Real-Time Observation of Morphological Transformations in II–VI Semiconducting Nanobelts via Environmental Transmission Electron Microscopy | Zendy

Rahul Agarwal | Zendy; Dmitri N. Zakharov | Zendy; Nadia M. Krook | Zendy; Wenjing Liu | Zendy; Jacob S. Berger | Zendy; Eric A. Stach | Zendy; Ritesh Agarwal | Zendy

Open Access

Real-Time Observation of Morphological Transformations in II–VI Semiconducting Nanobelts via Environmental Transmission Electron Microscopy

Author(s) -

Rahul Agarwal,

Dmitri N. Zakharov,

Nadia M. Krook,

Wenjing Liu,

Jacob S. Berger,

Eric A. Stach,

Ritesh Agarwal

Publication year - 2015

Publication title -

nano letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 4.853

H-Index - 488

eISSN - 1530-6992

pISSN - 1530-6984

DOI - 10.1021/acs.nanolett.5b00520

Subject(s) - wurtzite crystal structure , transmission electron microscopy , materials science , oxidizing agent , nanotechnology , high resolution transmission electron microscopy , nanostructure , isotropic etching , chemical engineering , etching (microfabrication) , chemistry , metallurgy , organic chemistry , layer (electronics) , zinc , engineering

It has been observed that wurtzite II-VI semiconducting nanobelts transform into single-crystal, periodically branched nanostructures upon heating. The mechanism of this novel transformation has been elucidated by heating II-VI nanobelts in an environmental transmission electron microscope (ETEM) in oxidizing, reducing, and inert atmospheres while observing their structural changes with high spatial resolution. The interplay of surface reconstruction of high-energy surfaces of the wurtzite phase and environment-dependent anisotropic chemical etching of certain crystal surfaces in the branching mechanism of nanobelts has been observed. Understanding of structural and chemical transformations of materials via in situ microscopy techniques and their role in designing new nanostructured materials is discussed.

The content you want is available to Zendy users.

Already have an account? Click here to sign in.

Having issues? You can contact us here

Accelerating Research