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期刊论文 5

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PEDOT:PSS 1

后处理 1

掠入射广角X射线散射 1

热电性能 1

碱性溶液 1

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利用碱金属离子效应进行PEDOT:PSS 热电性能工程设计 Article

Jingjin Dong, Jian Liu, Xinkai Qiu, Ryan Chiechi, L. Jan Anton Koster, Giuseppe Portale

《工程（英文）》 2021年 第7卷 第5期   页码 647-654 doi: 10.1016/j.eng.2021.02.011

摘要：

聚（3,4-乙烯二氧噻吩）:聚（苯乙烯磺酸）（PEDOT:PSS）的电学性能设计在传感器、热电（TE）发生器和太阳能电池中的空穴传输层等各种应用方面具有巨大的潜力应用各种策略可实现PEDOT:PSS的最佳电学性能，如碱性溶液后处理。然而，目前尚不清楚碱性溶液后处理引起的结构转变背后的工作机制和确切细节。根据碱金属阳离子和PSS链之间的不同亲和力来解释这一结果，这种亲和力决定了PEDOT不同的去掺杂程度。本文的结果阐明了PEDOT:PSS在暴露于高pH值溶液时发生的结构重组，并可激发未来各种应用领域的pH值/离子响应器件的创新灵感。

关键词： PEDOT:PSS     热电性能     碱性溶液     后处理     结构-性能关系     掠入射广角X射线散射    

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Ultrafast-laser-treated poly(3,4-ethylenedioxythiophene): poly(styrenesulfonate) electrodes with enhanced conductivity and transparency for semitransparent perovskite solar cells

《化学科学与工程前沿（英文）》 2023年 第17卷 第2期   页码 206-216 doi: 10.1007/s11705-022-2203-x

摘要： Poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) is an important organic electrode for solution-processed low-cost electronic devices. However, it requires doping and post-solvent treatment to improve its conductivity, and the chemicals used for such treatments may affect the device fabrication process. In this study, we developed a novel route for exploiting ultrafast lasers (femtosecond and picosecond laser) to simultaneously enhance the conductivity and transparency of PEDOT:PSS films and fabricate patterned solution-processed electrodes for electronic devices. The conductivity of the PEDOT:PSS film was improved by three orders of magnitude (from 3.1 to 1024 S·cm–1), and high transparency of up to 88.5% (average visible transmittance, AVT) was achieved. Raman and depth-profiling X-ray photoelectron spectroscopy revealed that the oxidation level of PEDOT was enhanced, thereby increasing the carrier concentration. The surface PSS content also decreased, which is beneficial to the carrier mobility, resulting in significantly enhanced electrical conductivity. Further, we fabricated semitransparent perovskite solar cells using the as-made PEDOT:PSS as the transparent top electrodes, and a power conversion efficiency of 7.39% was achieved with 22.63% AVT. Thus, the proposed route for synthesizing conductive and transparent electrodes is promising for vacuum and doping-free electronics.

关键词： PEDOT:PSS     ultrafast laser     transparent electrode     ST-PSCs     patterning    

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phenolic hydroxyl group content prepared by the alkyl chain bridging method and applied as a dopant of PEDOT

《化学科学与工程前沿（英文）》 2023年 第17卷 第8期   页码 1075-1084 doi: 10.1007/s11705-022-2272-x

摘要： Inspired by the importance of the phenolic group to the electron transporting property of hole transport materials, phenolic hydroxyl groups were introduced in lignosulfonate (LS) via the alkyl chain bridging method to prepare phenolated-lignosulfonate (PLS). The results showed that the phenolic group was boosted from 0.81 mmol∙g–1 of LS to 1.19 mmol∙g–1 of PLS. The electrochemical property results showed two oxidation peaks in the cyclic voltammogram (CV) curve of PLS, and the oxidation potential of the PLS-modified electrode decreased by 0.5 eV compared with that of LS. This result indicates that PLS is more easily oxidized than LS. Based on the excellent electron transporting property of PLS, PLS was applied as a dopant in poly(3,4-ethylenedioxythiophene) (PEDOT, called PEDOT:PLSs). PLS showed excellent dispersion properties for PEDOT. Moreover, the transmittance measurement results showed that the transmittance of PEDOT:PLSs exceeded 85% in the range of 300–800 nm. The CV results showed that the energy levels of PEDOT:PLSs could be flexibly adjusted by PLS amounts. The results indicate that the phenolic hydroxyl group of lignin can be easily boosted by the alkyl chain bridging method, and phenolated lignin-based polymers may have promising potential as dopants of PEDOT to produce hole transporting materials for different organic photovoltaic devices.

