Review
Chemistry, Physical
Zhen Su, Yingzhi Jin, Hongmei Wang, Zaifang Li, Liang Huang, Hao Wang
Summary: Flexible supercapacitors based on PEDOT:PSS have been extensively studied due to their high conductivity, high theoretical capacitance, and excellent flexibility. However, there is a need to summarize the scattered literature studies and provide guidance for future research. This review focuses on the recent progress of PEDOT:PSS-based flexible supercapacitors from the perspectives of fiber, film, and three-dimensional porous block, and discusses the challenges and outlook for their practical application.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Guoqiang Liu, Xiao Chen, Congcong Liu, Qinglin Jiang, Fengxing Jiang, Jianyu An, Jingkun Xu, Peipei Liu
Summary: Researchers have developed PEDOT:PSS/PANi fibers with high specific capacitance and superior electrochemical properties through one-dimensional self-assembly technique, improving their conductivity and electroactivity by removing PSS chains with DMSO treatment. The final test results show that the symmetric supercapacitor constructed with DMSO-P4P6 fiber exhibits good performance at high energy density.
JOURNAL OF MATERIALS SCIENCE
(2021)
Article
Engineering, Chemical
Po-Hsin Wang, Li-Hsiang Tseng, Wei-Cheng Li, Chen-Hsueh Lin, Ten-Chin Wen
Summary: ZSIPNEs enable achieving ultra-high ionic conductivity and excellent mechanical properties, with content of pSBMA showing superior performance. The electrolyte C-ZSIPNE shows wide electrochemical window and high energy/power density, with potential application in flexible supercapacitors.
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
(2021)
Article
Engineering, Environmental
Pu Hou, Chenxiang Gao, Jian Wang, Jiuzhou Zhang, Yang Liu, Jiyou Gu, Pengfei Huo
Summary: In recent years, the importance of green and sustainable development has been recognized by more and more people. Current research focuses on preparing high strength transparent wood by filling delignified wood with resin. Inspired by this, gel polymer electrolytes with high ionic conductivity were prepared using delignified wood as substrate, polyurethane with different ratios of polyethylene glycol to 2,2-bis(hydroxymethyl)pro-pionic acid as filling polymer matrix, and lithium perchlorate as electrolyte. These electrolytes were applied in solid-state supercapacitors with activated carbon as working electrodes, showcasing excellent performance.
CHEMICAL ENGINEERING JOURNAL
(2023)
Review
Chemistry, Multidisciplinary
Hailin Yu, Jiayu Wang, Qiao Zhou, Jiaqiang Qin, Yinghan Wang, Xinhui Lu, Pei Cheng
Summary: Organic photovoltaics (OPVs) are considered as a promising solution to environmental problems and energy challenges. Semi-transparent OPVs (STOPVs) are one of the most possible commercialized forms of OPVs, with power conversion efficiency over 14% and average visible light transmittance over 20%. This tutorial review summarizes the device structures, operating principles, and evaluation parameters of STOPVs, proposes strategies to construct high-performance STOPVs, and discusses potential applications and challenges for the future commercialization of STOPVs.
CHEMICAL SOCIETY REVIEWS
(2023)
Article
Materials Science, Multidisciplinary
Bowen Yao, Luize Scalco de Vasconcelos, Qingyu Cui, Anne Cardenas, Yichen Yan, Yingjie Du, Dong Wu, Shuwang Wu, Tzung K. Hsiai, Nanshu Lu, Xinyuan Zhu, Ximin He
Summary: Compared to conventional rigid electronics, polymer-based soft electronics that conform to irregular shapes of organisms have advantages in long-term bio-interface interactions. However, the current polymer materials are unstable in alkaline environments, reductants, and applied voltage, leading to performance deterioration. This study proposes a coating strategy using reduced-graphene-oxide thin layers to enhance stability and conductivity.
Article
Polymer Science
Matteo Sanviti, Lars Mester, Rainer Hillenbrand, Angel Alegria, DanielE. Martinez-Tong
Summary: In this study, nanostructured conducting PEDOT:PSS thin films were prepared using solvent vapor annealing (SVA) with tetrahydrofuran (THF) as the low boiling point solvent. Atomic Force Microscopy (AFM) was used to observe the development of distinct nanostructures with solvent exposure time. The physical properties of the nanostructures were evaluated through nanomechanical, nanoelectrical, and nanoinfrared (nano-FTIR) measurements. It was demonstrated that exposure to THF can effectively and selectively modify the surface nanostructure of PEDOT:PSS and thus its final properties. The nanoscale studies also provided evidence of molecular rearrangements during nanostructure fabrication, which is crucial for expanding the potential applications of this polymer in thermoelectric and optoelectronic devices.
