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Hydrothermal Synthesis Au-Bi2Te3 Nanocomposite Thermoelectric Film with a Hierarchical Sub-Micron Antireflection Quasi-Periodic Structure.

Tian J, Zhang W, Zhang Y, Xue R, Wang Y, Zhang Z, Zhang D - Int J Mol Sci (2015)

Bottom Line: In this work, Au-Bi(2)Te(3) nanocomposite thermoelectric film with a hierarchical sub-micron antireflection quasi-periodic structure was synthesized via a low-temperature chemical route using Troides helena (Linnaeus) forewing (T_FW) as the biomimetic template.This method combines chemosynthesis with biomimetic techniques, without the requirement of expensive equipment and energy intensive processes.The heterogeneity of heat source density distribution of the Au-Bi(2)Te(3) nanocomposite thermoelectric film opens up a novel promising technique for generating thermoelectric power under illumination.

View Article: PubMed Central - PubMed

Affiliation: State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200240, China. tianjunlong666@sjtu.edu.cn.

ABSTRACT
In this work, Au-Bi(2)Te(3) nanocomposite thermoelectric film with a hierarchical sub-micron antireflection quasi-periodic structure was synthesized via a low-temperature chemical route using Troides helena (Linnaeus) forewing (T_FW) as the biomimetic template. This method combines chemosynthesis with biomimetic techniques, without the requirement of expensive equipment and energy intensive processes. The microstructure and the morphology of the Au-Bi(2)Te(3) nanocomposite thermoelectric film was analyzed by X-ray diffraction (XRD), field-emission scanning-electron microscopy (FESEM), and transmission electron microscopy (TEM). Coupled the plasmon resonances of the Au nanoparticles with the hierarchical sub-micron antireflection quasi-periodic structure, the Au-Bi(2)Te(3) nanocomposite thermoelectric film possesses an effective infrared absorption and infrared photothermal conversion performance. Based on the finite difference time domain method and the Joule effect, the heat generation and the heat source density distribution of the Au-Bi(2)Te(3) nanocomposite thermoelectric film were studied. The heterogeneity of heat source density distribution of the Au-Bi(2)Te(3) nanocomposite thermoelectric film opens up a novel promising technique for generating thermoelectric power under illumination.

No MeSH data available.


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Schematic representation of the procedure of fabricating of Au-Bi2Te3_T_FW.
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ijms-16-12547-f006: Schematic representation of the procedure of fabricating of Au-Bi2Te3_T_FW.

Mentions: The procedure of fabricating the Au-Bi2Te3_T_FW includes two steps (Figure 6). Firstly, to prepare the Au butterfly wing (Au _T_FW), T_FW were first immersed in diluted 8 vol % nitric acid for 2 h, and then washed in deionized water. The wings were then immersed in an ethanol solution of ethanediamine (25 vol %) for 6 h to obtain the aminated T_FW, and then washed with ethanol and deionized water. In succession, the aminated T_FW was immersed in an aqueous solution of HAuCl4 (0.2 wt %) for 10 h, washed with deionized water, then dipped in an aqueous solution of NaBH4 (0.1 mol/L) for 15 min, and rinsed in deionized water [35]. Upon completion of these steps, Au_ T_FW was fabricated. The above dipping process was done in a 30 °C constant temperature water bath. Secondly, the Au_T_FWs was put into the mixture, impregnant and sealed in an autoclave, and heated at 60 °C for 10 h. After being cooled down to room temperature, the treated wings were taken out and washed with deionized water and ethanol. Finally, the as-obtained wings were dried thoroughly in vacuum at 25 °C to obtain the target sample Au-Bi2Te3_T_FW. The impregnated mixture is composed of BiCl3·2H2O (10 mmol), TeO2 (15 mmol), KOH (80 mmol), NaBH4 (30 mmol), and deionized water (70 mL).


Hydrothermal Synthesis Au-Bi2Te3 Nanocomposite Thermoelectric Film with a Hierarchical Sub-Micron Antireflection Quasi-Periodic Structure.

Tian J, Zhang W, Zhang Y, Xue R, Wang Y, Zhang Z, Zhang D - Int J Mol Sci (2015)

Schematic representation of the procedure of fabricating of Au-Bi2Te3_T_FW.
© Copyright Policy
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4490460&req=5

ijms-16-12547-f006: Schematic representation of the procedure of fabricating of Au-Bi2Te3_T_FW.
Mentions: The procedure of fabricating the Au-Bi2Te3_T_FW includes two steps (Figure 6). Firstly, to prepare the Au butterfly wing (Au _T_FW), T_FW were first immersed in diluted 8 vol % nitric acid for 2 h, and then washed in deionized water. The wings were then immersed in an ethanol solution of ethanediamine (25 vol %) for 6 h to obtain the aminated T_FW, and then washed with ethanol and deionized water. In succession, the aminated T_FW was immersed in an aqueous solution of HAuCl4 (0.2 wt %) for 10 h, washed with deionized water, then dipped in an aqueous solution of NaBH4 (0.1 mol/L) for 15 min, and rinsed in deionized water [35]. Upon completion of these steps, Au_ T_FW was fabricated. The above dipping process was done in a 30 °C constant temperature water bath. Secondly, the Au_T_FWs was put into the mixture, impregnant and sealed in an autoclave, and heated at 60 °C for 10 h. After being cooled down to room temperature, the treated wings were taken out and washed with deionized water and ethanol. Finally, the as-obtained wings were dried thoroughly in vacuum at 25 °C to obtain the target sample Au-Bi2Te3_T_FW. The impregnated mixture is composed of BiCl3·2H2O (10 mmol), TeO2 (15 mmol), KOH (80 mmol), NaBH4 (30 mmol), and deionized water (70 mL).

Bottom Line: In this work, Au-Bi(2)Te(3) nanocomposite thermoelectric film with a hierarchical sub-micron antireflection quasi-periodic structure was synthesized via a low-temperature chemical route using Troides helena (Linnaeus) forewing (T_FW) as the biomimetic template.This method combines chemosynthesis with biomimetic techniques, without the requirement of expensive equipment and energy intensive processes.The heterogeneity of heat source density distribution of the Au-Bi(2)Te(3) nanocomposite thermoelectric film opens up a novel promising technique for generating thermoelectric power under illumination.

View Article: PubMed Central - PubMed

Affiliation: State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200240, China. tianjunlong666@sjtu.edu.cn.

ABSTRACT
In this work, Au-Bi(2)Te(3) nanocomposite thermoelectric film with a hierarchical sub-micron antireflection quasi-periodic structure was synthesized via a low-temperature chemical route using Troides helena (Linnaeus) forewing (T_FW) as the biomimetic template. This method combines chemosynthesis with biomimetic techniques, without the requirement of expensive equipment and energy intensive processes. The microstructure and the morphology of the Au-Bi(2)Te(3) nanocomposite thermoelectric film was analyzed by X-ray diffraction (XRD), field-emission scanning-electron microscopy (FESEM), and transmission electron microscopy (TEM). Coupled the plasmon resonances of the Au nanoparticles with the hierarchical sub-micron antireflection quasi-periodic structure, the Au-Bi(2)Te(3) nanocomposite thermoelectric film possesses an effective infrared absorption and infrared photothermal conversion performance. Based on the finite difference time domain method and the Joule effect, the heat generation and the heat source density distribution of the Au-Bi(2)Te(3) nanocomposite thermoelectric film were studied. The heterogeneity of heat source density distribution of the Au-Bi(2)Te(3) nanocomposite thermoelectric film opens up a novel promising technique for generating thermoelectric power under illumination.

No MeSH data available.


Related in: MedlinePlus