Article
Energy & Fuels
Shrishti Sharma, M. Dinachandra Singh, Anshuman Dalvi
Summary: This study reports the fabrication and characterization of all-solid-state supercapacitors utilizing a conductive filler dispersed solid polymer electrolyte. The research demonstrates that the electrical conductivity of the CSPE membranes is closely related to the EDLC performance, with the LATP content in the membranes playing a crucial role in enhancing capacitance. Additionally, EDLC cells with LATP dispersed CSPE exhibit improved stability during thermal cycling between 40 degrees C and 80 degrees C.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Computer Science, Information Systems
Mamadou Lamine Samb, Emmanuel Jacques, Amadou Seidou Maiga, Tayeb Mohammed-Brahim
Summary: This article discusses the improvement of electrical parameters in amorphous or polycrystalline silicon and metal oxide-based TFTs by reducing the thickness of the channel layer. It is found that the behavior of subthreshold swing is independent of material type. The improved electrical stability under gate stress is attributed to the reduced electronic charge and lower injection of electrons into the gate insulator.
Article
Chemistry, Physical
Taiki Kataoka, Yusaku Magari, Hisao Makino, Mamoru Furuta
Summary: The study demonstrated the conversion of a metallic indium oxide film into a nondegenerate semiconductor indium oxynitride film. By solid-phase crystallization, the Hall mobility was increased and carrier density was reduced, leading to improved field effect mobility in oxide thin film transistors.
Article
Nanoscience & Nanotechnology
Zekun Zhou, Zengren Tao, Linyun Zhang, Xueying Zheng, Xieyi Xiao, Zhen Liu, Xin Li, Guangfeng Liu, Pengfei Zhao, Peng Zhang
Summary: A scalable manufacturing protocol is developed for polymer-based solvent-free all-solid flexible energy storage devices with superior ionic conductivity and mechanical stability, showing great potential for flexible energy storage applications.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Engineering, Environmental
Seung Jae Moon, Hyo Jun Min, Chang Soo Lee, Du Ru Kang, Jong Hak Kim
Summary: A solid-state electrolyte film with high ionic conductivity, flexibility, and self-adhesive properties was developed based on a fluorinated, microphase-separated comb copolymer. The film showed excellent performance in solid supercapacitors, outperforming conventional electrolytes. This innovative electrolyte film eliminates the need for separators, adhesives, or packaging processes in supercapacitor fabrication.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Energy & Fuels
Jijian Zhang, Jing Li, Danying Zuo, Jin Xu, Hongwei Zhang
Summary: By using a ternary deep eutectic solvent to prepare eutectogels, the problems of carbon-based supercapacitors, such as low operating potential window and energy density, can be addressed. The optimized eutectogels show high ionic conductivity and good stretchability and twistability, making the quasi-solid-state supercapacitors with eutectogels exhibit stable voltage window, high energy density, and excellent cycling stability.
JOURNAL OF ENERGY STORAGE
(2023)
Review
Chemistry, Applied
Murilo M. Amaral, Raissa Venancio, Alfredo C. Peterlevitz, Hudson Zanin
Summary: Solid-state and quasi-solid-state electrolytes have gained attention for their advantages in leakage prevention, safety, and flexibility. Quasi-solid-state electrolytes show higher energy and power densities due to better ionic conductivity. Organic quasi-solid-state electrolytes with a working voltage window greater than 2.5 V require more attention, while aqueous-based solid-state electrolytes offer easier handling, greater ionic conductivity, and capacitance. Recent developments in water-in-salt polymer-electrolytes have exhibited stability up to 2 V, encouraging further research in aqueous-based quasi-solid-state electrolytes. These electrolytes have potential application in flexible and bendable devices, promoting advancements in portable electronics and wearables.
JOURNAL OF ENERGY CHEMISTRY
(2022)
Article
Chemistry, Physical
Madison Olson, Jacob Wheaton, Mary Okkema, Nicholas Oldham, Steve W. Martin
Summary: Na4P2S7-6xO4.62xN0.92x (NaPSON) glassy solid electrolytes (GSEs) were studied for their electrochemical properties and processability into thin films. The x = 0.2 composition (NaPSON-2) showed high conductivity, non-crystallizability, stability against Na-metal, and support for symmetric cell cycling. Thin films of NaPSON-2 exhibited unchanged conductivity and slow growth in resistance, while NaPSON-2 disc displayed stability and reaction products in the bulk. The surface stability was attributed to the segregation of trigonally coordinated nitrogen.
