Double doping approach for unusually stable and large n-type thermoelectric voltage from p-type multi-walled carbon nanotube mats

被引:46
作者
Hu, Qiujun [1 ]
Lu, Zhongxu [3 ]
Wang, Yizhuo [1 ]
Wang, Jing [1 ]
Wang, Hong [1 ,2 ]
Wu, Ziping [3 ]
Lu, Guanghao [1 ]
Zhang, Hao-Li [4 ]
Yu, Choongho [5 ]
机构
[1] Xi An Jiao Tong Univ, Frontier Inst Sci & Technol, Xian 710054, Peoples R China
[2] Xi An Jiao Tong Univ, State Key Lab Multiphase Flow Power Engn, Xian 710054, Peoples R China
[3] Jiangxi Univ Sci Technol, Sch Mat Sci & Engn, Ganzhou 341000, Peoples R China
[4] Lanzhou Univ, Coll Chem & Chem Engn, State Key Lab Appl Organ Chem SKLAOC, Lanzhou 730000, Peoples R China
[5] Texas A&M Univ, Mech Engn Dept, College Stn, TX 77843 USA
基金
中国国家自然科学基金; 新加坡国家研究基金会;
关键词
HIGH-PERFORMANCE; ELECTRICAL-CONDUCTIVITY; CHARGE-TRANSFER; COMPOSITES; POWER; POLYMER; FABRICATION; TRANSPORT; MODULES; THERMOPOWER;
D O I
10.1039/d0ta03247f
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Multi-walled carbon nanotubes (MWCNTs) have shown low n-type Seebeck coefficients (-10 mu V K-1), which are not good enough to prepare high performance low-cost MWCNT based mechanically flexible thermoelectric devices. Here, we present a double doping approach utilizing a small n-type doping molecule, 1,3-dimethyl-2-phenyl-2,3-dihydro-1H-benzimidazole (N-DMBI), in addition to encapsulated metal (iron) nanoparticles for achieving a high n-type thermoelectric performance with MWCNTs. With double doping, we have shown high n-type Seebeck coefficients up to -56 mu V K(-1)along with a power factor up to 112 mu W m(-1)K(-2)at room temperature, which, to the best of our knowledge, is at least an order of magnitude higher than the power factors of previously reported n-type MWCNT based organic materials. More importantly, the negative Seebeck coefficient was maintained even after 60 days' exposure to air. An outstanding output power of 1.9 W m(-2)at a temperature difference of 60 K was generated with a flexible thermoelectric device made of only MWCNT mats. The new findings could lead to the development of robust and flexible thermoelectric devices made of only low-cost MWCNTs.
引用
收藏
页码:13095 / 13105
页数:11
相关论文
共 73 条
[1]   Fabrication of open-cell thermoelectric polymer nanocomposites by template-assisted multi-walled carbon nanotubes coating [J].
Aghelinejad, Mohammadmehdi ;
Leung, Siu N. .
COMPOSITES PART B-ENGINEERING, 2018, 145 :100-107
[2]   Impact of the substrate on the efficiency of thin film thermoelectric technology [J].
Alvarez-Quintana, J. .
APPLIED THERMAL ENGINEERING, 2015, 84 :206-210
[3]   Thermoelectric power of aligned and randomly oriented carbon nanotubes [J].
Baxendale, M ;
Lim, KG ;
Amaratunga, GAJ .
PHYSICAL REVIEW B, 2000, 61 (19) :12705-12708
[4]   Resolving surface chemical states in XPS analysis of first row transition metals, oxides and hydroxides: Cr, Mn, Fe, Co and Ni [J].
Biesinger, Mark C. ;
Payne, Brad P. ;
Grosvenor, Andrew P. ;
Lau, Leo W. M. ;
Gerson, Andrea R. ;
Smart, Roger St. C. .
APPLIED SURFACE SCIENCE, 2011, 257 (07) :2717-2730
[5]   Strained endotaxial nanostructures with high thermoelectric figure of merit [J].
Biswas, Kanishka ;
He, Jiaqing ;
Zhang, Qichun ;
Wang, Guoyu ;
Uher, Ctirad ;
Dravid, Vinayak P. ;
Kanatzidis, Mercouri G. .
NATURE CHEMISTRY, 2011, 3 (02) :160-166
[6]   Thermoelectric composites of poly(3-hexylthiophene) and carbon nanotubes with a large power factor [J].
Bounioux, Celine ;
Diaz-Chao, Pablo ;
Campoy-Quiles, Mariano ;
Martin-Gonzalez, Marisol S. ;
Goni, Alejandro R. ;
Yerushalmi-Rozene, Rachel ;
Mueller, Christian .
ENERGY & ENVIRONMENTAL SCIENCE, 2013, 6 (03) :918-925
[7]   Is the intrinsic thermoelectric power of carbon nanotubes positive? [J].
Bradley, K ;
Jhi, SH ;
Collins, PG ;
Hone, J ;
Cohen, ML ;
Louie, SG ;
Zettl, A .
PHYSICAL REVIEW LETTERS, 2000, 85 (20) :4361-4364
[8]   Thermoelectrics of Nanowires [J].
Chen, Renkun ;
Lee, Jaeho ;
Lee, Woochul ;
Li, Deyu .
CHEMICAL REVIEWS, 2019, 119 (15) :9260-9302
[9]   Epidemiological Characteristics of Novel Influenza A (H1N1) in Antiviral Drug Users in Korea [J].
Choi, Kyunghi ;
Cho, Sung-il ;
Hashizume, Masahiro ;
Kim, Ho .
PLOS ONE, 2012, 7 (10)
[10]   Nonlinear behavior in the thermopower of doped carbon nanotubes due to strong, localized states [J].
Choi, YM ;
Lee, DS ;
Czerw, R ;
Chiu, PW ;
Grobert, N ;
Terrones, M ;
Reyes-Reyes, M ;
Terrones, H ;
Charlier, JC ;
Ajayan, PM ;
Roth, S ;
Carroll, DL ;
Park, YW .
NANO LETTERS, 2003, 3 (06) :839-842