Chloride transport in conductive polymer films for an n-type thermoelectric platform

Kim, Byeonggwan; Hwang, Jong Un; Kim, Eunkyoung

doi:10.1039/c9ee02399b

Cited by 104 publications

(129 citation statements)

References 39 publications

Supporting

Mentioning

119

Contrasting

Order By: Relevance

“…[12,13] Sun et al developed very low band gap poly(Ni-ett) continuous large area thin films by using electrochemical deposition for n-type TE materials with high electrical conductivity of 220 S cm −1 and remarkable PF of 453 µW m −1 K −2 . [14] By introducing Cl − into PEDOT:PSS films, high negative S values of −18200 µV K −1 and a significant PF of 1700 µW m −1 K −2 were obtained by Kim et al [2] The Pei group developed a series of donor-acceptor (D-A) BDOPV-based conjugated polymers for high-performance n-type TE materials. [15][16][17][18] Peter Müller-Buschbaum et al achieved high power factor of (1.84 ± 0.13) µW m −1 K −2 using common n-type polymer of P(NDI2OD-T2) doped with N-DPBI.…”

Section: Ztmentioning

confidence: 99%

“…[ 14 ] By introducing Cl − into PEDOT:PSS films, high negative S values of −18200 µV K −1 and a significant PF of 1700 µW m −1 K −2 were obtained by Kim et al. [ 2 ] The Pei group developed a series of donor–acceptor (D–A) BDOPV‐based conjugated polymers for high‐performance n‐type TE materials. [ 15–18 ] Peter Müller‐Buschbaum et al.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Dichlorinated Dithienylethene‐Based Copolymers for Air‐Stable n‐Type Conductivity and Thermoelectricity

Han

Fan

Zhang

et al. 2020

Adv Funct Materials

View full text Add to dashboard Cite

Two donor–acceptor (D–A) polymers are obtained by coupling difluoro‐ and dichloro‐substituted forms of the electron‐deficient unit BDOPV and the relatively weak donor moiety dichlorodithienylethene (ClTVT). The conductivity and power factors of doped devices are different for the chlorinated and fluorinated BDOPV polymers. A high electron conductivity of 38.3 and 16.1 S cm−1 are obtained from the chlorinated and fluorinated polymers with N‐DMBI, respectively, and 12.4 and 2.4 S cm−1 are obtained from the chlorinated and fluorinated polymers with CoCp2, respectively, from drop‐cast devices. The corresponding power factors are 22.7, 7.6, 39.5, and 8.0 µW m−1 K−2, respectively. Doping of PClClTVT with N‐DMBI results in excellent air stability; the electron conductivity of devices with 50 mol% N‐DMBI as dopant remained up to 4.9 S m−1 after 222 days in the air, the longest for an n‐doped polymer stored in air, with a thermoelectric power factor of 9.3 µW m−1 K−2. However, the conductivity of PFClTVT‐based devices can hardly be measured after 103 days. These observations are consistent with morphologies determined by grazing incidence wide angle X‐ray scattering and atomic force microscopy.

show abstract

Section: Ztmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Dichlorinated Dithienylethene‐Based Copolymers for Air‐Stable n‐Type Conductivity and Thermoelectricity

Han

Fan

Zhang

et al. 2020

Adv Funct Materials

View full text Add to dashboard Cite

show abstract

“…Although inorganic semiconductors 4 and semi-metals 5,6 TE materials have been gained extensive exploration, they still suffer from several obstacles, such as poor flexibility, substantial production cost, the involving of toxic/scarce raw material and low thermopower (~μV K -1 ), impeding them from largescale application [7][8][9] . Recently, high ionic thermopower or Seebeck coefficient (Si) was found in the ionic conducting polymer gels (PGs) 8,[10][11][12][13] , providing a new route to improve TE performance and make TE technology more economically for future wide-scale application.…”

