Modifying carbon fiber fabric for flexible thermoelectric energy conversion

Weavable thermoelectrics: advances, controversies, and future developments

“…Similarly, SnS and SnSSe x (x = 0.05, 0.075, and 0.1) samples were synthesized through a hydrothermal method and coated onto carbon fabric using a drop-casting technique for flexible thermoelectric applications [185]. A S 2 σ of 1.56 µW m −1 K −2 was achieved for SnSSe 0.1 at 373 K. Other works also reported thermoelectric fabrics such as electrochemical polymerization of PEDOT on felt fabrics [180], worm-Like PEDOT: Tos-coated polypropylene (PP) fabrics [182], ordered Bi 2 Te 3 crystals anchored on carbon fiber networks [186], electrospraying CNTs on poly (lactic acid) (PLA) fabric [179], solvent-assisted synthesis of Ag 2 Se and Ag 2 S nanoparticles on carbon fabric [178], etc. Some works also focused on weaving thermoelectric fibers into 2D films for thermoelectric applications.…”

“…With the advancement of thermoelectric science and technology, the morphology of weavable thermoelectric materials has become diverse, and the research focus in this field continues to evolve. Generally, research focus areas in weavable thermoelectrics can be categorized as indicated by figure 2, including 1D fibers [42,43, and nanowires (NWs) [167,168], 2D thin films [169][170][171][172], 3D fabrics [173][174][175][176][177][178][179][180][181][182][183][184][185][186], device assembling [42,43,124], simulations [187,188], and integrations [189]. Among them, thermoelectric fibers with typical 1D macroscopic morphologies have garnered significant research attention.…”

“…Another research emphasis includes the design of substrates or supports that match woven thermoelectric fibers, such as common fabrics, flexible strings, and silicone. These support materials can serve solely as structural supports [173][174][175] or be thermoelectrically functionalized [176][177][178][179][180][181][182][183][184][185][186].…”

“…Fabrics used as flexible substrates can also be functionalized, especially for thermoelectric purposes, to further enhance the overall performance of W-TEDs. For example, common design approaches include modifying traditional wool or synthetic fabrics and depositing thermoelectric layers onto them using solution-based or deposition methods [176][177][178][179][180][181][182][183][184][185][186]. Additionally, some research explores the direct use of thermoelectric fabrics as 3D thermoelectric legs, functioning similarly to 1D weavable thermoelectric fibers.…”

Robustly Enhanced Seebeck Coefficient in the MXene/Organics/TiS2 Misfit Structure for Flexible Thermoelectrics

“…It is thus urgent to develop a safe, maintenance-free, and flexible power source that can realize self-powering in flexible electronics. , Thermoelectric (TE) materials can realize direct conversion between heat and electricity, possessing merits such as being silent, pollution emission-free, maintenance-free, and thus have been an alternative of clean energy source . The TE performance of materials can be evaluated by the dimensionless figure of merit, zT = S 2 σ T /κ, where S is the Seebeck coefficient, σ is the electrical conductivity, T is the absolute temperature, κ is the thermal conductivity, and S 2 σ is the power factor, which is the comprehensive indicator of electrical properties. , Accordingly, a high electrical conductivity and high Seebeck coefficient, but a low thermal conductivity, are expected for excellent TE performance.…”