4 nm ZnO nanocrystals fabrication through electron beam irradiation on the surface of a ZnO nanoneedle formed by thermal annealing. Issue 1 (2nd December 2016)

• Record Type: Journal Article
• Authors: Li, Jian-Min
• Is Part Of: CrystEngComm. Volume 19:Issue 1(2017)
• Page Start: 32
• Page End: 39
• Publication Date: 2016-12-02
• Subjects: Crystals -- Periodicals; Crystal growth -- Periodicals; Crystallography -- Periodicals; Cristaux -- Périodiques; Cristaux -- Croissance -- Périodiques; Cristallographie -- Périodiques; 548
• DOI: 10.1039/c6ce02187e
• Languages: English
• ISSNs: 1466-8033

Abstract

Abstract : The electron beam irradiation effect was explored for the integration of well-separated ZnO nanocrystal homoepitaxial growth on the surface of an individual ZnO nanoneedle. Abstract : A vertically-oriented growth of the monolithic ZnO nanocrystals (NCs)-on-nanoneedle (NN) single-crystalline (SC) hybrids is presented with intrinsic nanoscale complexity, consisting of spatially homogeneously distributed ultrahigh-density (2.0 × 10 4 μm −2 ) on-site homoepitaxial growth of 4 nm ZnO NCs on the surface of vertically oriented high-density (8 × 10 8 cm −2 ) SC [101̄0] ZnO NNs. The electron-beam stimulated "self-additive on-surface oxidation-limited growth" at room temperature is proposed for the on-site growth of numerous ZnO NCs on the (0001) facets of a single ZnO NN. Compared with heterojunctions, the unprecedented compact monolithic ZnO NCs-on-NN SC hybrids, growing from the inside out, may hold great promise for enhanced photovoltaic performance ( e.g., electron mobility) of ZnO NC-sensitized solar cells.