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High performance n-type Ag2Se film on nylon membrane for flexible thermoelectric power generator.

ABSTRACT: Researches on flexible thermoelectric materials usually focus on conducting polymers and conducting polymer-based composites; however, it is a great challenge to obtain high thermoelectric properties comparable to inorganic counterparts. Here, we report an n-type Ag2Se film on flexible nylon membrane with an ultrahigh power factor ~987.4?±?104.1??Wm-1K-2 at 300?K and an excellent flexibility (93% of the original electrical conductivity retention after 1000 bending cycles around a 8-mm diameter rod). The flexibility is attributed to a synergetic effect of the nylon membrane and the Ag2Se film intertwined with numerous high-aspect-ratio Ag2Se grains. A thermoelectric prototype composed of 4-leg of the Ag2Se film generates a voltage and a maximum power of 18?mV and 460?nW, respectively, at a temperature difference of 30?K. This work opens opportunities of searching for high performance thermoelectric film for flexible thermoelectric devices.

SUBMITTER: Ding Y 

PROVIDER: S-EPMC6381183 | biostudies-literature | 2019 Feb

REPOSITORIES: biostudies-literature

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High performance n-type Ag<sub>2</sub>Se film on nylon membrane for flexible thermoelectric power generator.

Ding Yufei Y   Qiu Yang Y   Cai Kefeng K   Yao Qin Q   Chen Song S   Chen Lidong L   He Jiaqing J  

Nature communications 20190219 1

Researches on flexible thermoelectric materials usually focus on conducting polymers and conducting polymer-based composites; however, it is a great challenge to obtain high thermoelectric properties comparable to inorganic counterparts. Here, we report an n-type Ag<sub>2</sub>Se film on flexible nylon membrane with an ultrahigh power factor ~987.4 ± 104.1 μWm<sup>-1</sup>K<sup>-2</sup> at 300 K and an excellent flexibility (93% of the original electrical conductivity retention after 1000 bendin  ...[more]

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