期刊
MATERIALS LETTERS
卷 65, 期 4, 页码 617-620出版社
ELSEVIER
DOI: 10.1016/j.matlet.2010.11.016
关键词
CuInSe2; Solvothermal synthesis; Nanocrystalline materials; Optical property
资金
- Fifth Science and Technology Foundation of Outstanding Youth of Anhui Province [10040606Y25]
- Excellent Talent Foundation of Anhui Province in Chinese Universities [2009SQRZ104ZD]
- Science and Research Foundation for Development of Hefei University [11KY01ZD]
- National Natural Science Foundation of China [20501002]
By using a solvothermal reaction in mixed solvent of ethylenediamine and ethylene glycol, nanoparticle-assembled sheet-like CuInSe2 with hierarchically mesoporous structures were successfully fabricated with the absence of any template or structure-directing agent. The as-synthesized products were characterized by XRD, EDX, FESEM, TEM, HRTEM, BET nitrogen adsorption and NIR absorption spectrum. The possible formation mechanism was simply discussed. The size of mesopores is hierarchically distributed in the range of 2-30 nm and the specific surface area was estimated to be 10.15 m(2)/g. The value of band gap (E-g) was calculated to be 1.00 eV based on its NIR absorption spectrum. (C) 2010 Elsevier B.V. All rights reserved.
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