Screen Printable Flexible BiTe–SbTe-Based Composite Thermoelectric Materials on Textiles for Wearable Applications

Cao, Zhuo; Tudor, John; Torah, Russel; Beeby, Steve

doi:10.1109/ted.2016.2603071

Cited by 66 publications

(38 citation statements)

References 16 publications

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“…In contrast to two-dimensional TEGs 38,[40][41][42][43][44][45][46][47][48][49][50][51][52][53][54] performing along in-plane direction, three-dimensional deformable TEGs (3D-TEGs) 34,35,[55][56][57][58][59][60][61][62] with vertical aligned TE units can utmostly utilize the body-environment temperature gradient vertical to body skin direction. In contrast to flexible inorganic TEGs 34,36,41,44,51,56,59,60,62,63 , the soft and skincompatible organic thermoelectric textiles (TETs) 35,38,41,46,50,64 are very promising as well for the out-of-plane thermal energy harvesting, owing to their abundant sources, low density, intrinsic flexibility, processability and conformability with fabrics.…”

Section: Introductionmentioning

confidence: 99%

Carbon nanotube yarn based thermoelectric textiles for harvesting thermal energy and powering electronics

et al. 2020

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Wearable thermoelectric devices show promises to generate electricity in a ubiquitous, unintermittent and noiseless way for on-body applications. Threedimensional thermoelectric textiles (TETs) outperform other types in smart textiles owing to their out-of-plane thermoelectric generation and good structural conformability with fabrics. Yet, there has been lack of efficient strategies in scalable manufacture of TETs for sustainably powering electronics. Here, we fabricate organic spacer fabric shaped TETs by knitting carbon nanotube yarn based segmented thermoelectric yarn in large scale. Combing finite element analysis with experimental evaluation, we elucidate that the fabric structure significantly influences the power generation. The optimally designed TET with good wearability and stability shows high output power density of 51.5 mW/m 2 and high specific power of 173.3 µW/(g·K) at ∆T= 47.5 K. The promising on-body applications of the TET in directly and continuously powering electronics for healthcare and environmental monitoring is fully demonstrated. This work will broaden the research vision and provide new routines for developing high-performance and large-scale TETs toward practical applications.

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Section: Introductionmentioning

confidence: 99%

Carbon nanotube yarn based thermoelectric textiles for harvesting thermal energy and powering electronics

et al. 2020

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“…A small portion of this power will be sufficient to drive many kinds of portable devices. Photovoltaic textiles [2][3][4], textile-based thermoelectric [5][6][7] and piezoelectric generators [8][9][10] have been proposed as wearable harvesters. However, they are not robust and often impractical in real applications.…”

Section: Introductionmentioning

confidence: 99%

Recent progress on textile-based triboelectric nanogenerators

2019

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Triboelectric nanogenerators (TENG) are one of the most promising candidates for powering wearable and portable devices. Example TENGs have demonstrated flexibility, light weight, biocompatibility, versatility and good performance. Textiles are a potential substrate onto, or into, which wearable technology is increasingly being incorporated but supplying power remains an enduring challenge. TENGs are a potential textile based mechanical energy harvesting power supply and there has been an increasing effort to combine TENGs with fabrics. A significant challenge exists in the integration without losing the performance of the TENG or the original properties (appearance, breathability, washability, and durability) and feel of the textile. Various approaches towards the realisation of textile-based TENGs (T-TENGs) have been demonstrated. Depending on its structure, T-TENGs can be divided into two main types, fabric-based TENG and fibre-based TENG. The fabric-based TENG is composed of conventional and/or modified fabrics, which serve as a substrate and/or a triboelectric material. The fibre-based TENG is fabricated as a single fibre or a collection of interlaced fibres. This paper provides an up to date review of the progress in the research of T-TENGs. The paper covers the basic operating principles, possible operation modes, textile manufacturing methods, material selections, T-TENG fabrication process, surface modification and structural designs. Issues, such as standardised measurement parameters, the challenges and limitations of T-TENG are discussed.

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“…25 One example used inorganic thermoelectric materials mixed with a polymer binder to form a screen-printable paste. 26 The ratio of the ingredients is important to achieve a balance between flexibility and performance. When using an epichlorohydrin polyglycol-based epoxy binder, it was found that for Bi 1 respectively, which are close to the values of bulk materials and therefore very promising.…”

Section: Piezoelectric Filmsmentioning

confidence: 99%