Review
Chemistry, Multidisciplinary
Zhengqi Shen, Wei Huang, Li Li, Huizi Li, Jia Huang, Jiangong Cheng, Yanyan Fu
Summary: Due to their high sensitivity and selectivity, chemical sensors have gained significant attention in various fields. Among them, organic field-effect transistor (OFET) based chemical sensors have emerged as a promising alternative to traditional sensors. This review paper presents recent research progress on OFET-based chemical sensors, highlighting the enhancement of sensor performance. The main improvement programs include improving the internal and external structures of the device, as well as the organic semiconductor layer and dielectric structure. An outlook on the prospects and challenges of OFET-based chemical sensors is also provided.
Review
Polymer Science
Yan Wang, Junyao Zhang, Shiqi Zhang, Jia Huang
Summary: This review focuses on the fabrication methods of ultrathin OSC films and their applications in sensors, emphasizing the enhanced sensing performance of ultrathin organic semiconductor film devices. It also gives an overall outlook on the future development prospects and challenges.
POLYMER INTERNATIONAL
(2021)
Review
Chemistry, Multidisciplinary
Lukasz Janasz, Michal Borkowski, Paul W. M. Blom, Tomasz Marszalek, Wojciech Pisula
Summary: Organic semiconductors face limitations in their practical applicability due to low environmental stability and poor charge carrier mobilities. Blending with thermoplastic polymers and elastomers can overcome these restrictions and induce new material properties, showcasing great potential for flexible and stretchable electronics. Improved device properties such as charge carrier mobility, life-time, sensing ability, and mechanical behavior are achieved through blending with insulators, offering promise for various electronic devices and semiconductor classes.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Review
Chemistry, Analytical
Yixi Deng, Lei Liu, Jingyan Li, Li Gao
Summary: This paper focuses on the application of carbon nanotube field-effect transistor (CNT-FET) biochemical sensors in detecting biomarkers. It introduces the preparation, properties, and functional modification of CNTs, as well as the configuration and sensing mechanism of CNT-FETs. The latest progress in detecting nucleic acids, proteins, cells, gases, and ions based on CNT-FET sensors is summarized.
Review
Chemistry, Analytical
Xuesong Yao, Yalei Zhang, Wanlin Jin, Youfan Hu, Yue Cui
Summary: This review discusses the application of CNT-based FETs in chemical and biological sensors, including properties, surface functionalization, sensing mechanisms, and recent advancements. While significant progress has been made in using CNTFETs for chemical and biological sensing, there are still challenges that need to be addressed.
Article
Nanoscience & Nanotechnology
Eun-Sol Shin, Ji-Young Go, Gi-Seong Ryu, Ao Liu, Yong-Young Noh
Summary: The stability of OSC-based gas sensors can be greatly improved by adding molecular additives, allowing for reliable and reversible gas detection in air for multiple uses.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Review
Biochemical Research Methods
Xingguo Zhang, Zhihua Pu, Xiao Su, Chengcheng Li, Hao Zheng, Dachao Li
Summary: Organic field-effect transistors (OFETs) have been proposed for over three decades and have recently regained research attention due to the rapid development of flexible electronics. In recent years, many novel flexible OFETs-based sensors have been reported, with a focus on biological applications. This paper reviews the materials, fabrication, and applications of flexible OFETs-based biosensors, while also discussing the challenges and opportunities they present.
ANALYTICAL AND BIOANALYTICAL CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Hiroshi Nishimoto, Takeshi Kawase, Jun-ichi Nishida
Summary: Three TP-BT derivatives were synthesized with different aryl substituents, and it was found that the molecular structure affected their semiconductor properties. X-ray analysis showed the crystal structures of the pyridyl-substituted compounds, and the thin films of all three compounds had edge-on arrangements on the substrates. The OFET devices using these derivatives as active layers exhibited different hole mobility and photo-active properties.
Article
Materials Science, Multidisciplinary
Stefano Lai, Ylea Vlamidis, Neeraj Mishra, Piero Cosseddu, Vaidotas Miseikis, Pier Carlo Ricci, Valerio Voliani, Camilla Coletti, Annalisa Bonfiglio
Summary: This paper introduces a novel chemical sensor that combines organic floating gate field-effect transistors with functional graphene electrodes, creating flexible and transparent sensor devices. By non-covalently functionalizing graphene, it achieves chemical responsivity without affecting its electronic and optical properties. These devices have the potential to develop a range of chemosensing capabilities by varying the chemical specificity of the immobilized receptors.
