Limits...
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

(a–c) TEM images of Au-Bi2Te3_T_FW; (d) XRD result of Au-Bi2Te3_T_FW; (e) SAED image of Au-Bi2Te3_T_FW; (f) HRTEM image of Au-Bi2Te3_T_FW.
© Copyright Policy
Related In: Results  -  Collection

License
getmorefigures.php?uid=PMC4490460&req=5

ijms-16-12547-f002: (a–c) TEM images of Au-Bi2Te3_T_FW; (d) XRD result of Au-Bi2Te3_T_FW; (e) SAED image of Au-Bi2Te3_T_FW; (f) HRTEM image of Au-Bi2Te3_T_FW.

Mentions: Further insight was gained regarding the morphologies and microstructures of the Au-Bi2Te3_T_FW, and the results are shown in Figure 2. From Figure 2a, we can find that the nanoparticles deposited on the surface of the HSAQS of T_FW. Moreover, the ridges and windows structures have been clearly maintained. As shown in Figure 2b,c, the Au-Bi2Te3 nanocomposites were deposited on the surface of the bio-template and agglomerated into a thin film. Furthermore, the deposition of Au-Bi2Te3 nanocomposites onto the T_FW was examined by X-ray diffraction (XRD). As revealed by the XRD results in Figure 2d, the diffraction peaks of Au-Bi2Te3_T_FW are assigned to the (111) plane of cubic phase Au (JCPDS card No. 04-0784, Gold, syn), and (006), (101), (015), (1,0,10), (110), (205), and (0,2,10) planes of rhombohedral phase Bi2Te3 (JCPDS card No. 08-0027, Tellurobismuthite). Figure 2e is the selected area electron diffraction (SAED) image that displays ring and dot patterns corresponding to the major and minor phases in the product, respectively. The clear rings match well with the XRD results, and the relevant planes are indexed as (015) and (205) planes of the Bi2Te3, and (111) plane of Au, respectively. The lattice fringes with interplanar distance of dAu(111) = 0.24 nm and dBi2Te3(015) = 0.32 nm are exhibited in the high resolution transmission electron microscope (HRTEM) image, which agrees with the results of the JCPDS card No. 04-0784 and JCPDS card No. 08-0027. These results further confirm the successful fabrication of the Au-Bi2Te3_T_FW.


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)

(a–c) TEM images of Au-Bi2Te3_T_FW; (d) XRD result of Au-Bi2Te3_T_FW; (e) SAED image of Au-Bi2Te3_T_FW; (f) HRTEM image of Au-Bi2Te3_T_FW.
© Copyright Policy
Related In: Results  -  Collection

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

ijms-16-12547-f002: (a–c) TEM images of Au-Bi2Te3_T_FW; (d) XRD result of Au-Bi2Te3_T_FW; (e) SAED image of Au-Bi2Te3_T_FW; (f) HRTEM image of Au-Bi2Te3_T_FW.
Mentions: Further insight was gained regarding the morphologies and microstructures of the Au-Bi2Te3_T_FW, and the results are shown in Figure 2. From Figure 2a, we can find that the nanoparticles deposited on the surface of the HSAQS of T_FW. Moreover, the ridges and windows structures have been clearly maintained. As shown in Figure 2b,c, the Au-Bi2Te3 nanocomposites were deposited on the surface of the bio-template and agglomerated into a thin film. Furthermore, the deposition of Au-Bi2Te3 nanocomposites onto the T_FW was examined by X-ray diffraction (XRD). As revealed by the XRD results in Figure 2d, the diffraction peaks of Au-Bi2Te3_T_FW are assigned to the (111) plane of cubic phase Au (JCPDS card No. 04-0784, Gold, syn), and (006), (101), (015), (1,0,10), (110), (205), and (0,2,10) planes of rhombohedral phase Bi2Te3 (JCPDS card No. 08-0027, Tellurobismuthite). Figure 2e is the selected area electron diffraction (SAED) image that displays ring and dot patterns corresponding to the major and minor phases in the product, respectively. The clear rings match well with the XRD results, and the relevant planes are indexed as (015) and (205) planes of the Bi2Te3, and (111) plane of Au, respectively. The lattice fringes with interplanar distance of dAu(111) = 0.24 nm and dBi2Te3(015) = 0.32 nm are exhibited in the high resolution transmission electron microscope (HRTEM) image, which agrees with the results of the JCPDS card No. 04-0784 and JCPDS card No. 08-0027. These results further confirm the successful fabrication of the Au-Bi2Te3_T_FW.

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