SEMICONDUCTOR PHYSICS

Confinement of gold quantum dot arrays inside ordered mesoporous silica thin film

Chi Yaqing, Zhong Haiqin, Zhang Xueao, Fang Liang and Chang Shengli

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Abstract: Periodic disposed quantum dot arrays are very useful for the large scale integration of single electron devices. Gold quantum dot arrays were self-assembled inside pore channels of ordered amino-functionalized mesoporous silica thin films, employing the neutralization reaction between chloroauric acid and amino groups. The diameters of quantum dots are controlled via changing the aperture of pore channels from 2.3 to 8.3 nm, which are characterized by HRTEM, SEM and FT-IR. UV-vis absorption spectra of gold nanoparticle/mesoporous silica composite thin films exhibit a blue shift and intensity drop of the absorption peak as the aperture of mesopores decreases, which represents the energy level change of quantum dot arrays due to the quantum size effect.

Key words: gold quantum dot array

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    Received: 18 August 2015 Revised: 25 May 2009 Online: Published: 01 December 2009

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      Chi Yaqing, Zhong Haiqin, Zhang Xueao, Fang Liang, Chang Shengli. Confinement of gold quantum dot arrays inside ordered mesoporous silica thin film[J]. Journal of Semiconductors, 2009, 30(12): 122001. doi: 10.1088/1674-4926/30/12/122001 Chi Y Q, Zhong H Q, Zhang X A, Fang L, Chang S L. Confinement of gold quantum dot arrays inside ordered mesoporous silica thin film[J]. J. Semicond., 2009, 30(12): 122001. doi: 10.1088/1674-4926/30/12/122001.Export: BibTex EndNote
      Citation:
      Chi Yaqing, Zhong Haiqin, Zhang Xueao, Fang Liang, Chang Shengli. Confinement of gold quantum dot arrays inside ordered mesoporous silica thin film[J]. Journal of Semiconductors, 2009, 30(12): 122001. doi: 10.1088/1674-4926/30/12/122001

      Chi Y Q, Zhong H Q, Zhang X A, Fang L, Chang S L. Confinement of gold quantum dot arrays inside ordered mesoporous silica thin film[J]. J. Semicond., 2009, 30(12): 122001. doi: 10.1088/1674-4926/30/12/122001.
      Export: BibTex EndNote

      Confinement of gold quantum dot arrays inside ordered mesoporous silica thin film

      doi: 10.1088/1674-4926/30/12/122001
      • Received Date: 2015-08-18
      • Accepted Date: 2009-03-25
      • Revised Date: 2009-05-25
      • Published Date: 2009-12-04

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