ADVANCED MATERIALS TECHNOLOGIES
(2021)
Article
Chemistry, Multidisciplinary
Lautaro N. Petrauskas, Katherina Haase, Georg C. Schmidt, Arved C. Huebler, Stefan C. B. Mannsfeld, Frank Ellinger, Bahman K. Boroujeni
Summary: Traditional insecticides are toxic to beneficial insects and humans, posing risks to food safety. Therefore, a reusable and low-cost electronic trap that can attract, detect, and identify pests while leaving beneficial insects unharmed could provide a sustainable and nature-friendly alternative.
Article
Nanoscience & Nanotechnology
Li Chen, Yuzhou Hu, Huaxi Huang, Chao Liu, Yaping Zang, Di Wu, Jianlong Xia
Summary: This study demonstrates a robust approach to fabricate porous organic semiconductor (OSC) films using a femtosecond laser-processed porous dielectric layer template. The resulting OSC films show enhanced sensitivity to ammonia analyte with controllable pore size and well-defined pore patterns. Moreover, this laser-assisted approach can be used to fabricate flexible gas sensors with improved sensing performance and mechanical durability.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Nanoscience & Nanotechnology
Askold A. Trul, Victoria P. Chekusova, Daniil S. Anisimov, Oleg V. Borshchev, Marina S. Polinskaya, Elena V. Agina, Sergey A. Ponomarenko
Summary: This study investigates the electrical and sensing properties of ultrathin OFETs based on BTBT dimers with different aliphatic spacer lengths, fabricated by Langmuir-Blodgett, Langmuir-Schaefer, or spin-coating techniques. By optimizing the interface dielectric layer, uniform low-defect ultrathin semiconducting layers are obtained, resulting in improved electrical performance. The highest field-effect mobility of 0.47 cm(2) V-1 s(-1) is achieved for devices fabricated by LS method on top of a poly(methyl methacrylate) interface layer. The promising operational stability leads to advanced sensory properties, with a record limit of detection of 30 ppb for sensing ethanethiol in humid air.
ADVANCED ELECTRONIC MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Marco Hoeppner, Bahman Kheradmand-Boroujeni, Joern Vahland, Michael Franz Sawatzki, David Kneppe, Frank Ellinger, Hans Kleemann
Summary: The high-frequency and low-voltage operation of organic thin-film transistors (OTFTs) is crucial for the commercial success of flexible electronics. While significant progress has been made, technology maturity remains a key challenge, including scalability, integrability, and device reliability.
Review
Chemistry, Multidisciplinary
Jung Hun Lee, Jeong Hwan Chun, Hyun-Jong Chung, Wi Hyoung Lee
Summary: This review summarizes the strategies to enhance the gas-sensing properties of soluble acene FET sensors by controlling the microstructure, including grain boundary engineering, patterning, pore generation, and phase separation.
Article
Chemistry, Physical
Liangjie Wang, Xin Chen, Zhengran Yi, Rui Xu, Junjie Dong, Shuai Wang, Yan Zhao, Yunqi Liu
Summary: This study successfully solved the limitations of the traditional structure by preparing Cu-BHT nanotubes, which increased the specific surface area and the proportion of crystal defects. A DPPTT/Cu-BHT-NTs heterostructure OFET-based sensor with excellent sensing performance was constructed, achieving high sensitivity and selectivity for the detection of nitric oxide toxic gases. Furthermore, a fully flexible wearable device based on the heterojunction OFET sensor was prepared, opening up a new avenue for the development of the next generation of wearable intelligent electronics.
Article
Dentistry, Oral Surgery & Medicine
Jasmine Sinha, Adam Dobson, Osamah Bankhar, Maciej Podgorski, Parag K. Shah, Sheryl L. W. Zajdowicz, Abdulaziz Alotaibi, Jeffrey W. Stansbury, Christopher N. Bowman
Article
Chemistry, Multidisciplinary
Ajay Kumar, Han Young Shin, Taehwan Lee, Jaehoon Jung, Byung Jun Jung, Min Hyung Lee
CHEMISTRY-A EUROPEAN JOURNAL
(2020)
Article
Chemistry, Analytical
Yu Min Choi, Han Young Shin, Jongchan Son, Chunhee Park, Keun-Woo Park, Jin-Kyun Lee, Byung Jun Jung
Article
Nanoscience & Nanotechnology
Yunfeng Hu, Benjamin A. Kowalski, Sudheendran Mavila, Maciej Podgorski, Jasmine Sinha, Amy C. Sullivan, Robert R. McLeod, Christopher N. Bowman
ACS APPLIED MATERIALS & INTERFACES
(2020)
Article
Biochemistry & Molecular Biology
Heidi R. Culver, Jasmine Sinha, Tania R. Prieto, Christopher J. Calo, Benjamin D. Fairbanks, Christopher N. Bowman
Article
Polymer Science
Jasmine Sinha, Shafer Soars, Christopher N. Bowman
Summary: This article describes an efficient enamine organocatalyzed thiol-Michael click reaction and its broad application in cross-linking polymerizations. The nucleophilicity of the enamines used is crucial for the reaction efficiency and overall yields, with in situ formation of an enamine via photo-deprotection of an amine showing promising results in facilitating thiol-Michael reactions and improving functional group conversion rates.