ACS APPLIED ENERGY MATERIALS
(2023)
Article
Nanoscience & Nanotechnology
Samantha Brixi, Chase L. Radford, Mathieu N. Tousignant, Alexander J. Peltekoff, Joseph G. Manion, Timothy L. Kelly, Benoit H. Lessard
Summary: The development of printable active materials for wearable electronics is important for low voltage operation. Polymeric ionic liquid (PIL) block copolymers have shown promise as gating materials for organic thin-film transistors (OTFTs) due to their thickness-independent double-layer capacitance. In this study, the self-assembly of PILs on a semiconducting polymer was investigated, and the influence on OTFT performance was examined.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Multidisciplinary
Juan Jose Peinado-Perez, Maria Cruz Lopez-Escalante, Francisco Martin
Summary: Transparent ZnMn2O4 thin films were used as electrodes in symmetric supercapacitors. By using non-aqueous PVP-ionic liquid and PVP-LiClO4 electrolytes, an improvement in capacitance retention was observed without electrode material loss. The electrochemical results indicate that the SCCs can be considered as pseudocapacitors.
Article
Engineering, Environmental
Hyo Jun Min, Min Su Park, Miso Kang, Jong Hak Kim
Summary: A polymer electrolyte based on a zwitterionic graft copolymer was developed in this study, utilizing the excellent properties of PVA main chains and PSBMA side chains to improve ion conductivity. When applied to EDLC, the new electrolyte showed significantly improved performance, attributed to higher ion conductivity and better electrode/electrolyte interface compatibility.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Chemistry, Physical
Baek Heon Lim, Ju Min Kim, Van-Tam Nguyen, Hyungi Kim, Chan Won Park, Jae Keun Lee, Chang-Hoon Lee, Jaeseop Yoo, Bok Ki Min, Seong K. Kim
Summary: In this study, an environmentally friendly fluorine-free quasi-solid polymer electrolyte is synthesized and applied in various electrochemical devices, demonstrating high conductivity, optical transparency and mechanical flexibility. The cellulose-based supercapacitor also exhibits excellent stability. This work opens a path to the development of environmentally friendly materials for sustainable applications.
MATERIALS TODAY ENERGY
(2023)
Article
Chemistry, Multidisciplinary
Chuanwu Cao, Margherita Melegari, Marc Philippi, Daniil Domaretskiy, Nicolas Ubrig, Ignacio Gutierrez-Lezama, Alberto F. Morpurgo
Summary: Ionic gating is a powerful technique for field-effect transistors that allows for experiments not possible otherwise. The use of top electrolyte gates has posed constraints and complexities, but promising results have been obtained with solid-state electrolytes. This study explores the use of Lithium-ion conducting glass-ceramics as solid-state electrolytes for gating, identifying and addressing spurious phenomena and achieving properly functioning transistors with high density ambipolar operation. The implementation of LICGCs in a back-gate configuration allows for the use of surface-sensitive techniques and double ionic gated devices with independent control of charge density and electric field.
ADVANCED MATERIALS
(2023)
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)
Article
Chemistry, Multidisciplinary
Yongtao Wang, Lingqiao Wu, Xianwei Guo, Peipei Ding, Zhiyuan Lin, Yinzhong Wang, Xin Yin, Haijun Yu
Summary: A thin free-standing composite solid electrolyte film with high ionic conductivity and wide electrochemical stability window is prepared using tape casting and solution infusion method. Solid-state lithium metal batteries based on this film and LiCoO2 cathode exhibit good cycling stability and capacity retention with a 4.5 V cut-off voltage.
CHEMICAL COMMUNICATIONS
(2022)
Article
Polymer Science
Han-Hyeong Choi, Hyun Jin Kim, Jinwoo Oh, Minsung Kim, Youngjin Kim, Jae Young Jho, Keun Hyung Lee, Jeong Gon Son, Jong Hyuk Park
Summary: An effective and simple approach for fabricating complementary resistive switching (CRS) memory devices using self-assembled block copolymer micelles is reported. This approach can reduce sneak currents and achieve position selectivity during resistive switching.
