Self‐organization of periodically structured single‐crystalline zinc branches by electrodeposition

Abstract

We report here the electrodeposition of periodically structured single-crystalline zinc branches from an ultrathin aqueous electrolyte layer of ZnSO 4 . The main trunk and side branches of electrodeposits are regularly angled, and each branch is made of periodic bead-like structures. Layered morphology has been observed on each bead. During electrodeposition, spontaneous oscillation of electric current occurs when constant voltage is applied across the electrodes, and the oscillation leads to periodic patterns on deposit branches. According to electron diffraction of transmission electron microscopy (TEM), the whole branch of electrodeposits has the same crystallographic orientation despite the fact that the branch looks like an assembly of beads. We interpret this unique growth behavior to the epitaxial nucleation in the transport-limited growth system.

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Dendrite growth of energetic material RDX

“…The current investigations in fractal field have focused on inorganic salts [2][3][4][5][6][7][8][9][10], metals [11][12][13][14][15][16][17][18][19][20][21], metallic compounds [22][23][24][25], alloys [26][27][28], and superpolymers [29][30][31]. Various fractal structures are obtained through controlling the crystallization conditions.…”

The Periodic Instability of Diameter of ZnO Nanowires via a Self-oscillatory Mechanism

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