Microstructure and thermoelectric properties of NaxCo2O4/Ag composite synthesized by the polymerized complex method

Ito, Mikio; Furumoto, Daisuke

doi:10.1016/j.jallcom.2006.12.081

Cited by 51 publications

(20 citation statements)

References 8 publications

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“…It could be caused by the uniform Ag doping in the samples or the electron-electron correlation [34]. With 10% Ag doping, Na x CoO 2 achieved the PF as high as 18.92 × 10 −4 W/mK 2 at~1100 K with the carrier density of~10 21 /cm 3 [35]. Compared with un-doped NaCoO 2 , other dopants (Y, Nd, Sr, Sm) have little effects on improving PF values [36], and some dopants (Ni, Yb) even have negative effects [36,37].…”

Section: Fundamental Physics Of Thermoelectric Metal Oxidesmentioning

confidence: 99%

Metal oxides for thermoelectric power generation and beyond

Feng

Jiang

Ghafari

et al. 2017

Adv Compos Hybrid Mater

119

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Metal oxides are widely used in many applications such as thermoelectric, solar cells, sensors, transistors, and optoelectronic devices due to their outstanding mechanical, chemical, electrical, and optical properties. For instance, their high Seebeck coefficient, high thermal stability, and earth abundancy make them suitable for thermoelectric power generation, particularly at a high-temperature regime. In this article, we review the recent advances of developing high electrical properties of metal oxides and their applications in thermoelectric, solar cells, sensors, and other optoelectronic devices. The materials examined include both narrow-band-gap (e.g., Na x CoO 2 , Ca 3 Co 4 O 9 , BiCuSeO, CaMnO 3 , SrTiO 3 ) and wide-band-gap materials (e.g., ZnO-based, SnO 2 -based, In 2 O 3 -based). Unlike previous review articles, the focus of this study is on identifying an effective doping mechanism of different metal oxides to reach a high power factor. Effective dopants and doping strategies to achieve high carrier concentration and high electrical conductivities are highlighted in this review to enable the advanced applications of metal oxides in thermoelectric power generation and beyond.

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Section: Fundamental Physics Of Thermoelectric Metal Oxidesmentioning

confidence: 99%

Metal oxides for thermoelectric power generation and beyond

Feng

Jiang

Ghafari

et al. 2017

Adv Compos Hybrid Mater

119

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“…doping) provides alternative route for further enhancing the TE properties. Extensive investigation has been carried out on the partial substitution of various elements either into the Na or Co sites [6][7][8][9][10][11][12][13][14][15][16][17][18][19]. The latter includes tri-and tetravalent ions [16][17][18][19], as well as divalent ions such as Zn 2+ , Ni 2+ and Pd 2+ [12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Power factor enhancement in Zn-doped Na0.8CoO2

Tsai

Zhang

Donelson

et al. 2011

Journal of Alloys and Compounds

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“…For example, the Seebeck coefficients of Na x Co 1−y T y O 2 (T = Cu, Ag, Au, Pd, Rh, Mn, Ru, Pb, etc.) [14][15][16][17] and (Na 1−y M y ) x CoO 2 (M = K, Sr, Y, Nd, Sm, Dy, Yb, etc.) [18,19] are studied.…”

Section: Introductionmentioning

confidence: 99%