MACROMOLECULAR RAPID COMMUNICATIONS
(2022)
Article
Nanoscience & Nanotechnology
Seonjeong Lee, Won Seok Cho, Jae Yong Park, Han Ju Lee, Jong-Lam Lee, Keun Hyung Lee, Kihyon Hong
Summary: This study demonstrates a new concept of device architecture for fabricating fibrous light-emitting devices using an electrochemiluminescence (ECL) material. Instead of conventional semiconductor materials, a solid-state ECL electrolyte gel is employed as the light-emitting layer. The resulting fiber devices show reliable operation and outstanding water resistance. The simple structure of these fiber devices also allows them to easily be woven together with commercial knitwear.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Physical
Min Seok Kang, Incheol Heo, Kyung Gook Cho, Hyuna Kyung, Hee Soo Kim, Keun Hyung Lee, Won Cheol Yoo
Summary: Carbonaceous materials with superior features, such as light weight, high electrical conductivity, and specific surface area (SSA), have attracted extensive attention as electrode materials for electrochemical energy storage systems. In this study, we demonstrate the fabrication of hierarchically interconnected large pore carbonaceous materials with ultrahigh SSA through the infiltration of polymer into metal-organic frameworks (MOFs). These materials show promising performance in both ultrahigh-energy-density supercapacitors and stretchable all-solid-state supercapacitors.
ENERGY STORAGE MATERIALS
(2022)
Article
Chemistry, Physical
Dae Hyun Cho, Kyung Gook Cho, Sol An, Min Su Kim, Hye Won Oh, Jiyeong Yeo, Won Cheol Yoo, Kihyon Hong, Myungwoong Kim, Keun Hyung Lee
Summary: In this study, highly conductive, stretchable, transparent, and self-healing ionogels were developed and successfully applied in stretchable strain sensors and solid-state supercapacitors. The ionogels exhibited excellent self-healing properties, recovering their performance even after repetitive cutting and healing cycles, offering a promising solution for high-performance stretchable and wearable electronic/electrochemical devices.
ENERGY STORAGE MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Yeonbae Lee, Minjun Kim, Heein Kim, Keun Hyung Lee, Sangwon Kim
Summary: The development of reversible nanostructural associations in graft copolymer architecture has enabled the fabrication of tough polymer electrolyte composites that exhibit autonomous self-healing properties at room temperature. Random copolymers were used to form network structures, achieving remarkable mechanical properties and enabling its application in strain sensors.
ACS APPLIED POLYMER MATERIALS
(2022)
Article
Nanoscience & Nanotechnology
Kyung Gook Cho, Kyoung Hwan Seol, Min Su Kim, Kihyon Hong, Keun Hyung Lee
Summary: In this study, a simple strategy for systematically tuning the threshold voltage of electrolyte-gated transistors (EGTs) was presented. By controlling the electrochemical doping of electrolyte ions, the threshold voltage and other transistor characteristics can be precisely controlled. This study opens a route for controlling the device characteristics of ionogel-based electronic devices.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Energy & Fuels
Kyung Gook Cho, Seong Su Jang, Incheol Heo, Hyuna Kyung, Won Cheol Yoo, Keun Hyung Lee
Summary: In this study, flexible microsupercapacitors with high energy storage performance were fabricated using 3D printing technology. The use of ionogel and 3D interconnected large mesoporous carbon composite electrodes improved the energy storage capabilities while allowing for customizable 3D structures.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Nanoscience & Nanotechnology
Seonjeong Lee, Won Seok Cho, Kyung Gook Cho, Jong-Lam Lee, Keun Hyung Lee, Kihyon Hong
Summary: The development of display textiles has great potential for sensor technology, healthcare, and communication due to their advantages over traditional rigid devices. We introduced fibrous modules that can be assembled like LEGO blocks to create textile displays. By using modular electrochemiluminescent fibers, light-emitting pixels can be generated through simple physical contact, without the need for pressure or heating. This technique offers various options for designing the geometries of light-emitting pixels and can be applied to different electronic and optical textile applications.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Materials Science, Multidisciplinary
Seungjun Kim, Jiyeong Yeo, Su Jung Kim, Soeun Park, Kyung Gook Cho, Keewook Paeng, Keun Hyung Lee, Myungwoong Kim
Summary: Photocrosslinkable solid polymer ionogel electrolytes were successfully synthesized using thiol-containing 4-arm poly(ethylene glycol) and a dimethacrylate crosslinker with a disulfide bond. The resulting ionogels exhibited optical transparency, ionic conductivity, stretchability, and patternability. The presence of disulfide bonds allowed the ionogels to self-heal under mild conditions.
