Quantum Confinement Effect in Diamond Nanocrystals Studied by X-Ray-Absorption Spectroscopy

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Title:	Quantum Confinement Effect in Diamond Nanocrystals Studied by X-Ray-Absorption Spectroscopy
Authors:	Chang, Y. K.;Hsieh, H. H.;Pong, Way-faung;Tsai, M.-H.;Chien, F. Z.;Tseng, P. K.;Chen, L. C.;Wang, T. Y.;Chen, K. H.;Bhusari, D. M.;Yang, J. R.;Lin, S. T.
Contributors:	淡江大學物理學系
Keywords:	Binding energy;Diamond films;Electron energy loss spectroscopy;Energy gap;Grain size and shape;Nanostructured materials;Semiconducting diamonds;Thin films;X ray analysis;High energy spherical grating monochromators (HSGM);Quantum confinement effects;X ray absorption near edge structure (XANES) spectroscopy;Semiconducting films
Date:	1999-07
Issue Date:	2013-07-09 15:19:08 (UTC+8)
Publisher:	College Park: American Physical Society
Abstract:	This study measures the x-ray-absorption spectra of a series of nanodiamond thin films with grain diameters ranging from 3.5 nm to 5 μm at the C K-edge using the sample drain current mode at room temperature. Resonance peaks resembling the C 1s core exciton are observed. The exciton state and conduction band edge are found to shift to higher energies with the decrease of the grain size indicative of the presence of the quantum confinement effect.
Relation:	Physical Review Letters 82(26), pp.5377-5380
DOI:	10.1103/PhysRevLett.82.5377
Appears in Collections:	[Graduate Institute & Department of Physics] Journal Article

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