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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.


Related in: MedlinePlus

Absorption spectra of Au-Bi2Te3_T_FW, T_FW and Blue eta_Cu over the wavelength range of 300–2500 nm.
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ijms-16-12547-f003: Absorption spectra of Au-Bi2Te3_T_FW, T_FW and Blue eta_Cu over the wavelength range of 300–2500 nm.

Mentions: The absorption spectra of Au-Bi2Te3_T_FW, T_FW and BlueTec eta plus_Cu (Blue eta_Cu) over the wavelength range of 300–2500 nm is presented in Figure 3. Blue eta_Cu is a commercial absorber that functions as a solar thermal collector with an excellent solar absorption (0.945, AM 1.5) and effectively transforms solar energy into heat (BlueTec GmbH & Co KG, Hese, Germany) [44]. From Figure 3, we can find that the T_FW show excellent absorption over the visible and near infrared light region (300–909 nm) because of the coupling effect between the melanin/chitin composite and the HSAQS of the T_FW, which was demonstrated in our previous work [40]. Compared with the absorption of the T_FW, the Au-Bi2Te3_T_FW possesses an enhanced infrared absorption due to plasmon resonance of the Au NPs and the coherent coupling between adjacent resonance systems integrated with the HSAQS of the T_FW [40]. Furthermore, compared with the Blue eta_Cu, Au-Bi2Te3_T_FW exhibits a more effective light absorption performance over a wide spectral range, except in the wavelength ranges of 531–614 and 1443–1721 nm. The average absorbance intensities increased by 59.51% in the wavelength range of 300–2500 nm. These results demonstrate that the Au-Bi2Te3_T_FW combined Au-Bi2Te3 nanocomposite with the HSAQS of the T_FW possesses an excellent light absorption performance over a wide spectral range, especially over the infrared range.


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)

Absorption spectra of Au-Bi2Te3_T_FW, T_FW and Blue eta_Cu over the wavelength range of 300–2500 nm.
© Copyright Policy
Related In: Results  -  Collection

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

ijms-16-12547-f003: Absorption spectra of Au-Bi2Te3_T_FW, T_FW and Blue eta_Cu over the wavelength range of 300–2500 nm.
Mentions: The absorption spectra of Au-Bi2Te3_T_FW, T_FW and BlueTec eta plus_Cu (Blue eta_Cu) over the wavelength range of 300–2500 nm is presented in Figure 3. Blue eta_Cu is a commercial absorber that functions as a solar thermal collector with an excellent solar absorption (0.945, AM 1.5) and effectively transforms solar energy into heat (BlueTec GmbH & Co KG, Hese, Germany) [44]. From Figure 3, we can find that the T_FW show excellent absorption over the visible and near infrared light region (300–909 nm) because of the coupling effect between the melanin/chitin composite and the HSAQS of the T_FW, which was demonstrated in our previous work [40]. Compared with the absorption of the T_FW, the Au-Bi2Te3_T_FW possesses an enhanced infrared absorption due to plasmon resonance of the Au NPs and the coherent coupling between adjacent resonance systems integrated with the HSAQS of the T_FW [40]. Furthermore, compared with the Blue eta_Cu, Au-Bi2Te3_T_FW exhibits a more effective light absorption performance over a wide spectral range, except in the wavelength ranges of 531–614 and 1443–1721 nm. The average absorbance intensities increased by 59.51% in the wavelength range of 300–2500 nm. These results demonstrate that the Au-Bi2Te3_T_FW combined Au-Bi2Te3 nanocomposite with the HSAQS of the T_FW possesses an excellent light absorption performance over a wide spectral range, especially over the infrared range.

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