Template-Free Bipotentiostatic Deposition of Thermoelectric BixTey Nano Arrays

Xin Bo; Feng Wang; Chuan Zhao

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Template-Free Bipotentiostatic Deposition of Thermoelectric BixTey Nano Arrays

机译：热电BixTey纳米阵列的无模板双恒电位沉积

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Monodispersed Bi-Tenano arrays are achieved via template-free bipotentiostatic deposition. The diameter and length of individual nanorod is ~80 nm and ~250 nm respectively. The electrodeposition process is demonstrated to follow a two-step mechanism: an instantaneous reductive potential is applied to form dispersive nuclei, then a reverse oxidative potential strips partial Bi atoms to prevent further cross-growth. Repeatedly, the nano arrays film is obtained eventually. The thermoelectric properties of the obtained Bi-Tenano arrays such as electrical resistance, carrier density, Seebeck coefficient and power factor are measured to be 2.438 × 10-4?Ω·m, 4.251 × 1020 cm-3, -25.892 μV·K-1, 2.750 × 10-6 W·m-1·K2, respectively.

机译：单分散的双Tenano阵列是通过无模板的双恒电位沉积来实现的。单个纳米棒的直径和长度分别为〜80 nm和〜250 nm。已证明电沉积过程遵循两步机制：施加瞬时还原电势以形成分散核，然后反向氧化电势剥离部分Bi原子以防止进一步的交叉生长。重复地，最终获得纳米阵列膜。获得的Bi-Tenano阵列的热电特性如电阻，载流子密度，塞贝克系数和功率因数经测量为2.438×10-4？Ω·m，4.251×1020 cm-3，-25.892μV·K- 1，分别为2.750×10-6 W·m-1·K2。

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《Journal of Materials Science and Chemical Engineering》 |2017年第1期|共7页
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Xin Bo; Feng Wang; Chuan Zhao;
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Template-Free Bipotentiostatic Deposition of Thermoelectric BixTey Nano Arrays

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