Thermoelectric all-carbon heterostructures for a flexible thermoelectric generator

High-performance thermoelectric all-carbon heterostructures are investigated. The carbon nanoparticle barrier between carbon nanotubes can enhance the thermoelectric performance due to the energy filtering effect.

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High-Performance n-Type Carbon Nanotubes Doped by Oxidation of Neighboring Sb2Te3 for a Flexible Thermoelectric Generator

ACS Applied Materials & Interfaces ◽

10.1021/acsami.0c12766 ◽

2020 ◽

Vol 12 (39) ◽

pp. 43778-43784

Author(s):

Sohee Kim ◽

Jun-Hyun Mo ◽

Kwang-Suk Jang

Keyword(s):

Carbon Nanotubes ◽

High Performance ◽

Thermoelectric Generator ◽

Flexible Thermoelectric

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Tuning SnSe/SnS hetero-interfaces to enhance thermoelectric performance

Functional Materials Letters ◽

10.1142/s1793604718500698 ◽

2018 ◽

Vol 11 (04) ◽

pp. 1850069 ◽

Cited By ~ 3

Author(s):

Xuerui Liu ◽

Shuankui Li ◽

Tinyang Liu ◽

Weiming Zhu ◽

Rui Wang ◽

...

Keyword(s):

Thermal Conductivity ◽

Thermoelectric Materials ◽

High Performance ◽

Multiple Scales ◽

Phonon Transport ◽

Thermoelectric Performance ◽

Energy Filtering ◽

Promising Strategy ◽

Filtering Effect ◽

Heterogeneous Nanostructure

With the development of nanotechnology, thermoelectric materials with complex heterogeneous nanostructure offer a promising approach to improve the thermoelectric performance. In this work, SnSe/SnS hetero-nanosheet was tuned by the epitaxial growth of SnSe on the few layers of SnS nanosheets. The heterojunction interface can optimize the carrier/phonon transport behavior by energy filtering effect and scattering the phonon in multiple scales. Compared with pristine SnSe, the power factor of SnSe/SnS hetero-nanosheet increases from 2.2[Formula: see text][Formula: see text]V/cmK2 to 3.21[Formula: see text][Formula: see text]V/cmK2 at 773[Formula: see text]K, whereas the thermal conductivity decreases significantly from 0.65[Formula: see text]W[Formula: see text][Formula: see text][Formula: see text]m[Formula: see text] to 0.48[Formula: see text]W[Formula: see text][Formula: see text][Formula: see text]m[Formula: see text] at 773[Formula: see text]K. The maximum ZT of 0.5 is obtained at 773[Formula: see text]K in the SnSe/SnS hetero-nanosheets, which is 89% higher than pristine SnSe. This approach is proved to be a promising strategy to design high performance thermoelectric materials.

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Covalent interactions between carbon nanotubes and P3HT by thiol–ene click chemistry towards improved thermoelectric performance

Materials Chemistry Frontiers ◽

10.1039/d0qm00004c ◽

2020 ◽

Vol 4 (4) ◽

pp. 1174-1181

Author(s):

Chunyan Zhao ◽

Xinglong Wang ◽

Xin Chen ◽

Ying Liu ◽

Yannan Xie ◽

...

Keyword(s):

Carbon Nanotubes ◽

Carbon Nanotube ◽

Click Chemistry ◽

Thermoelectric Generator ◽

Click Reaction ◽

Multiwalled Carbon Nanotube ◽

Thermoelectric Performance ◽

Multiwalled Carbon ◽

Flexible Thermoelectric ◽

Covalent Interactions

Covalently connected multiwalled carbon nanotube/poly(3-hexylthiophene) nanocomposites via a thiol–ene click reaction show improved thermoelectric performance for their use in a flexible thermoelectric generator.

