Effect of particle-size distribution and pressure-induced densification on the microstructure and properties of printable thermoelectric composites and high energy density flexible devices

Banerjee, Priyanshu; Huang, Junfeng; Ambade, Rohan B.; Jang, Eunhwa; Saeidi‐Javash, Mortaza; Zhang, Yanliang; Madan, Deepa

doi:10.1016/j.nanoen.2021.106482

Cited by 12 publications

(20 citation statements)

References 70 publications

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“…Commercially available 100 mesh (a combination of micro-and nanometer-sized TE particles) n-type BTS and p-type BST TE powders were used to fabricate and characterize TE films [36][37][38][39]. An ink was synthesized by combining the TE powder with 0.5 wt.…”

Section: Experimental Methods 21 Te Film Fabrication and Measurementsmentioning

confidence: 99%

“…These inks were then stencil printed onto Kevlar substrates using a customized stencil-printing mask (10 mm × 10 mm) and cured at 120 • C for 5 min until the solvent was evaporated. The resulting films were then hot-pressed for 30 min at 200 MPa and 200 • C using a Rosin Hot-press (TEGRIDY-3×10, Cannabis Hardware, Boynton Beach, FL, USA) [36][37][38][39]. The difference between the thickness of the substrate and the whole thickness was calculated using a Vernier caliper (293-340-30, Mitutoyo, Tokyo, Japan).…”

Section: Experimental Methods 21 Te Film Fabrication and Measurementsmentioning

confidence: 99%

“…The average TE composite film shows a thickness of ~250 µm. A custom-built high-temperature Seebeck measuring setup was used to measure the Seebeck coefficient of the fabricated TE composite films at high temperatures [36,38]. A Hall Effect measurement system (HMS-5500, ECOPIA, Neveda, Chandler Heights, Chandler, AZ, USA) was used to measure the in-plane, high-temperature electrical conductivity of the films.…”

Section: Experimental Methods 21 Te Film Fabrication and Measurementsmentioning

confidence: 99%

“…Moreover, limited research has been performed on the varied shapes of flexible TEGs, e.g., circular or radial TEG devices, which can be used around waste heat pipes [25]. Therefore, to achieve widespread adoption of cost-effective and high-performance printed radial TEGs, it is important to implement a low thermal budget (low-temperature and short-curing duration) using additive manufacturing techniques [30][31][32][33][34][35][36][37][38][39].…”

Section: Introductionmentioning

confidence: 99%

“…In our previous work, we developed an energy-efficient curing method to stencil print a planar TEG device using [36][37][38]. The objective is to eliminate the high temperature and long-duration curing of the thermoelectric composites and TEGs and fabricate a highperformance radial TEG using a low thermal budget method, potentially used near waste heat pipes.…”

Section: Introductionmentioning

confidence: 99%

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Stencil-Printed Scalable Radial Thermoelectric Device Using Sustainable Manufacturing Methods

Jang,

Ambade,

Banerjee

et al. 2024

Sustainability

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In this study, we used n-chitosan-Bi2Te2.7Se0.3 and p-chitosan-Bi0.5Sb1.5Te3 composite inks to print a circular thermoelectric generator (TEG) device using a low-energy-input curing method. Thermoelectric (TE) composite films were fabricated using varying sizes of thermoelectric particles and a small chitosan binder (0.05 wt. %). The particles and binder were hot pressed at an applied pressure of 200 MPa and cured at 200 °C for 30 min. We achieved ZT of 0.35 for the n-type and 0.7 for the p-type TE composite films measured at room temperature. A radial TEG was fabricated using the best-performing n-type and p-type composite inks and achieved a power output of 87 µW and a power density of 727 µW/cm2 at a temperature difference of 35 K; these are among the best-reported values for printed TEG devices. Using a low-energy-input fabrication method, we eliminated the need for high-temperature and long-duration curing processes to fabricate printing devices. Thus, we envisage that the low-energy-input curing process and cost-effective printable strategy presented in this work pave the way for sustainable manufacturing of large-scale energy harvesting TEG devices.

