Earth-abundant molybdenum disulfide(MoS_(2))shows a high application potential in thermoelectric(TE)field owing to its high Seebeck coefficient.However,the main obstacle to achieve high TE performance for the MoS_(2)m...Earth-abundant molybdenum disulfide(MoS_(2))shows a high application potential in thermoelectric(TE)field owing to its high Seebeck coefficient.However,the main obstacle to achieve high TE performance for the MoS_(2)material is its poor electrical conductivity.In this work,the flexible MoS_(2)/single-walled carbon nanotube(SWCNT)films with enhanced TE performance were fabricated via hydrothermal reaction,solution mixing,and subsequent vacuum filtration.The strong S-πinteraction and the energy filtering effect at the MoS_(2)/SWCNT interface produced an impressive power factor value of 107.99±4.98μW·m^(-1)·K^(-2)for the MoS_(2)/SWCNT composite films.In addition,the TE performance had high stability on bending deformation.Finally,at a temperature difference of 50 K,the assembled TE device of MoS_(2)/SWCNT films exhibited good output performance.This work provides a feasible reference to optimize the TE performance of MoS_(2)materials and demonstrates a high potential of flexible MoS_(2)-based composites in TE applications.展开更多
基金financial support from the Natural Science Foundation of Chongqing,China(No.CSTB2023NSCQ-MSX0602)Fundamental Research Funds for the Central Universities(No.SWU-KR22041 and SWU-XDJH202314)+2 种基金the Science and Technology Innovation and Venture Capital Special Projects of TIANDI Science Technology Co.Ltd(No.2023-TD-ZD014-004 and 2023-TD-QN012)CCTEG Chongqing Research Institute(No.2023ZDYF19)Xinjiang Uygur Autonomous Region Colleges and Universities Basic Scientific Research Operating Expenses Scientific Research Projects(No.XJEDU2023P113).
文摘Earth-abundant molybdenum disulfide(MoS_(2))shows a high application potential in thermoelectric(TE)field owing to its high Seebeck coefficient.However,the main obstacle to achieve high TE performance for the MoS_(2)material is its poor electrical conductivity.In this work,the flexible MoS_(2)/single-walled carbon nanotube(SWCNT)films with enhanced TE performance were fabricated via hydrothermal reaction,solution mixing,and subsequent vacuum filtration.The strong S-πinteraction and the energy filtering effect at the MoS_(2)/SWCNT interface produced an impressive power factor value of 107.99±4.98μW·m^(-1)·K^(-2)for the MoS_(2)/SWCNT composite films.In addition,the TE performance had high stability on bending deformation.Finally,at a temperature difference of 50 K,the assembled TE device of MoS_(2)/SWCNT films exhibited good output performance.This work provides a feasible reference to optimize the TE performance of MoS_(2)materials and demonstrates a high potential of flexible MoS_(2)-based composites in TE applications.