关键词： lignosulfonate     phenolic group     PEDOT:PLS     hole extract layer     energy level    

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PSS sorbents for removing trace hydrogen sulfide in methane

Limei ZHONG, Li ZHOU

《化学科学与工程前沿（英文）》 2011年 第5卷 第3期   页码 339-342 doi: 10.1007/s11705-010-0569-7

摘要： Sorbents of the pressure swing sorption process (PSS) to remove trace amount of H S (190 ppm) contained in methane were experimentally studied. The sorbents consist of adsorbent carrier (silica gel or activated carbon) and absorbent which spreads outside the carrier granules’ pores (triethanolamine, TEA or -methyl-2-pyrrolidone, NMP). The results of breakthrough and regeneration tests show that silica gel is more suitable to be the carrier than activated carbon and TEA is more suitable to be the absorbent than NMP. The loaded absorbent could enlarge the sorption capacity of H S considerably. And the BET tests indicate that the absorbent deposits on the surface of the carrier’s pores and can reduce the mesopores’ size and block the micropores.

关键词： pressure swing sorption     H2S     methane     carrier     absorbent    

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Nickel nanopore arrays as promising current collectors for constructing solid-state supercapacitors with ultrahigh rate performance

Huaping Zhao, Long Liu, Yaoguo Fang, Ranjith Vellacheri, Yong Lei

《化学科学与工程前沿（英文）》 2018年 第12卷 第3期   页码 339-345 doi: 10.1007/s11705-018-1699-6

摘要：

In this work, nickel nanopore arrays with a highly-oriented nanoporous structure inherited from porous alumina membranes were used as nanostructured current collectors for constructing ultrahigh rate solid-state supercapacitors. A thin layer of poly(3,4-ethylenedioxythiophene) (PEDOT) as electroactive materials was conformally coated onto nickel nanopores to form heterostructured electrodes. The as-prepared electrodes have a large specific surface area to ensure a high capacity, and the highly-oriented nanoporous structure of nickel nanopores reduces the ion transport resistance, allowing the ions in the solid-state electrolytes to quickly access the PEDOT surface during the fast charge-discharge process. As a result, the assembled solid-state supercapacitor in a symmetric configuration exhibits an ideal capacitive behavior and a superior rate capability even at an ultrahigh scan rate of 50 V·s−1.

关键词： supercapacitor     ultrahigh rate     metallic nanopore arrays     current collectors     PEDOT    

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标题 作者 时间 类型 操作

利用碱金属离子效应进行PEDOT:PSS 热电性能工程设计

Jingjin Dong, Jian Liu, Xinkai Qiu, Ryan Chiechi, L. Jan Anton Koster, Giuseppe Portale

期刊论文

Ultrafast-laser-treated poly(3,4-ethylenedioxythiophene): poly(styrenesulfonate) electrodes with enhanced conductivity and transparency for semitransparent perovskite solar cells

期刊论文

phenolic hydroxyl group content prepared by the alkyl chain bridging method and applied as a dopant of PEDOT

期刊论文

PSS sorbents for removing trace hydrogen sulfide in methane

Limei ZHONG, Li ZHOU

期刊论文

Nickel nanopore arrays as promising current collectors for constructing solid-state supercapacitors with ultrahigh rate performance

Huaping Zhao, Long Liu, Yaoguo Fang, Ranjith Vellacheri, Yong Lei

期刊论文