3D Printing of highly textured bulk thermoelectric materials: mechanically robust BiSbTe alloys with superior performance

Qiu, Junhao; Yan, Yonggao; Luo, Tingting; Tang, Kechen; Yao, Lei; Zhang, Jian; Zhang, Min; Su, Xianli; Tan, Gangjian; Xie, Hongyao; Kanatzidis, Mercouri G.; Uher, Ctirad; Tang, Xinfeng

doi:10.1039/c9ee02044f

Cited by 161 publications

(146 citation statements)

References 62 publications

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“…To date, Bi 2 Te 3 -based alloys are still the best roomtemperature TE materials, but their application in wearable electronics is limited due to their inherent brittleness [7][8][9][10][11][12][13][14]. In contrast, the organic TE polymers show good flexibility, but their zTs are low [15][16][17][18][19][20].…”

Section: Introductionmentioning

confidence: 99%

Crystalline Structure-Dependent Mechanical and Thermoelectric Performance in Ag2Se1‐xSx System

et al. 2020

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Self-powered wearable electronics require thermoelectric materials simultaneously with a high dimensionless figure of merit (zT) and good flexibility to convert the heat discharged by the human body into electricity. Ag2(S,Se)-based semiconducting materials can well satisfy these requirements, and thus, they are attracting great attention in thermoelectric society recently. Ag2(S,Se) crystalizes in an orthorhombic structure or monoclinic structure, depending on the detailed S/Se atomic ratio, but the relationship between its crystalline structure and mechanical/thermoelectric performance is still unclear to date. In this study, a series of Ag2Se1‐xSx (x=0, 0.1, 0.2, 0.3, 0.4, and 0.45) samples were prepared and their mechanical and thermoelectric performance dependence on the crystalline structure was systematically investigated. x=0.3 in the Ag2Se1‐xSx system was found to be the transition boundary between orthorhombic and monoclinic structures. Mechanical property measurement shows that the orthorhombic Ag2Se1‐xSx samples are brittle while the monoclinic Ag2Se1‐xSx samples are ductile and flexible. In addition, the orthorhombic Ag2Se1‐xSx samples show better electrical transport performance and higher zT than the monoclinic samples under a comparable carrier concentration, most likely due to their weaker electron-phonon interactions. This study sheds light on the further development of flexible inorganic TE materials.

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Section: Introductionmentioning

confidence: 99%

Crystalline Structure-Dependent Mechanical and Thermoelectric Performance in Ag2Se1‐xSx System

et al. 2020

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“…However, it is difficult to obtain complex shapes through conventional methods such as hot pressing, spark plasma sintering, and zone melting. 140 So far, SLA, 141 FDM, 142,143 SLS, 144 DIW, [145][146][147][148] SLM, [149][150][151][152] 3D printing technologies have been investigated for the preparation of TE devices.…”

Section: 52mentioning

confidence: 99%

“…This lays a solid foundation for rapid in situ 3D printing of Bi 2 Te 3based TE equipment. 152 In terms of realizing high TE conversion efficiency for flexible generators, 3D printing technology, such as DIW, SLS, and SLM, has a superior advantage. TE material itself suffers from a lack of mechanically robustness.…”

Section: 52mentioning

confidence: 99%

Current advances and future perspectives of additive manufacturing for functional polymeric materials and devices

Zhang

Kang

et al. 2021

SusMat

160

101

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Three-dimensional (3D) printing has received extensive attention due to its unique multidimensional functionality and customizability and has been recognized as one of the most revolutionary manufacturing technologies. Functional 3D printed products represent an important orientation for next-generation manufacturing and attract a great spotlight for the application in sensors, actuators, robots, electronics, and medical devices. However, the lack of functions of printing polymeric materials dramatically limits the development of functional 3D printing. Different from traditional processing, the physical properties, such as geometry and rheological behavior, of the polymeric materials must match the printing process, making the selection of printable materials limited. More importantly, challenges in large-scale production of such materials further stifle the development of functional 3D printing industry. In this review, we aim to outline recent advances in polymeric materials and methodologies for the functional 3D printing technology. The reports are classified based on functionalities, including electronic conductive, thermally conductive, electromagnetic interference shielding, energy storage, and energy harvesting materials. This study attempts to provide a comprehensive overview of the challenges and opportunities for 3D printing functional polymeric materials/devices, also seeks to enlighten the orientation of future research in this field.

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“…31,32 However, the complex 3D geometries of TE materials and modules have never been realized so far because the full functionality of 3D printing technology has yet not been applied to TE technology, though many approaches based on stereolithography, extrusion-based printing, and selective laser sintering have been reported to produce TE materials. [36][37][38][39][40][41][42] Moreover, in most reports, 3D-printable materials have still been limited to Bi 2 Te 3 -based materials, requiring the expansion of available materials operatable at high temperatures for the widespread applications of this technology. [37][38][39][40][41] Here, we designed the cellular honeycomb topology of Cu 2 Se TE legs by the 3D nite element models (FEMs) for higher power-generating performances and stronger mechanical stiffness than a typical cuboid.…”

Section: Introductionmentioning

confidence: 99%

“…[36][37][38][39][40][41][42] Moreover, in most reports, 3D-printable materials have still been limited to Bi 2 Te 3 -based materials, requiring the expansion of available materials operatable at high temperatures for the widespread applications of this technology. [37][38][39][40][41] Here, we designed the cellular honeycomb topology of Cu 2 Se TE legs by the 3D nite element models (FEMs) for higher power-generating performances and stronger mechanical stiffness than a typical cuboid. To fabricate the designed topology, we developed the extrusion-based 3D printing process of Cu 2 Se TE materials.…”

Section: Introductionmentioning

confidence: 99%

Cu2Se-based thermoelectric cellular architectures for efficient and durable power generation

Choo

Ejaz

et al. 2021

Preprint

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Thermoelectric (TE) power generation offers a promising way to recover waste heat. The geometrical design of TE legs in modules is important to ensure sustainable power generation but cannot be easily achieved by traditional fabrication processes. Herein, we propose the design of cellular TE architectures for efficient and durable power generation, realized by the extrusion-based 3D printing process of Cu2Se TE materials. We designed the optimum aspect ratio of a cuboid TE leg to maximize the power output and extended this design to the mechanically stiff cellular architectures of hollow hexagonal column- and honeycomb-based TE legs. Moreover, we developed organic binder-free Cu2Se-based 3D-printing inks with desirable viscoelasticity, tailored with an additive of inorganic Se82- polyanion, fabricating the designed topologies. The computational simulation and experimental measurement demonstrated the superior power output and mechanical stiffness of the proposed cellular TE architectures to other designs, unveiling the importance of topological designs of TE legs toward higher power and longer durability.

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3D Printing of highly textured bulk thermoelectric materials: mechanically robust BiSbTe alloys with superior performance

Abstract: P-BiSbTe bulk materials with high texture, superior thermoelectric properties and robust mechanical performance were fabricated by laser 3D printing.

Cited by 161 publications

References 62 publications

Crystalline Structure-Dependent Mechanical and Thermoelectric Performance in Ag2Se1‐xSx System

Crystalline Structure-Dependent Mechanical and Thermoelectric Performance in Ag2Se1‐xSx System

Current advances and future perspectives of additive manufacturing for functional polymeric materials and devices

Cu2Se-based thermoelectric cellular architectures for efficient and durable power generation

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