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Enhanced thermoelectric performance of Bi–Sb–Te/Sb2O3 nanocomposites by energy filtering effect

Journal of Materials Chemistry A ◽

10.1039/c8ta08238c ◽

2018 ◽

Vol 6 (43) ◽

pp. 21341-21349 ◽

Cited By ~ 43

Author(s):

Amir Pakdel ◽

Quansheng Guo ◽

Valeria Nicolosi ◽

Takao Mori

Keyword(s):

Thermal Conductivity ◽

Seebeck Coefficient ◽

Thermoelectric Performance ◽

Energy Filtering ◽

Filtering Effect

24 month high-ZT stability of Bi0.5Sb1.5Te3/Sb2O3 nanocomposites that demonstrate simultaneous Seebeck coefficient enhancement and thermal conductivity decline through energy filtering effect.

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High-Performance Ag-Modified Bi0.5Sb1.5Te3 Films for the Flexible Thermoelectric Generator

ACS Applied Materials & Interfaces ◽

10.1021/acsami.9b21771 ◽

2020 ◽

Vol 12 (6) ◽

pp. 7358-7365 ◽

Cited By ~ 2

Author(s):

Hongjing Shang ◽

Taiguang Li ◽

Dan Luo ◽

Luo Yu ◽

Qi Zou ◽

...

Keyword(s):

High Performance ◽

Thermoelectric Generator ◽

Flexible Thermoelectric

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High-performance flexible thermoelectric generator by control of electronic structure of directly spun carbon nanotube webs with various molecular dopants

Journal of Materials Chemistry A ◽

10.1039/c7ta02509b ◽

2017 ◽

Vol 5 (30) ◽

pp. 15631-15639 ◽

Cited By ~ 38

Author(s):

Cheng Jin An ◽

Young Hun Kang ◽

Hyeonjun Song ◽

Youngjin Jeong ◽

Song Yun Cho

Keyword(s):

Electronic Structure ◽

Carbon Nanotube ◽

High Power ◽

Power Output ◽

High Performance ◽

Thermoelectric Generator ◽

High Power Output ◽

Treated Carbon ◽

Flexible Thermoelectric ◽

Thermally Treated

Thermally treated carbon nanotube webs for effective n-type doping are used for a flexible thermoelectric generator with a high power output.

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High-performance n-type Ta4SiTe4/polyvinylidene fluoride (PVDF)/graphdiyne organic-inorganic flexible thermoelectric composites

Energy & Environmental Science ◽

10.1039/d1ee02552j ◽

2021 ◽

Author(s):

Sanyin Qu ◽

Chen Ming ◽

Pengfei Qiu ◽

Kunqi Xu ◽

Qing Xu ◽

...

Keyword(s):

Carbon Nanotubes ◽

Polyvinylidene Fluoride ◽

High Performance ◽

The Past ◽

P Type ◽

Flexible Thermoelectric

In the past decade, the development of high-performance p-type flexible organic-inorganic thermoelectric composites based on nanocarbons (e.g. carbon nanotubes and graphene) has achieved unprecedented success, but the progress in n-type...

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Effect of crystal size distribution on thermoelectric performance for Lanthanum-doped strontium titanate bulk material

Functional Materials Letters ◽

10.1142/s1793604715500708 ◽

2015 ◽

Vol 08 (06) ◽

pp. 1550070

Author(s):

Boyu Zhang ◽

Jun Wang ◽

Xinba Yaer ◽

Zhenzhen Huo ◽

Yin Wu ◽

...

Keyword(s):

Size Distribution ◽

Strontium Titanate ◽

Crystal Size ◽

Bulk Material ◽

Crystal Size Distribution ◽

Thermoelectric Performance ◽

Potential Barriers ◽

Seebeck Coefficients ◽

Energy Filtering ◽

Filtering Effect

Effect of crystal size distribution on thermoelectric performance of Lanthanum-doped strontium titanate ( La - SrTiO 3) ceramics are investigated in this study. Thermoelectric performance measurement, coupled with microstructure studies, shows that the electrical conductivity strongly depends on the crystal size, potential barrier on the grain boundary and porosity. Meantime, because the average potential barriers height are increased along with the reduction of crystal size, the Seebeck coefficients are increased by energy filtering effect at the large number of grain boundaries. As a result, by controlling of crystal size distribution, ZT value of La - SrTiO 3 is improved.

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