High Performance and Flexible Polyvinylpyrrolidone/Ag/Ag2Te Ternary Composite Film for Thermoelectric Power Generator

Meng, Qiufeng1,2,3; Qiu, Yang4; Cai, Kefeng1; Ding, Yufei1; Wang, Mengdi2,5; Pu, Hongting1; Yao, Qin2; Chen, Lidong2; He, Jiaqing4

2019-09-11

10.1021/acsami.9b11217

ACS Applied Materials & Interfaces   影响因子和分区

1944-8244

1944-8252

In this work, polyvinylpyrrolidone (PVP) coated Ag-rich Ag2Te nanowires (NWs) were synthesized by a wet chemical method using PVP coated Te NWs as templates, and a flexible PVP/Ag/Ag2Te ternary composite film on a nylon membrane was prepared by vacuum assisted filtration, followed by heat treatment. TEM and STEM observations of the focused ion beam prepared sample reveal that the composite film shows a porous network-like structure and that the Ag and Ag2Te exist as nanoparticles and NWs, respectively, both bonded with PVP. The Ag nanoparticles are formed by separation of the Ag-rich Ag2Te NWs during the heat treatment. For the composite film starting from a Ag/Te initial molar ratio of 6:1, a high power factor of 216.5 mu W/mK(2) is achieved at 300 K, and it increases to 370.1 mu W/mK(2) at 393 K. Bending tests demonstrate excellent flexibility of the hybrid film. A thermoelectric (TE) prototype composed of five legs of the hybrid film is assembled, and a maximum output power of 469 nW is obtained at a temperature gradient of 39.6 K, corresponding to a maximum power density of 341 mu W/cm(2). This work provides an effective route to a composite film with high TE performance and excellent flexibility for wearable TE generators.

thermoelectric flexible film Ag2Te polyvinylpyrrolidone generator

SCI ; EI

英语

通讯

Innovation Commission of Shenzhen Municipality[KQTD2016022619565991] ; Innovation Commission of Shenzhen Municipality[KQCX20150331-10182370]

Science & Technology - Other Topics ; Materials Science

Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary

WOS:000486360500071

AMER CHEMICAL SOC

20194107509204

Bending tests ; Film preparation ; Heat treatment ; Ion beams ; Microfiltration ; Molar ratio ; Nanoparticles ; Silver compounds ; Silver nanoparticles ; Thermoelectric power ; Wearable technology

Strength of Building Materials; Test Equipment and Methods:422 ; Heat Treatment Processes:537.1 ; Semiconducting Materials:712.1 ; Nanotechnology:761 ; Chemical Operations:802.3 ; High Energy Physics:932.1 ; Solid State Physics:933

Web of Science

1.Tongji Univ, Sch Mat Sci & Engn, Minist Educ, Key Lab Adv Civil Engn Mat, 4800 Caoan Rd, Shanghai 201804, Peoples R China
2.Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, Shanghai 200050, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.Southern Univ Sci & Technol, Phys Dept, 1088 XueYuan Ave, Shenzhen 518055, Peoples R China
5.Shanghai Tech Univ, 393 Huaxia Rd, Shanghai 201210, Peoples R China

Meng, Qiufeng,Qiu, Yang,Cai, Kefeng,et al. High Performance and Flexible Polyvinylpyrrolidone/Ag/Ag2Te Ternary Composite Film for Thermoelectric Power Generator[J]. ACS Applied Materials & Interfaces,2019,11(36):33254-33262.

Meng, Qiufeng.,Qiu, Yang.,Cai, Kefeng.,Ding, Yufei.,Wang, Mengdi.,...&He, Jiaqing.(2019).High Performance and Flexible Polyvinylpyrrolidone/Ag/Ag2Te Ternary Composite Film for Thermoelectric Power Generator.ACS Applied Materials & Interfaces,11(36),33254-33262.

Meng, Qiufeng,et al."High Performance and Flexible Polyvinylpyrrolidone/Ag/Ag2Te Ternary Composite Film for Thermoelectric Power Generator".ACS Applied Materials & Interfaces 11.36(2019):33254-33262.