Section: Introductionmentioning

confidence: 99%

“…More importantly, the i-TE generators (i-TEGs) must connect pand n-type thermocouples to gain high performance, but most existing i-TE materials only have positive thermopowers, hampering the widespread of i-TEGs 8,10 . The n-type semiconductor materials could be easily obtained by doping with electron donors, but such an approach cannot apply for i-TE materials since the ionic Seebeck effect was generated by ions migration instead of electrons or holes.…”

Section: Introductionmentioning

confidence: 99%

Tailoring P-N Conversion in All-solid-state Polymer Composites with A Record Ionic Thermopower

Chi¹,

An²,

Qi³

et al. 2021

Preprint

View full text Add to dashboard Cite

All-solid-state organic polymer composites are promising ionic thermoelectric (i-TE) materials, however, the transition from aqueous to organic gelation always sacrifices their thermoelectric performance, especially the n-type thermopowers are severely unexplored, leaving the unrealized large-scale application of p-n integrated i-TE devices. Herein, we successfully developed all-solid-state PVDF-HFP/NaTFSI/PC (PhNP) with ultrahigh thermopower (Si) of +20 mV K-1. The experimental and molecular simulation results detailly specified the relationship between the interactions among ions and polymers and the highly enhanced thermopower. Meanwhile, a major scientific breakthrough in p-n conversion from +20 to -6 mV K-1 was achieved by incorporating tris(pentafluorophenyl)borane (TPFPB) to capture Na+ and TFSI- anions dominating the thermodiffusion process. As a result, an all-solid-state i-TE generator generated a high voltage over 2.6 V at ΔT=10 K and exhibited excellent cyclic stability under ambient air condition employing only 13 pairs of p-n couples, showing great potential for developing high-performance i-TE systems.

show abstract

“…The Seebeck value of the PEDOT:PSS film is reported to be 19.4 µV/K [14]. A recent study [15] shows that a remarkable increase of a Seebeck value can be reached of -18.2 mV/K by using a copper (II) chloride (CuCl 2 ) doping. In comparison with the low thermal conductivity of a only 0.4 W/mK [16] and good electrical conductivity (4380 s/cm) for film [17], PEDOT:PSS has become one of the most promising candidates for TE materials.…”

mentioning

confidence: 99%

A Self-Powered Flexible Thermoelectric Sensor and Its Application on the Basis of the Hollow PEDOT:PSS Fiber

et al. 2020

View full text Add to dashboard Cite

The thermoelectric (TE) fiber, based on poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS), which possesses good flexibility, a low cost, good environmental stability and non-toxicity, has attracted more attention due to its promising applications in energy harvesting. This study presents a self-powered flexible sensor based on the TE properties of the hollow PEDOT:PSS fiber. The hollow structure of the fiber was synthesized using traditional wet spinning. The sensor was applied to an application for finger touch, and showed both long-term stability and good reliability towards external force. The sensor had a high scalability and was simple to develop. When figures touched the sensors, a temperature difference of 6 °C was formed between the figure and the outside environment. The summit output voltages of the sensors with 1 to 5 legs gradually increased from 90.8 μV to 404 μV. The time needed for the output voltage to reach 90% of its peak value is only 2.7 s. Five sensors of legs ranging from 1 to 5 were used to assemble the selector. This study may provide a new proposal to produce a self-powered, long-term and stable skin sensor, which is suitable for wearable devices in personal electronic fields.

show abstract

Chloride transport in conductive polymer films for an n-type thermoelectric platform

Abstract: Cl− transport in a conductive polymer (CP) film was demonstrated for n-type thermoelectric (TE) harvesting.

Cited by 104 publications

References 39 publications

Dichlorinated Dithienylethene‐Based Copolymers for Air‐Stable n‐Type Conductivity and Thermoelectricity

Dichlorinated Dithienylethene‐Based Copolymers for Air‐Stable n‐Type Conductivity and Thermoelectricity

Tailoring P-N Conversion in All-solid-state Polymer Composites with A Record Ionic Thermopower

A Self-Powered Flexible Thermoelectric Sensor and Its Application on the Basis of the Hollow PEDOT:PSS Fiber

Contact Info

Product

Resources

About