Quantum confinement effect in diamond nanocrystals studied by X-ray-absorption spectroscopy

被引：109

作者：

Chang, YK

Hsieh, HH

Pong, WF ^{[1
]}

Tsai, MH

Chien, FZ

Tseng, PK

Chen, LC

Wang, TY

Chen, KH

Bhusari, DM

Yang, JR

Lin, ST

机构：

[1] Tamkang Univ, Dept Phys, Tamsui 251, Taiwan

[2] Natl Sun Yat Sen Univ, Dept Phys, Kaohsiung 804, Taiwan

[3] Natl Taiwan Univ, Ctr Condensed Matter Sci, Taipei 107, Taiwan

[4] Acad Sinica, Inst Atom & Mol Sci, Taipei 107, Taiwan

[5] Natl Taiwan Univ Sci & Technol, Dept Mech Engn, Taipei 107, Taiwan

来源：

PHYSICAL REVIEW LETTERS | 1999年 / 82卷 / 26期

关键词：

D O I：

10.1103/PhysRevLett.82.5377

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

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 mu m 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.

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页码：5377 / 5380

页数：4

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