Synchrotron x-ray and optical studies of the structure of HgSe semiconductor nanoclusters confined in zeolite L and zeolite Y

被引：15

作者：

Abeykoon, A. M. M. ^{[1
]}

Castro-Colin, M. ^{[2
]}

Anokhina, E. V. ^{[3
]}

Iliev, M. N. ^{[4
]}

Donner, W. ^{[1
]}

Jacobson, A. J. ^{[5
]}

Moss, S. C. ^{[1
]}

机构：

[1] Univ Houston, Dept Phys, Houston, TX 77204 USA

[2] Univ Texas El Paso, Dept Phys, El Paso, TX 79968 USA

[3] Univ Houston, Dept Chem, Houston, TX 77204 USA

[4] Univ Houston TcSUH, Texas Ctr Superconduct, Houston, TX 77204 USA

[5] TcSUH, Dept Chem, Houston, TX 77204 USA

来源：

PHYSICAL REVIEW B | 2008年 / 77卷 / 07期

关键词：

BUILDING-BLOCKS; NANOCRYSTALS; SPECTRA;

D O I：

10.1103/PhysRevB.77.075333

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

HgSe semiconductor nanoclusters were fabricated in nearly spherical pores of zeolite Y and one-dimensional (1D) tubular pores of zeolite L. Anomalous x-ray scattering (AXS) data sets were collected on both HgSe/zeolite Y and HgSe/zeolite L systems, together with optical studies (Raman and UV-visible absorption). Two distinct structural models were determined by performing the Rietveld refinement on AXS data sets. Given the existence of a pronounced diffuse scattering in both filled zeolites and our refined models without the observed diffuse background, for each system, we propose the existence of an average HgSe nanocluster or a 1D nanostructure and the related disorder within the nanocluster which gives off the diffuse scattering. Optical studies were used to complement our x-ray structural work.

引用

页数：10

共 34 条

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