【摘 要】
：
Thermoelectric (TE) energy harvesting can effectively convert waste heat into electricity,which is a crucial tech-nology to solve energy concerns.As a promising candidate for energy conversion,poly(3,4-ethylenedioxythiophene):poly (styrene sulfonate) (PED
【机 构】
：
Institute of Polymer Optoelectronic Materials and Devices,State Key Laboratory of Luminescent Materi
论文部分内容阅读
Thermoelectric (TE) energy harvesting can effectively convert waste heat into electricity,which is a crucial tech-nology to solve energy concerns.As a promising candidate for energy conversion,poly(3,4-ethylenedioxythiophene):poly (styrene sulfonate) (PEDOT:PSS) has gained significant attention owing to its easy doping,high transparency,and solution processability.However,the TE performance of PEDOT:PSS still needs to be further enhanced.Herein,differ-ent approaches have been applied for tuning the TE properties:(i) direct dipping PEDOT:PSS thin films in ionic liquid;(ii) post-treatment of the films with concentrated sulfuric acid (H2SO4),and then dipping in ionic liquid.Besides,the same bis(trifluoromethanesulfonyl)amide (TFSI) anion and different cation salts,including 1-ethyl-3-methylimidazolium(EMIM+) and lithium (Li+),are selected to study the influence of varying cation types on the TE properties of PEDOT:PSS.The Seebeck coefficient and electrical conductivity of the PEDOT:PSS film treated with H2SO4EMIM:TFSI increase si-multaneously,and the resulting maximum power factor is 46.7 μW·m-1 ·K-2,which may be attributed to the ionic liquid facilitating the rearrangement of the molecular chain of PEDOT.The work provides a reference for the development of organic films with high TE properties.
其他文献
Basalt is an igneous rock originating from the cooling and solidification of magma and covers approximately 70％ of Earth\'s surface.Basaltic glass melting in the deep Earth is a fundamental subject of research for understanding geophysics,geochemistry,a
The above-threshold ionization process of ammonia molecules induced by a femtosecond laser field at 800 nm is studied in the intensity range from 1.6 × 1013 to 5.7 × 1013 W/cm2.Channel switching under different laser intensities is observed and identified
We report an all-fiberized chirped pulse amplification system without any bulk devices.The stretcher and compressor are chirped fiber Bragg gratings inscribed in a 6/125 μm single-mode fiber and a 30/250 μm large-mode-area fiber.The fabrication system of
Lithium superoxides,Li2O3,LiO2,and LiO4,have been synthesized under high pressure.These materials have potential applications in energy storage devices.Here,we use first-principles calculations to investigate the elastic and Li+ transport properties of th
We observed an isostructural phase transition in the solid nitrogen λ-N2 at approximately 50 GPa accompanied by anomalies in lattice parameters,atomic volume and Raman vibron modes.The anomalies are ascribed to a slight reorientation of the nitrogen molec
Rutherford scattering formula plays an important role in plasma classical transport.It is urgent to investigate influence of magnetic field on the Rutherford scattering since the high magnetic field has been widely used in nowadays magnetic confinement fu
Anisotropic magnetoresistance (AMR) and related planar Hall resistance (PHR) are ubiquitous phenomena of magnetic materials.Although the universal angular dependences of AMR and PHR in magnetic polycrystalline materials with one order parameter are well k
We report the synthesis,crystal structure,and superconductivity of Ti4Ir2O.The title compound crystallizes in an η-carbide type structure of the space group Fd(3)m (No.227),with lattice parameters a =b =c =11.6194(1)(A).The superconducting temperature Tc
We report 121Sb nuclear quadrupole resonance (NQR) measurements on kagome superconductor CsV3Sb5 with Tc =2.5 K.121Sb NQR spectra split after a charge density wave (CDW) transition at 94 K,which demonstrates a commensurate CDW state.The coexistence of the
As promising materials,alloy-type anode materials have been intensively investigated in both academia and industry.To release huge volume expansion during alloying/dealloying process,they are usually doped with transition metals.However,the electrochemica