Article
Materials Science, Multidisciplinary
Nan Li, Yahao Dai, Yang Li, Shilei Dai, Joseph Strzalka, Qi Su, Nickolas De Oliveira, Qingteng Zhang, P. Blake J. St Onge, Simon Rondeau-Gagne, Yunfei Wang, Xiaodan Gu, Jie Xu, Sihong Wang
Summary: Polymer semiconductors have great potential for human-integrated electronics due to their solution processability and mechanical softness. The click-to-polymer (CLIP) synthesis strategy developed by the authors allows for the attachment of diverse functional units to pre-synthesized conjugated-polymer precursors, resulting in functionalized polymers with good charge-carrier mobility. This approach can advance the state of the art by enriching the functional properties of conjugated polymers.
Article
Polymer Science
Sohee Park, Yejin Kim, Changwon Choi, Hyungju Ahn, Taemin Park, Seoung Ho Lee, Yun Hee Jang, Byoung Hoon Lee
Summary: This study investigates the impact of atomic substitution on the optoelectronic properties of coplanar donor-acceptor semiconducting polymers. The fluorinated polymer shows improved coplanarity and charge transport efficiency, while the chlorinated polymer exhibits unfavorable thin-film morphology for charge transport at larger dihedral angles.
MACROMOLECULAR RAPID COMMUNICATIONS
(2022)
Review
Polymer Science
Mengmeng Li, Jiawei Wang, Wanzhen Xu, Ling Li, Wojciech Pisula, Rene A. J. Janssen, Ming Liu
Summary: This article reviews recent advances in high-performance field-effect transistors based on polymer monolayers, focusing on solution processing techniques, polymer aggregation, packing orientation, interface engineering, and charge carrier transport mechanism. Understanding the correlation between monolayer structure and device property through summarizing field-effect mobilities of different types of polymer monolayers is highlighted. The article also discusses the progress and potential applications of polymer monolayers in electronic devices such as integrated circuits, chemical sensors, and light-emitting diodes, while proposing future research opportunities and challenges in this research field.
PROGRESS IN POLYMER SCIENCE
(2021)
Article
Materials Science, Multidisciplinary
Mingi Sung, Hyeonjin Yoo, Dahyeon Yoo, Hyungju Ahn, Gayeon Park, Kwang Hyun Park, Sung Ho Song, Byoung Hoon Lee, Junghoon Lee
Summary: This study investigates the effects of incorporating chalcogenophene comonomers on the optoelectrical properties of cyclopentadithiophene-based polymers. The results show that the polymer with thiophene comonomer has the highest crystallinity, while the polymer with selenophene comonomer has the highest hole mobility. These findings provide new guidelines for designing high-mobility pi-conjugated polymers.
ORGANIC ELECTRONICS
(2022)
Review
Chemistry, Analytical
Huiping Li, Dujuan Li, Huiyi Chen, Xiaojie Yue, Kai Fan, Linxi Dong, Gaofeng Wang
Summary: As a new type of one-dimensional semiconductor nanometer material, silicon nanowires (SiNWs) have promising applications in the field of biomedical sensing. SiNWs possess excellent electronic properties that can enhance the detection sensitivity of biosensors. SiNWs combined with field effect transistors (FETs) form a special biosensor with high sensitivity and target selectivity in real-time and label-free. SiNW-FETs have gained more attention in biomedical detection. This review critically examines the progress of SiNW-FETs, focusing on reversible surface modification methods. Additionally, it summarizes the applications of SiNW-FETs in DNA, protein, and microbial detection, while discussing their working principle and technical approaches. The review provides extensive discussion for studying the challenges in the future development of SiNW-FETs.
Article
Chemistry, Multidisciplinary
Ab F. Nieuwenhuis, Daniel F. Duarte Sanchez, Jin Z. Cui, Serge G. Lemay
Summary: In this study, the quasi-1D electrical current through long single conjugated polymer chains was measured using coupled ionic-electronic charge transport. It was found that fluctuations between internal conformations of the individual polymers resulted in abrupt, multilevel switches in the electrical current, consistent with theoretical simulations. Additionally, the results provided insights into the dynamics of random-coil polymers and the potential use of semiconducting polymers as electrical labels for single-molecule sensing assays.