ORGANIC ELECTRONICS
(2023)
Article
Nanoscience & Nanotechnology
Seonjeong Lee, Won Seok Cho, Kyung Gook Cho, Jong-Lam Lee, Keun Hyung Lee, Kihyon Hong
Summary: Display textiles have great potential in various fields due to their advantages over classical rigid devices. However, it is challenging to continuously weave functional fibers with light-emitting devices using conventional textile technologies. To address this issue, we introduced fibrous modules that can be assembled like LEGO blocks to realize textile displays. The unique feature of this work is the generation of light-emitting pixels through the simple contact between modular electrochemiluminescent fibers.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Materials Science, Multidisciplinary
Da In Lee, Min Su Kim, Kyung Gook Cho, Kihyon Hong, Keun Hyung Lee
Summary: This study demonstrates a simple route to enhance the operational performance of metal halide-based p-channel transistors by anion doping. The introduction of nonvolatile bromine ions into the CuI semiconductor suppresses iodine sublimation or degradation, leading to improved operational stability and performance of the devices.
JOURNAL OF MATERIALS CHEMISTRY C
(2022)
Article
Materials Science, Multidisciplinary
Jinfei Dai, Chenjing Zhao, Jie Xu, Hossein Roshan, Hua Dong, Francesco Di Stasio, Fang Yuan, Bo Jiao, Zhaoxin Wu
Summary: In this study, the performance of perovskite nanocrystal light emitting diodes (PNC-LEDs) was enhanced through rational device structure design and the application of high-performance perovskite nanocrystal emitting layers.
ORGANIC ELECTRONICS
(2024)
Article
Materials Science, Multidisciplinary
Jia-Hua Yeh, Suhendro Purbo Prakoso, Leon Lukhas Santoso, Shi-Ju Chen, Bryan Chiang, Ju-Chieh Cheng, Ru-Ning Zhang, Yu-Cheng Chiu
Summary: This study demonstrates the application of a renewable material called dextrin-SMS in the production of electret filters and transistor memory. Dextrin-SMS material can maintain prolonged electrostatic charges and has a relatively wide memory window, making it suitable for the production of biodegradable face masks and green electronics.
ORGANIC ELECTRONICS
(2024)
Article
Materials Science, Multidisciplinary
Ahmad Telfah, Qais M. Al-Bataineh, Ahmad A. Ahmad, Rund Abu-Zurayk, Carlos J. Tavares, Johannes Etzkorn, Farzad Foadian
Summary: Polyacrylic acid complexed with polyaniline (PAA/PANI) composite materials have the potential to form organic mixed ion-electron conductive (OMIEC) films, which can be used in optoelectronic and energy storage applications. The composite films are formed through an acid-base reaction, resulting in strong electrostatic interactions and intermolecular hydrogen bonds between PANI and PAA. The separation of PANI-rich domains from PAA-rich matrix in the composite films is observed. The electrical conductivity of the composite films is higher when the content of PANI is 33 wt%, due to the high ionic-electronic coupling at the interface between phase-separated regions.
ORGANIC ELECTRONICS
(2024)
Article
Materials Science, Multidisciplinary
Min-Chih Hou, Dian Luo, Yu-Ting Huang, Shun-Wei Liu, Chin-Wei Lu, Chih-Hao Chang, Hai-Ching Su
Summary: Light-emitting electrochemical cells (LECs) have great potential for novel emission applications, but their relatively low device efficiency hinders their competitiveness with other emission technologies. A study finds that increasing the concentration of small TiO2 nano-particles in the diffuser film can enhance light extraction and improve the device efficiency of LECs.
ORGANIC ELECTRONICS
(2024)
Article
Materials Science, Multidisciplinary
Qiaoli Niu, Yao Xu, Jun Yang, Wei Hua, Baoxiang Chai, Zequan Zhang, Yuhui Ma, Wenjin Zeng, Ana Flavia Nogueira, Ruidong Xia
Summary: By introducing CPB as a defect passivation agent in the perovskite precursor solution, the optoelectronic properties of perovskite films can be significantly improved and non-radiative carrier recombination can be effectively suppressed. CPB-modified perovskite solar cells exhibit lower trap-state density and stronger carrier migration capability, leading to enhanced power conversion efficiency and stability.
ORGANIC ELECTRONICS
(2024)
Article
Materials Science, Multidisciplinary
Hulya Ozturk Dogan, Fatma Yildirim, Zeynep Orhan, Ali Ben Ahmed, Mostefa Benhaliliba, Sakir Aydogan
Summary: In this study, efficient self-powered visible and UV photodetectors based on hybrid organic-inorganic materials were demonstrated. The photodetectors showed excellent UV detecting capability and good photoresponsivity.
ORGANIC ELECTRONICS
(2024)
