<abstract xmlns="http://www.w3.org/1999/xhtml"><p>In this paper, hydrothermal approach combined with high pressure sintering method was employed to synthesize PbS. The X-ray diffraction results show that single phase PbS can be obtained by a simple hydrothermal method. The scanning electron microscope results show that the PbS sample has nearly cubic shape and preserves well crystallized and coarse grains after high pressure sintering. The thermoelectric performance of PbS obtained in this study is comparable to that of a PbS sample prepared by conventional method. The carrier type and concentration of PbS can be tuned effectively by doping with Bi. The maximum figure of merit for PbS doped with 1 mol% Bi reaches 0.44 at 550 K, which is about 30 % higher than that of undoped PbS. These results indicate that hydrothermal method provides a viable and controllable way of tuning the electrical transport and thermoelectric properties for PbS.</p></abstract>

In this paper, hydrothermal approach combined with high pressure sintering method was employed to synthesize PbS. The X-ray diffraction results show that single phase PbS can be obtained by a simple hydrothermal method. The scanning electron microscope results show that the PbS sample has nearly cubic shape and preserves well crystallized and coarse grains after high pressure sintering. The thermoelectric performance of PbS obtained in this study is comparable to that of a PbS sample prepared by conventional method. The carrier type and concentration of PbS can be tuned effectively by doping with Bi. The maximum figure of merit for PbS doped with 1 mol% Bi reaches 0.44 at 550 K, which is about 30 % higher than that of undoped PbS. These results indicate that hydrothermal method provides a viable and controllable way of tuning the electrical transport and thermoelectric properties for PbS.

Hydrothermal synthesis and thermoelectric properties of PbS

Institute of Materials Science and Engineering, Henan Polytechnic University, Jiaozuo, 454000,

School of Physics and Chemistry, Henan Polytechnic University, Jiaozuo, 454000,

Shanghai Entry-Exit Inspection & Quarantine Bureau, Shanghai, 200135,

Materials Science-Poland

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

{"article-title":"Hydrothermal synthesis and thermoelectric properties of PbS"}

In this paper, hydrothermal approach combined with high pressure sintering method was employed to synthesize PbS. The X-ray diffraction results show that...

Sample	ρ [10 ⁻⁶Ω·cm]	a(10⁻¹⁶)	γ
PbS	67.55	2.68	10.82
Bi_0.01Pb_0.99S	11.43	4.82	6.12

Sample	Carrier concentration [10¹⁸ cm⁻³]	Hall mobility [cm²/V·s]	Hall coefficient R_H [cm⁻³]	Resistivity [10⁻³ Ω·cm]	Seebeck coefficient S [μV/K]
PbS	7.36	94.12	0.85	9.02	220.44
Bi_0.005Pb_0.995S	26.31	3.313	−0.24	71.61	−134.29
Bi_0.01Pb_0.99S	45.215	133.99	−0.14	1.03	−112.27
Bi_0.0l5Pb_0.985S	45.387	126.83	−0.14	1.08	−48.48

Hydrothermal synthesis and thermoelectric properties of PbS

Data publikacji: 19 lis 2016

Zakres stron: 754 - 759

Otrzymano: 24 sty 2016

Przyjęty: 28 sie 2016

DOI: https://doi.org/10.1515/msp-2016-0098

Słowa kluczowe
PbS, hydrothermal approach, thermoelectric performance, high pressure

© Wroclaw University of Technology

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

The values of ρ, a and γ obtained from the formula ρ = ρ0+aTγ.

Electrical transport properties of PbS and Bi doped PbS samples (BixPb1−xS) at room temperature.

Hydrothermal synthesis and thermoelectric properties of PbS

Data publikacji: 19 lis 2016

Zakres stron: 754 - 759

Otrzymano: 24 sty 2016

Przyjęty: 28 sie 2016

DOI: https://doi.org/10.1515/msp-2016-0098

Słowa kluczowePbS, hydrothermal approach, thermoelectric performance, high pressure

© Wroclaw University of Technology

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

The values of ρ, a and γ obtained from the formula ρ = ρ0+aTγ.

Electrical transport properties of PbS and Bi doped PbS samples (BixPb1−xS) at room temperature.

Słowa kluczowe
PbS, hydrothermal approach, thermoelectric performance, high pressure