Tuning Thermal Transport in Chain-Oriented Conducting Polymers for Enhanced Thermoelectric Efficiency: A Computational Study
文献类型：期刊论文
| 作者 | Shi, Wen1; Shuai, Zhigang1,2,3; Wang, Dong1 |
| 刊名 | ADVANCED FUNCTIONAL MATERIALS
 |
| 出版日期 | 2017-10-26 |
| 卷号 | 27期号:40 |
| 关键词 | Molecular Dynamics Simulations Thermal Transport Poly(3 Thermoelectrics 4-ethylenedioxythiophene) (Pedot) |
| 英文摘要 | Thermoelectric polymers should be electron-crystal and phonon-glass to efficiently interconvert heat and electricity. Herein, by using molecular dynamics simulations, it is demonstrated that engineering phonon transport in conducting polymers by tailoring its degree of polymerization can effectively improve the energy conversion efficiency. This is based on the separated length scales that charge carriers and phonons travel along the polymer backbone. By tuning the chain length and the crystallinity of chain-oriented poly(3,4-ethylenedioxythiophene) fibers, a dramatic decrease of the axial thermal conductivity to 0.97 W m(-1) K-1 has been observed in rationally designed polymer fibers with the crystallinity of 0.49 and the relative molecular weight of 5600. The dimensionless thermoelectric figure of merit at 298 K has been enhanced to 0.48, which is approximately one order of magnitude higher than that in crystalline polymers. |
| 语种 | 英语 |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/39118]  |
| 专题 | 化学研究所_其它 |
| 作者单位 | 1.Tsinghua Univ, Dept Chem, MOE Key Lab Organ OptoElect & Mol Engn, Beijing 100084, Peoples R China 2.Chinese Acad Sci, Inst Chem, BNLMS, Key Lab Organ Solids, Beijing 100190, Peoples R China 3.Xiamen Univ, Collaborat Innovat Ctr Chem Energy Mat, Xiamen 351005, Peoples R China |
| 推荐引用方式 GB/T 7714 | Shi, Wen,Shuai, Zhigang,Wang, Dong. Tuning Thermal Transport in Chain-Oriented Conducting Polymers for Enhanced Thermoelectric Efficiency: A Computational Study[J]. ADVANCED FUNCTIONAL MATERIALS,2017,27(40). |
| APA | Shi, Wen,Shuai, Zhigang,&Wang, Dong.(2017).Tuning Thermal Transport in Chain-Oriented Conducting Polymers for Enhanced Thermoelectric Efficiency: A Computational Study.ADVANCED FUNCTIONAL MATERIALS,27(40). |
| MLA | Shi, Wen,et al."Tuning Thermal Transport in Chain-Oriented Conducting Polymers for Enhanced Thermoelectric Efficiency: A Computational Study".ADVANCED FUNCTIONAL MATERIALS 27.40(2017). |
入库方式： OAI收割
来源：化学研究所
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