Article
Nanoscience & Nanotechnology
Sudheendran Mavila, Jasmine Sinha, Yunfeng Hu, Maciej Podgorski, Parag K. Shah, Christopher N. Bowman
Summary: This study presents a scalable method for synthesizing high refractive index, optically transparent photopolymers using low-viscosity multifunctional thiol and alkyne monomers through thiol-yne click reactions. These reactions create sulfide linkages, allowing for the production of cross-linked high optical quality photopolymers compared to thiol-ene systems.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Review
Chemistry, Multidisciplinary
Benjamin D. Fairbanks, Laura J. Macdougall, Sudheendran Mavila, Jasmine Sinha, Bruce E. Kirkpatrick, Kristi S. Anseth, Christopher N. Bowman
Summary: Photoclick chemistry involves a collection of click reactions performed with the application of light, offering spatiotemporal control, high selectivity, and excellent product yields. Different photoclick reactions have their own advantages and disadvantages, and a broader understanding of their physical and chemical characteristics is essential for realizing the full potential of this chemistry.
Article
Polymer Science
Kangmin Kim, Jasmine Sinha, Jeffrey W. Stansbury, Charles B. Musgrave
Summary: A new visible DCPI was developed with superior photo- and dark-curing efficiencies, offering new application opportunities in RPP, especially in cases involving highly light attenuating resins, surfaces with irregular features, and production lines where continued dark-curing downstream of light activation enhances efficiencies.
Article
Multidisciplinary Sciences
Hoseong Jeong, Byung Jun Jung, Jae Hyun Kim, Seung-Ho Choi, Yoon Jung Lee, Kang Su Kim
Summary: A simple and rapid synthesis method for a cellulose-based pH sensor was proposed in this study. The developed sensor exhibited high sensitivity and response time, and the manufacturing process was completed within 8 hours.
ROYAL SOCIETY OPEN SCIENCE
(2022)
Article
Construction & Building Technology
Hoseong Jeong, Byung Jun Jung, Jae Hyun Kim, Soo-Yeon Seo, Hyun-do Yun, Kang Su Kim
Summary: This study proposes an optical sensor that can monitor the early stage of concrete carbonation. The sensor shows fast and reversible responses, and exhibits color changes within the pH range of 10 to 13.4.
JOURNAL OF BUILDING ENGINEERING
(2022)
Article
Instruments & Instrumentation
Hoseong Jeong, Byung Jun Jung, Jae Hyun Kim, Soo-Yeon Seo, Hyun-do Yun, Kang Su Kim
Summary: The construction industry contributes significantly to global warming, with 5% of CO2 emissions resulting from cement manufacturing. To combat global warming, efforts are needed to prolong infrastructure lifespan through structural health monitoring and timely repair. Carbonation is often identified as a major cause of concrete deterioration, and current methods for measuring carbonation, such as destructive testing, are time-consuming and expensive. This study aimed to develop a pH sensor that can monitor the final stage of carbonation efficiently. The sensor, manufactured by functionalizing nylon with formaldehyde and chloroacetyl chloride and covalently bonding it with aniline blue, displayed a significant color change in the pH range of 5 to 10, showed sufficient response within 30 minutes, and demonstrated stability even in high pH environments like concrete.
SMART MATERIALS AND STRUCTURES
(2023)
Article
Polymer Science
Sijia Huang, Kangmin Kim, Grant M. Musgrave, Marcus Sharp, Jasmine Sinha, Jeffrey W. Stansbury, Charles B. Musgrave, Christopher N. Bowman
Summary: A combined experimental and computational study was conducted on the reactivities of seven commonly used Michael acceptors paired with two thiols in the framework of photobase-catalyzed thiol-Michael reactions. The study compared the experimentally determined rate coefficients with electrophilicity parameters and DFT-calculated energetics. The results provide insights into the factors controlling reaction barriers for propagation and chain transfer, serving as a useful guide for designing and predicting thiol-Michael-based materials with appropriate kinetic and material properties.
Article
Polymer Science
Jongchan Son, Heebum Roh, Han Young Shin, Keun-Woo Park, Chunhee Park, Hanbit Park, Changhee Lee, Jeonghun Kwak, Byung Jun Jung, Jin-Kyun Lee
Article
Chemistry, Multidisciplinary
Albert Harguindey, Heidi R. Culver, Jasmine Sinha, Christopher N. Bowman, Jennifer N. Cha
CHEMICAL COMMUNICATIONS
(2020)