Article
Polymer Science
Wen Wang, Jie Cao, Jiawen Yu, Fajuan Tian, Xiaoyu Luo, Yiting Hao, Jiyan Huang, Fucheng Wang, Weiqiang Zhou, Jingkun Xu, Ximei Liu, Hanjun Yang
Summary: Supercapacitors, known for their high power density, fast charging and discharging speeds, and long service life, are widely used in various fields. However, the integration of supercapacitors in flexible electronics faces challenges regarding extensibility, bending stability, and operability. To address these challenges, we deposited thiophene and 3-methylthiophene on patterned 304 stainless steel through electropolymerization to prepare stretchable conducting polymer electrodes. Moreover, the cycling stability of the electrodes was improved by protecting them with a poly(vinyl alcohol)/sulfuric acid gel electrolyte. The assembled flexible supercapacitors exhibited 93% stability even after 10,000 cycles of strain, highlighting their potential applications in flexible electronics.
Article
Chemistry, Multidisciplinary
Jie Liang, Hongwei Sheng, Qi Wang, Jiao Yuan, Xuetao Zhang, Qing Su, Erqing Xie, Wei Lan, Chuanfang (John) Zhang
Summary: This study achieved significant performance enhancement in FTSCs using a novel electrode material AMP, with high transmittance and large areal capacitance. The design also demonstrated excellent cycle life and mechanical robustness, showcasing great potential in high-performance FTSCs.
NANOSCALE ADVANCES
(2021)
Article
Polymer Science
Sara M. Jorge, Antonio Ablu, Fabio Garrudo, Adelino Galvao, Lufs F. Santos, Jorge Morgado, Ana Charas
Summary: The conductivity and structural resistance of thin films of poly(3,4-ethylenedioxythiophene):polystyrene sulfonate (PEDOT:PSS):oxetane mixtures are significantly improved, with the conductivity reaching 710 S/cm, compared to pristine PEDOT:PSS films. The presence of hydroxyl moieties in the oxetanes is crucial for these improvements, which is attributed to the segregation and conformational changes of PEDOT induced by interactions between charged PEDOT and PSS chains. These interactions are facilitated by covalent cross-linking or hydrogen bonding between negative PSS and hydroxyl groups in the polyether chains resulting from the polymerization of oxetanes in the PEDOT:PSS medium.
Article
Nanoscience & Nanotechnology
Wendong Liu, Zhihui Lei, Rui Yang, Wenkui Xing, Peng Tao, Wen Shang, Benwei Fu, Chengyi Song, Tao Deng
Summary: This paper investigates the effects of hot pressing on the electrical and thermal performance of acid-treated thick conducting polymer PEDOT:PSS films. The study reveals that hot pressing significantly enhances the electrical and thermal conductivity of the films, which can be attributed to the optimized morphology and microstructures. The hot-pressed PEDOT:PSS films show potential applications in flexible electronics and thermal management.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Physical
Qian Rong, Chao Yuwen, Yingkai Liu, Yuanrong Liu, Chunyang Wang, Yang Wang, Ding Zhang, Zhen Wen
Summary: Developing highly robust and efficient electrode materials is crucial for increasing the energy density of supercapacitors. This study presents an efficient catalyst with monodispersed Mn single-atoms embedded in carbon nanotubes (Mn-CNTs), which enhances the electrode performance of supercapacitors. The introduction of Mn single-atoms leads to higher specific capacitance and energy density.
Article
Polymer Science
Bipin S. Chikkatti, Ashok M. Sajjan, Nagaraj R. Banapurmath, Javed Khan Bhutto, Rajesh Verma, T. M. Yunus Khan
Summary: This research presents the development of a novel electrode material, poly(lactic acid)/alloysite nano-clay, for supercapacitors. The material exhibited high specific capacitance and energy density, and showed good electrochemical characteristics in various tests. It also demonstrated excellent capacitance retention after multiple cycles.
Review
Materials Science, Multidisciplinary
Wujie Dong, Miao Xie, Siwei Zhao, Qiuliang Qin, Fuqiang Huang
Summary: This review provides an overview of the history, classification, basic mechanism, and device architecture of supercapacitors. The key issues and design strategies for dual high supercapacitors are proposed, along with recent methodical advances in high specific capacitance materials and expanded operating voltage electrolyte systems. The recent progresses of current collectors and separators for supercapacitors are also included. The review concludes with insights on the major challenges and prospective solutions in this highly exciting field, aiming to expand the horizons in understanding dual high supercapacitors.
MATERIALS SCIENCE & ENGINEERING R-REPORTS
(2023)
Article
Materials Science, Multidisciplinary
Nerea Casado, Sara Zendegi, Liliana C. Tome, Santiago Velasco-Bosom, Ana Aguzin, Matias Picchio, Miryam Criado-Gonzalez, George G. Malliaras, Maria Forsyth, David Mecerreyes
Summary: Poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) mixed conducting polymer electrodes have gained significant attention in healthcare monitoring. However, the use of toxic additives in enhancing their electrical conductivity restricts their application in wearable devices. In this study, a family of biocompatible ionic liquids (ILs) based on the cholinium cation and carboxylated anions were explored as dopants and gelators for PEDOT:PSS, resulting in the formulation of safe bioelectrodes for long-term cutaneous recording.
JOURNAL OF MATERIALS CHEMISTRY C
(2022)