Electronic structure of the Fe-layer-catalyzed carbon nanotubes studied by x-ray-absorption spectroscopy
學年 90
學期 1
出版（發表）日期 2001-11-01
作品名稱 Electronic structure of the Fe-layer-catalyzed carbon nanotubes studied by x-ray-absorption spectroscopy
作品名稱（其他語言）
著者 Yeh, C. L.; Jan, J. C.; Chiou, J. W.; Pong, W. F.; Tsai, M.-H.; Chang, Y. K.; Chen, Y. Y.; Lee, Y. F.; Tseng, P. K.; Wei, S. L.; Wen, C. Y.; Chen, L. C.; Chen, K. H.
單位 淡江大學物理學系
出版者 College Park: American Institute of Physics
著錄名稱、卷期、頁數 Applied Physics Letters 79(19), pp.3179-3181
摘要 X-ray-absorption near edge structure (XANES) measurements have been performed to investigate the local electronic structures of the Fe-catalyzed and stabilized carbon nanotubes (CNT) with various diameters. The intensities of the π∗- and σ∗-band and the interlayer-state features in the C K-edge XANES spectra of these CNTs vary with the diameter of the CNT. The white-line features at the C K- and Fe L3-edges suggest a strong hybridization between the C 2p and Fe 3d orbitals, which lead to an enhancement of the C K- and reduction of the Fe L3-edge features, respectively, indicative of a charge transfer from C 2p to Fe 3d orbitals. The Fe K-edge spectra reveal a p–d rehybridization effect that reduces p-orbital occupation at the Fe site.
關鍵字 carbon nanotubes;electronic structure;XANES;charge exchange
語言 en
ISSN 0003-6951
期刊性質 國外
收錄於
產學合作
通訊作者 Pong, W. F.
審稿制度
國別 USA
公開徵稿
出版型式 紙本
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