Synthesis, Characterization, and Spectroscopy of Type-II Core/Shell Semiconductor Nanocrystals with ZnTe Cores

Type‐II core/shell quantum dots are characterized by a staggered alignment of conduction and valence bands (see Figure), giving rise to a broad tunability of absorption and emission wavelengths. Colloidal ZnTe/CdE (E = S, Se, Te) core/shell quantum dots have been prepared with emission quantum yield...

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Bibliographic Details
Published inAdvanced materials (Weinheim) Vol. 17; no. 22; pp. 2741 - 2745
Main Authors Xie, R., Zhong, X., Basché, T.
Format Journal Article
LanguageEnglish
Published Weinheim WILEY-VCH Verlag 18.11.2005
WILEY‐VCH Verlag
Subjects
core-shell
Core-shell particles
II-IV semiconductor
Nanoparticles
Nanoparticles, core–shell
Nanoparticles, II–IV semiconductor
Zinc telluride
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Summary:Type‐II core/shell quantum dots are characterized by a staggered alignment of conduction and valence bands (see Figure), giving rise to a broad tunability of absorption and emission wavelengths. Colloidal ZnTe/CdE (E = S, Se, Te) core/shell quantum dots have been prepared with emission quantum yields of up to 30 %. The synthesis route presented should be applicable to other type‐II core/shell quantum dots.
Bibliography:ArticleID:ADMA200501029
ark:/67375/WNG-MHLDJMBW-T
This work was supported by the Deutsche Forschungsgemeinschaft through SFB 625 (B7).
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ISSN:0935-9648
1521-4095
DOI:10.1002/adma.200501029