Highly stable n-type thermoelectric materials fabricated <i>via</i> electron doping into inkjet-printed carbon nanotubes using oxygen-abundant simple polymers

Horike, Shohei; Fukushima, Tatsuya; Saito, Tetsuya; Kuchimura, Takuya; Koshiba, Yasuko; Morimoto, Masahiro; Ishida, Kenji

doi:10.1039/c7me00063d

Cited by 44 publications

(26 citation statements)

References 38 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The authors reported that the prepared n type TE films achieved the highest power factor of 1500 µW/mK 2 with 1 wt.% PEI content. Likewise, Horike et al [93] switched a p type SWCNT into an n type by polymer doping. Thus, four different polymer solutions, including poly(vinyl chloride) (PVC) , poly(vinyl pyrrolidone) (PVP), poly(vinyl alcohol) (PVA) and poly(vinyl acetate) (PVAc) were drop casted over p type SWCNT thin films as electron donors.…”

Section: N Type Carbon Based Te Compositesmentioning

confidence: 99%

A review on recent developments of thermoelectric materials for room-temperature applications

Soleimani

Zoras

Ceranic

et al. 2020

Sustainable Energy Technologies and Assessments

111

View full text Add to dashboard Cite

show abstract

Section: N Type Carbon Based Te Compositesmentioning

confidence: 99%

A review on recent developments of thermoelectric materials for room-temperature applications

Soleimani

Zoras

Ceranic

et al. 2020

Sustainable Energy Technologies and Assessments

111

View full text Add to dashboard Cite

show abstract

“…In the case of PVP-NOGF, the naturally high HOMO level of the polymer has been reported to induce electron donation in both graphene [18,22] and CNTs. [28] However, further study would be needed to confirm the exact charge-transfer mechanisms.…”

Section: Synthesis and Characterization Of Pba-nogfmentioning

confidence: 99%

Complementary n‐Type and p‐Type Graphene Films for High Power Factor Thermoelectric Generators

Novak

Kim

et al. 2020

Adv Funct Materials

View full text Add to dashboard Cite

Solution-phase exfoliated graphene has always been an attractive material for flexible thermoelectric applications, but traditional oxidative routes suffer from poor flake quality and a lack of quality doping techniques to make complementary n-type and p-type films. Here, it is demonstrated that by changing the adsorbed surfactant during the intercalation-exfoliation process (polyvinylpyrrolidone for n-type, pyrenebutyric acid for p-type), both extremely high electrical conductivity (3010 and 2330 S cm −1 ) and high Seebeck coefficients (53.1 and −45.5 µV K −1 ) can be achieved. The result is that both of these films show remarkable power factors, over 600 µW m −1 K −2 at room temperature, which is over an order of magnitude better than that in previous works demonstrating complementary n-type and p-type graphene thermoelectric films. Based on these films, a full all-graphene thermoelectric device is constructed as a proof of concept, where a peak power of 5.0 nW is recorded at a temperature difference of 50 K.

show abstract

“…PEO can provide electron carriers for polymer matrix as presented by Luo et al Similarly, diethylene glycol has been used as dopant to increase the electronic conductivity of poly(3,4‐dioxythiophene)‐polystyrene sulfonate . Oxygen‐abundant polymers, such as poly(vinyl alcohol) and poly(vinyl acetate), have been used to modify SWCNT preparing air‐stable n‐type SWCNT . Therefore, p–n transition is attributed to PEO chain segment.…”

Section: Resultsmentioning

confidence: 99%

Thermally Sensitive N‐Type Thermoelectric Aniline Oligomer‐Block‐Polyethylene Glycol‐Block‐Aniline Oligomer ABA Triblock Copolymers

Cheng

Zhang

et al. 2018

Macro Chemistry & Physics

View full text Add to dashboard Cite

High‐performance n‐type thermoelectric polymers are vital in the development of polymer thermoelectric generators (PTEGs). However, the progress is very slow due to their low stability and low thermoelectric properties. Here, aniline oligomer‐block‐polyethylene glycol‐block‐aniline oligomer (ANI)n‐b‐PEO‐b‐(ANI)n) (n = 4, 8, 16) are prepared and studied. The results indicate that the (ANI)n‐b‐PEO‐b‐(ANI)n show unique temperature sensitivity and switch from p‐type to n‐type when the temperature is above 300 K. Differential scanning calorimetry curves show that the Tg of the (ANI)n‐b‐PEO‐b‐(ANI)n is lower than 300 K, indicating that PEO segments of the (ANI)n‐b‐PEO‐b‐(ANI)n easily move above 300 K and have high flexibility. Temperature‐dependent Raman spectra confirm that there are strong interactions between PEO segments and aniline oligomers during the raising temperature, and PEO chains might provide plenty of negative charge at high temperature, which can convert the (ANI)n‐b‐PEO‐b‐(ANI)n into n‐type thermoelectric materials. To adjust the number of aniline unit, (ANI)8‐b‐PEO‐b‐(ANI)8 shows excellent n‐type characteristics with Seebeck coefficient as large as −1171 µV K−1 at 381 K. The strong interaction between PEO and aniline oligomers plays a dominant role in the n‐type thermoelectric performance of the triblock copolymers, which have potential application in the field of PTEGs and temperature sensors.

show abstract

Highly stable n-type thermoelectric materials fabricated via electron doping into inkjet-printed carbon nanotubes using oxygen-abundant simple polymers

Abstract: Single-walled carbon nanotubes (SWCNTs) are important candidates for flexible and non-toxic thermoelectric (TE) energy-harvesting devices because they have large Seebeck coefficients, good flexibility, and inkjet printability onto plastic substrates.

Cited by 44 publications

References 38 publications

A review on recent developments of thermoelectric materials for room-temperature applications

A review on recent developments of thermoelectric materials for room-temperature applications

Complementary n‐Type and p‐Type Graphene Films for High Power Factor Thermoelectric Generators

Thermally Sensitive N‐Type Thermoelectric Aniline Oligomer‐Block‐Polyethylene Glycol‐Block‐Aniline Oligomer ABA Triblock Copolymers

Contact Info

Product

Resources

About