors ; Free-volume ; Positron annihilation
• 刊名：Solid State Ionics
• 出版年：2013
• 出版时间：21 February, 2013
• 年：2013
• 卷：233
• 期：Complete
• 页码：107-109
• 全文大小：157 K

文摘

Critical comments of Shpotyuk et al. [O. Shpotyuk, J. Filipecki, M. Hyla, A. Ingram, Solid State Ionics 208 (2012) 1] are shown to be inconsistent with the experimental results obtained for a size of free-volume defects in ion-conducting Ag/AgI-As₂S₃ glasses in view of a new formula for positron lifetime m>¦Óm>₂ versus radius of voids m>Rm> for m>Rm> < 5 ?, discovered by Liao et al. [K.-S. Liao, H. Chen, S. Awad, J.-P. Yuan, W.-S. Hung, K.-R. Lee, J.-Y. Lai, C.-C. Hu, Y.C. Jean, Macromolecules 44 (2011) 6818]. In particular, the statement that only voids with volume ~ 80-100 ?³ can be effective positron traps with more prolonged lifetimes of m>¦Óm>₂ = 0.35-0.38 ns is at least inconclusive in terms of a new approach. The experimental results and schematic model reported by Kavetskyy et al. [T. Kavetskyy, J. Borc, P. Petkov, K. Kolev, T. Petkova, Solid State Ionics 183 (2011) 16] are a direct evidence of validity of a newly modified equation for m>¦Óm>₂-m>Rm> correlation in the case of inorganic polymeric chalcogenide glasses without orthopositronium component in positron annihilation lifetime spectroscopy.