ADVANCED MATERIALS
(2023)
Article
Polymer Science
Wei-Chen Yang, Yi-Wen Chen, Yang-Yen Yu, Yan-Cheng Lin, Tomoya Higashihara, Wen-Chang Chen
Summary: This study develops a series of all-conjugated block copolymers and applies them to electronic memory devices, achieving good memory performance. The design of the all-conjugated block copolymers improves the memory-photoresponse properties in phototransistor memory and overcomes the issue of phase separation in conjugated polymer blends.
MACROMOLECULAR RAPID COMMUNICATIONS
(2023)
Article
Chemistry, Multidisciplinary
Changchun Wu, Cheng Li, Xiaobo Yu, Liangliang Chen, Chenying Gao, Xisha Zhang, Guanxin Zhang, Deqing Zhang
Summary: A diazirine-based four-armed cross-linker enables efficient patterning of polymeric semiconductors by photo-induced carbene insertion. Regular patterns as small as 5 micrometers can be achieved with just 40 seconds of 365 nm irradiation, with minimal impact on thin film morphology and semiconducting properties.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
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
Joost Kimpel, Tsuyoshi Michinobu
Summary: Developments in organic field-effect transistors have led to devices with comparable or even superior charge transport properties to amorphous silicon, but improvements in device lifetime are necessary for wider application. Existing challenges include the lack of standardized methodology to evaluate lifetime, although methods like intelligent design and material improvements have shown promise in extending device stability.
POLYMER INTERNATIONAL
(2021)
Article
Nanoscience & Nanotechnology
Mykola Fomin, Francisco. Pasadas, Enrique G. Marin, Alberto Medina-Rull, Francisco. G. Ruiz, Andres. Godoy, Ihor Zadorozhnyi, Guillermo Beltramo, Fabian Brings, Svetlana Vitusevich, Andreas Offenhaeusser, Dmitry Kireev
Summary: The combination of graphene and silicon has attracted attention in hybrid electronic devices. This study presents a unique technology of graphene-on-silicon heterostructures as solution-gated transistors for bioelectronics applications. The fabricated graphene-on-silicon field-effect transistors (GoSFETs) demonstrate hybrid behavior with specific features of both graphene and silicon. A comprehensive physics-based compact model is used to explain the device behavior, which is validated against measured data.
ADVANCED ELECTRONIC MATERIALS
(2023)
Article
Chemistry, Physical
Tsubasa Mikie, Masahiro Hayakawa, Kenta Okamoto, Keitaro Iguchi, Shuhei Yashiro, Tomoyuki Koganezawa, Masatomo Sumiya, Hiroyuki Ishii, Shigehiro Yamaguchi, Aiko Fukazawa, Itaru Osaka
Summary: The charge carrier mobility of pi-conjugated polymers has significantly improved over the past two decades by increasing the pi-pi stacking ability. A new pi-conjugated polymer based on a quinoidal bithiophene moiety was synthesized, showing significantly extended pi-electron delocalization and higher intrachain charge carrier transport compared to its isomer. This study provides new guidelines for designing pi-conjugated polymers with high intrachain charge carrier transport.
CHEMISTRY OF MATERIALS
(2021)
Article
Engineering, Electrical & Electronic
Nastaran Yousefi, Cody Caba, Anita Hu, Madison Mooney, Song Zhang, Alexander D. Agostinis, Mitra Mirhassani, M. Jalal Ahamed, Yufeng Tong, Simon Rondeau-Gagne
Summary: An organic field-effect transistor sensor has been developed for specific and sensitive detection of USP8 using an engineered ubiquitin variant. The sensor exhibits high sensitivity, selectivity, and potential for tunability, providing a promising platform for advanced biotechnology applications.
ACS APPLIED ELECTRONIC MATERIALS
(2022)
Article
Engineering, Electrical & Electronic
Alireza Molazemhosseini, Fabrizio Antonio Viola, Felix J. Berger, Nicolas F. Zorn, Jana Zaumseil, Mario Caironi
Summary: The use of inkjet-printed polymer-wrapped monochiral single-walled carbon nanotubes (s-SWCNTs) as the channel for EG-FETs in an aqueous environment has been proposed in this study. This approach only requires an hour of stabilization before providing a stable response suitable for biosensing, significantly reducing the response time compared to the most commonly used organic semiconductor for biosensors.
