Xingyuan ZHOU, Wei LIU, Cheng ZHANG, Fuqiang HUA, Min ZHANG, Xianli SU, Xinfeng TANG. Optimization of Thermoelectric Transport Properties of Nb-doped Mo1-xWxSeTe Solid Solutions [J]. Journal of Inorganic Materials, 2020, 35(12): 1373
- Journal of Inorganic Materials
- Vol. 35, Issue 12, 1373 (2020)
1. XRD patterns of the prepared Mo1-x Wx SeTe (0≤x ≤0.5) solid solutions
2. Temperature dependent lattice thermal conductivities of Mo1-x Wx SeTe (0≤x ≤0.5)
3. Powder XRD patterns of the prepared Nb2y Mo0.5-y W0.5-y SeTe (0≤y ≤0.035) solid solutions
4. Temperature dependence of (a) electrical conductivity s , (b) Seebeck coefficient S and (c) power factor PF of Nb2y Mo0.5-y W0.5-y SeTe (0≤y ≤0.035) solid solutions with inset in (a) showing the impurity states introduced by the Nb doping.
5. Pisarenko plots for Nb2y Mo0.5-y W0.5-y SeTe (0≤y ≤0.035) samples compared with the reported data
6. Temperature dependent (a) thermal conductivity κ , (b) lattice thermal conductivity κ L and (c) figure of merit ZT for Nb2y Mo0.5-y W0.5-y SeTe (0≤y ≤0.035) solid solutions
S1. Powder XRD patterns of the prepared Mo1-x Wx SeTe (x =0.75 and 1)
S2. SEM fractured surface morphologies of Mo1-x Wx SeTe
S3. Temperature dependence of (a, d) electrical conductivity σ , (b, e) Seebeck coefficient S , and (c, f) thermal conductivity κ of Mo1-x Wx SeTe solid solutions (0≤x ≤0.5) measured along the ⊥P and //P directions
S4. Temperature dependence of (a) electrical conductivity σ , (b) Seebeck coefficient S , (c) power factor PF , (d) thermal conductivity κ , (e) lattice thermal conductivity κ L and (f) the ZT values of Nb2y Mo0.5-y W0.5-y SeTe (0≤y ≤0.035) solid solutions measured along the //P direction
S5. Comparison of thermoelectric properties along ⊥p and //P directions among Nb2y Mo0.5-y W0.5-y SeTe solid solutions with y =0.015 and 0.025 as well as Nb0.05Mo0.95SeTe and Ta0.05Mo0.95Se2 in the previous reports
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Table 1. 1 Compositions, cell parameters and optical band gaps of Mo1-xWxSeTe (0≤x≤0.5) solid solutions
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Table 1. Compositions and transport parameters of Nb2yMo0.5-yW0.5-ySeTe (0≤y≤0.035) solid solutions at room temperature
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Table 2. 2 LF factors of Mo1-xWxSeTe (0≤x≤0.5) solid solutions
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Table 3. 3 Compositions and cell parameters of Nb2yMo0.5-yW0.5-ySeTe (0≤y≤0.035) solid solutions
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