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Section: Experimental Methods 21 Te Film Fabrication and Measurementsmentioning

confidence: 99%

Section: Experimental Methods 21 Te Film Fabrication and Measurementsmentioning

confidence: 99%

Section: Experimental Methods 21 Te Film Fabrication and Measurementsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Stencil-Printed Scalable Radial Thermoelectric Device Using Sustainable Manufacturing Methods

Jang,

Ambade,

Banerjee

et al. 2024

Sustainability

Self Cite

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Ultrahigh thermoelectric properties of p‐type Bi_xSb_2−xTe₃ thin films with exceptional flexibility for wearable energy harvesting

Zheng,

Zhong,

et al. 2024

Carbon Energy

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Use of a flexible thermoelectric source is a feasible approach to realizing self‐powered wearable electronics and the Internet of Things. Inorganic thin films are promising candidates for fabricating flexible power supply, but obtaining high‐thermoelectric‐performance thin films remains a big challenge. In the present work, a p‐type BixSb2−xTe3 thin film is designed with a high figure of merit of 1.11 at 393 K and exceptional flexibility (less than 5% increase in resistance after 1000 cycles of bending at a radius of ∼5 mm). The favorable comprehensive performance of the BixSb2−xTe3 flexible thin film is due to its excellent crystallinity, optimized carrier concentration, and low elastic modulus, which have been verified by experiments and theoretical calculations. Further, a flexible device is fabricated using the prepared p‐type BixSb2−xTe3 and n‐type Ag2Se thin films. Consequently, an outstanding power density of ∼1028 μW cm−2 is achieved at a temperature difference of 25 K. This work extends a novel concept to the fabrication of high‐performance flexible thin films and devices for wearable energy harvesting.

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Thermoelectric Materials and Devices for Advanced Biomedical Applications

Jia,

Ma,

Gao

et al. 2024

Small

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Thermoelectrics (TEs), enabling the direct conversion between heat and electrical energy, have demonstrated extensive application potential in biomedical fields. Herein, the mechanism of the TE effect, recent developments in TE materials, and the biocompatibility assessment of TE materials are provided. In addition to the fundamentals of TEs, a timely and comprehensive review of the recent progress of advanced TE materials and their applications is presented, including wearable power generation, personal thermal management, and biosensing. In addition, the new‐emerged medical applications of TE materials in wound healing, disease treatment, antimicrobial therapy, and anti‐cancer therapy are thoroughly reviewed. Finally, the main challenges and future possibilities are outlined for TEs in biomedical fields, as well as their material selection criteria for specific application scenarios. Together, these advancements can provide innovative insights into the development of TEs for broader applications in biomedical fields.

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Effect of particle-size distribution and pressure-induced densification on the microstructure and properties of printable thermoelectric composites and high energy density flexible devices

Cited by 12 publications

References 70 publications

Stencil-Printed Scalable Radial Thermoelectric Device Using Sustainable Manufacturing Methods

Stencil-Printed Scalable Radial Thermoelectric Device Using Sustainable Manufacturing Methods

Ultrahigh thermoelectric properties of p‐type Bi_xSb_2−xTe₃ thin films with exceptional flexibility for wearable energy harvesting

Thermoelectric Materials and Devices for Advanced Biomedical Applications

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Effect of particle-size distribution and pressure-induced densification on the microstructure and properties of printable thermoelectric composites and high energy density flexible devices

Cited by 12 publications

References 70 publications

Stencil-Printed Scalable Radial Thermoelectric Device Using Sustainable Manufacturing Methods

Stencil-Printed Scalable Radial Thermoelectric Device Using Sustainable Manufacturing Methods

Ultrahigh thermoelectric properties of p‐type BixSb2−xTe3 thin films with exceptional flexibility for wearable energy harvesting

Thermoelectric Materials and Devices for Advanced Biomedical Applications

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Product

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Ultrahigh thermoelectric properties of p‐type Bi_xSb_2−xTe₃ thin films with exceptional flexibility for wearable energy harvesting