Bi2Te3-based flexible thermoelectrics

Chen, Mengran; Mao, Zhendong; Ji, Yuru; Zong, Peng-an; Zhang, Qihao

doi:10.1016/j.mtener.2024.101643

Materials Today Energy

2024

DOI: 10.1016/j.mtener.2024.101643

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Bi2Te3-based flexible thermoelectrics

Mengran Chen,

Zhendong Mao,

Yuru Ji

et al.

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In situ Synthesized Staggered‐Layer‐Boosted Flexible Ag₂Se and Cu₂Se Thin Films for Wearable Thermoelectric Power Generators

Zhang,

Li,

Zhang

et al. 2024

Adv Funct Materials

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Flexible thermoelectric generators (TEGs) have been considered as a promising power source for rapidly developing wearable microelectronic devices, but how to integrate high‐performance materials and device design to prepare an available wearable TEGs is still challenging. In this study, n‐type silver selenide (Ag2Se) and p‐type copper selenide (Cu2Se) films are prepared by in situ full metal selenization strategy combined with screen‐printing technique, avoiding a high‐temperature process and expensive equipments. Further, a 3D structured thermoelectric module with 42 thermoelectric p‐n leg pairs is designed and configured by vertically embedding Ag₂Se and Cu₂Se thin films into a 4 mm‐thick silicone layer that provides insulation and structural support. The device consistently delivers power, achieving the maximum open‐circuit voltage of 113 mV at a temperature difference of 60 K, with a maximum power density of 234.3 µW cm−2. Under bending stress, the flexible TEG still has 81% retention rate of initial power density after 1500 bending cycles, indicating the good bending property. It can also generate a voltage of 3.6 and 7 mV, respectively, when worn on an arm with or without a fan expanding temperature difference. The work highlights a simple method to obtain efficient selenide thermoelectric films for cost‐effective flexible 3D structured TE devices.

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In situ Synthesized Staggered‐Layer‐Boosted Flexible Ag₂Se and Cu₂Se Thin Films for Wearable Thermoelectric Power Generators

Zhang,

Li,

Zhang

et al. 2024

Adv Funct Materials

View full text Add to dashboard Cite

show abstract

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Bi2Te3-based flexible thermoelectrics

Cited by 1 publication

References 176 publications

In situ Synthesized Staggered‐Layer‐Boosted Flexible Ag₂Se and Cu₂Se Thin Films for Wearable Thermoelectric Power Generators

In situ Synthesized Staggered‐Layer‐Boosted Flexible Ag₂Se and Cu₂Se Thin Films for Wearable Thermoelectric Power Generators

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Bi2Te3-based flexible thermoelectrics

Cited by 1 publication

References 176 publications

In situ Synthesized Staggered‐Layer‐Boosted Flexible Ag2Se and Cu2Se Thin Films for Wearable Thermoelectric Power Generators

In situ Synthesized Staggered‐Layer‐Boosted Flexible Ag2Se and Cu2Se Thin Films for Wearable Thermoelectric Power Generators

Contact Info

Product

Resources

About

In situ Synthesized Staggered‐Layer‐Boosted Flexible Ag₂Se and Cu₂Se Thin Films for Wearable Thermoelectric Power Generators

In situ Synthesized Staggered‐Layer‐Boosted Flexible Ag₂Se and Cu₂Se Thin Films for Wearable Thermoelectric Power Generators