ACS APPLIED ELECTRONIC MATERIALS
(2021)
Article
Nanoscience & Nanotechnology
Sadegh Kamaei, Ali Saeidi, Carlotta Gastaldi, Teodor Rosca, Luca Capua, Matteo Cavalieri, Adrian M. Ionescu
Summary: This study reports on the fabrication process and performance characterization of a fully integrated ferroelectric gate stack in WSe2/SnSe2 Tunnel FETs. Experimental results show that linear polarizability is maintained over a wide range of temperatures, with reduced hysteresis behavior being crucial for improved energy efficiency. Pulsed measurements demonstrate the possibility of achieving hysteresis-free negative capacitance (NC) effect on ferroelectric 2D/2D TFETs, enabling steep subthreshold slopes and high current efficiency factors.
NPJ 2D MATERIALS AND APPLICATIONS
(2021)
Article
Crystallography
Jianzheng Hu, Long Yan, Ning Zhou, Yao Chen, Xiaoni Yang, Lianqiao Yang, Shiping Guo
Summary: The effect and mechanism of carrier gas velocity, V/III ratio, and carrier gas velocity match on the growth rate of AlN were investigated in this study. The results showed that the growth rate of AlN initially increased with hydrogen flow rate, reached saturation, and then decreased monotonically. The turning point value depended on the equipment and process. By increasing the MO VM, the growth rate of AlN could be improved, but the uniformity deteriorated due to turbulence and loss of uniform boundary layer. High quality AlN films were successfully grown on nano-patterned sapphire substrates with improved crystalline quality and atomic smooth surfaces.
JOURNAL OF CRYSTAL GROWTH
(2024)
Article
Crystallography
Tingting Ma, Yang Li, Kangning Sun, Qinglin Cheng, Sen Li
Summary: This study investigates the melting process and nucleation behavior of sodium crystals using molecular dynamics simulation. The results show good agreement between simulated and experimental values for the melting temperature, density, and radial distribution function of sodium. The diffusion coefficient of liquid sodium increases linearly with temperature, and the homogeneous nucleation rate of melting in superheated sodium crystal exponentially increases with temperature. The findings provide theoretical support for applications involving heat and mass transfer in sodium-related systems.
JOURNAL OF CRYSTAL GROWTH
(2024)
Article
Crystallography
Hisato Nishii, Shintarou Iida, Akira Yamasaki, Takumi Ikenoue, Masao Miyake, Toshiya Doi, Tetsuji Hirato
Summary: Epitaxial V2O3 films were fabricated on sapphire substrates using mist chemical vapor deposition (mist CVD) method, eliminating the need for high vacuum conditions. The films can be grown on sapphire substrates even under atmospheric pressure, with the optimal growth temperature at 823 K. The films grown at 823 K exhibit a metal-insulator transition at approximately 155 K. The film on C-plane sapphire exhibits a lower transition temperature compared to those on R- and A-plane sapphire substrates.
JOURNAL OF CRYSTAL GROWTH
(2024)
Article
Crystallography
Jani Jesenovec, Kevin Zawilski, Peter Alison, Stephan J. Meschter, Sambit K. Saha, Andrew J. Sepelak, Peter G. Schunemann
Summary: In this study, NiSb needles were successfully formed in InSb by manipulating the growth rate and adding NiSb. These needle structures in InSb can be used to tune the magnetoresistance of devices. Additionally, undoped InSb crystals demonstrated good infrared transmission at low growth rates.
JOURNAL OF CRYSTAL GROWTH
(2024)
Article
Crystallography
D. Joseph Daniel, P. Karuppasamy, H. J. Kim
Summary: The 2-amino 4-methyl pyridinium oxalate (2A4MPO) compound was synthesized and its crystal structure, functional groups, thermal stability, electrical properties, and third-order nonlinear optical properties were studied. The results demonstrate that the synthesized crystal has good structural integrity, thermal stability, and potential for third-order nonlinear optical applications.
JOURNAL OF CRYSTAL GROWTH
(2024)
Article
Crystallography
C. W. Lan
Summary: The past two decades have witnessed a significant transformation in solar silicon crystal growth, especially in the competition between multi-crystalline silicon (Multi-Si) and mono-crystalline silicon (Mono-Si). The demand for this crucial material has exponentially surged, with silicon solar panels capturing over 95% of the global PV market share. The advancements in crystal growth technology during this period have set historical benchmarks, with the market share shifting from high-performance multi-crystalline silicon (HPM-Si) to CZ silicon.
JOURNAL OF CRYSTAL GROWTH
(2024)
Article
Crystallography
Peiyao Hao, Lili Zheng, Hui Zhang
Summary: A novel design of argon gas tube for removing impurities during silicon ingot growth was developed, and numerical simulations showed that it can effectively extract SiO.
