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High Performance and Flexible Polyvinylpyrrolidone/Ag/Ag2Te Ternary Composite Film for Thermoelectric Power Generator
Meng, Qiufeng; Qiu, Yang; Cai, Kefeng; Ding, Yufei; Wang, Mengdi; Pu, Hongting; Yao, Qin; Chen, Lidong; He, Jiaqing
2019-09-11
Source PublicationACS APPLIED MATERIALS & INTERFACES
ISSN1944-8244
Volume11Issue:36Pages:33254
SubtypeArticle
AbstractIn 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.
Keywordthermoelectric flexible film Ag2Te polyvinylpyrrolidone generator
DOI10.1021/acsami.9b11217
Language英语
WOS Research AreaScience & Technology - Other Topics ; Materials Science
PublisherAMER CHEMICAL SOC
Citation statistics
Document Type期刊论文
Identifierhttp://ir.sic.ac.cn/handle/331005/26842
Collection中国科学院上海硅酸盐研究所
Recommended Citation
GB/T 7714
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.
APA 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.
MLA 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.
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