JOURNAL OF CRYSTAL GROWTH
(2024)
Article
Crystallography
Geetika Sahu, Chanchal Chakraborty, Subhadeep Roy, Souri Banerjee
Summary: This article discusses the novel fractal nature of hydrothermally synthesized MoS2 QDs. By adjusting the reaction time, the study found that the average size of QDs increases and then decreases with longer reaction times. STEM images indicate that shorter reaction times lead to sheet formation, while extended reaction times cause sheets to fragment into QDs.
JOURNAL OF CRYSTAL GROWTH
(2024)
Article
Crystallography
Pengjian Lu, Wei Huang, Junjun Wang, Haitao Yang, Shiyue Guo, Bin Li, Ting Wang, Chitengfei Zhang, Rong Tu, Song Zhang
Summary: A systematic study on the tetramethylsilane-hydorgen (TMS-H-2) system for the deposition of pure single-crystal SiC by high-temperature chemical vapor deposition (HTCVD) method is conducted. The study investigates the effect of temperature, pressure, and H-2:TMS ratio on the deposition conditions and provides a theoretical basis and guidance for improving the quality and cost of industrial production of single-crystal SiC.
JOURNAL OF CRYSTAL GROWTH
(2024)
Article
Crystallography
Xinyu Jiang, Liangliang Liu, Yanqing Liu, Yan Wang, Zhaoping Hou
Summary: Investigation on the preparation of anisometric templated textured high entropy or multi-element doped ferroelectric ceramics was conducted using A-site disordered niobate microcrystals. The effects of process parameters on the morphology and chemical composition were studied, and the photocatalytic properties of the microcrystals were evaluated.
JOURNAL OF CRYSTAL GROWTH
(2024)
Article
Crystallography
Mobashsara Tabassum, Md. Ashraful Alam, Sabrina Mostofa, Raton Kumar Bishwas, Debasish Sarkar, Shirin Akter Jahan
Summary: In this study, high crystallinity copper nanoparticles were synthesized by altering the reaction medium at low temperatures. The results show that changing the reaction medium can reduce the surface energy of precursors and promote the formation of highly crystalline copper nanoparticles.
JOURNAL OF CRYSTAL GROWTH
(2024)
Article
Crystallography
Ivan Bodnar, Vitaly V. Khoroshko, Veronika A. Yashchuk, Valery F. Gremenok, Mohsin Kazi, Mayeen U. Khandaker, Tatiana I. Zubar, Daria I. Tishkevich, Alex Trukhanov, Sergei Trukhanov
Summary: This work presents the production of single crystals of Cu2ZnGeSe4, a semiconducting quaternary compound, using a gas chemical method with iodine as a transporter. The phase state, crystal structure, and lattice constants of the synthesized samples were refined and determined. The band gap of Cu2ZnGeSe4 was calculated using transmission spectrum and it was found that the band gap increases by 12% with decreasing temperature in the range of 20-300 K.
JOURNAL OF CRYSTAL GROWTH
(2024)
Article
Crystallography
Timur Malin, Igor Osinnykh, Vladimir Mansurov, Dmitriy Protasov, Sergey Ponomarev, Denis Milakhin, Konstantin Zhuravlev
Summary: The effect of growth temperature on the buffer leakage currents of GaN-on-Si layers was investigated. It was found that higher growth temperature results in lower leakage currents. The defects in GaN layers grown at different temperatures were studied using photoluminescence technique, and a correlation between leakage currents, structural perfection, and donor concentration in GaN-on-Si layers was established. It was also observed that reduced growth temperature leads to the formation of inversion domains.
JOURNAL OF CRYSTAL GROWTH
(2024)
Article
Crystallography
Thi-Hoai-Thu Nguyen, Jyh-Chen Chen
Summary: The effect of heater power control on heat, flow, and oxygen transport for CCz crystal growth was studied. Shorter upper side heater design could improve crystal quality and growth, but with higher power consumption.
JOURNAL OF CRYSTAL GROWTH
(2024)
Article
Crystallography
Peter Rudolph
Summary: This article presents an overview of selected contributions to the development of crystal growth technology by the Laudise Prize awardee 2023. It discusses various aspects such as shaped crystal growth, the correlation between melt structure and crystal quality, control of intrinsic defects and inclusions, prevention of dislocation cell patterns, and melt growth experiments under a travelling magnetic field.
JOURNAL OF CRYSTAL GROWTH
(2024)