Article
Materials Science, Multidisciplinary
Shawn A. Gregory, James F. Ponder, Sandra L. Pittelli, Mark D. Losego, John R. Reynolds, Shannon K. Yee
Summary: This study investigates the electronic properties of DOTTs, revealing unusually low Seebeck coefficients and carrier concentration dependencies that cannot be explained with current transport models. Additionally, some polymer/dopant systems exhibit unusually low activation energies. By evaluating the Mott polaron model transport parameters, the effects of carrier concentration were quantified, providing guidance for designing polymer chemistries.
ACS APPLIED POLYMER MATERIALS
(2021)
Article
Polymer Science
Gage T. Mason, Audithya Nyayachavadi, Madison Mooney, Kory Schlingman, Simon Rondeau-Gagne
Summary: The study investigates the application of dendronized polymers in semiconductor materials by incorporating PAMAM dendritic side chains to modify the properties. It was found that the dendritic side chains reduced aggregation and crystallinity of the polymers, while exhibiting good charge transport properties. This research reveals the potential of dendronized polymers as advanced semiconductor materials.
JOURNAL OF POLYMER SCIENCE
(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
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
Chemistry, Multidisciplinary
Xihu Wu, Teck Lip Dexter Tam, Shuai Chen, Teddy Salim, Xiaoming Zhao, Zhongliang Zhou, Ming Lin, Jianwei Xu, Yueh-Lin Loo, Wei Lin Leong
Summary: This study reports the first all-polymer BHJ-based OECTs, demonstrating the critical role of polymer nanostructures in ion transport and device performance. This work is significant for the design of new materials for OECTs and the development of organic heterojunctions for high-performing logic circuits.
ADVANCED MATERIALS
(2022)
Article
Physics, Multidisciplinary
Jiawei Wang, Dongyang Liu, Lishuai Yu, Feilong Liu, Jiebin Niu, Guanhua Yang, Congyan Lu, Nianduan Lu, Ling Li, Ming Liu
Summary: This Letter shows that the origin of nonlinear transport phenomena in conducting polymers should include the collective transport effect in a percolation network, which is revealed by a systematic dimensionality-dependent transport investigation. By controlling the samples' dimensionality and the percolation threshold pc, a smooth connection between two typically observed nonlinear phenomena is drawn. The possible microscopic origins of the collective transport are discussed within the Coulomb blockade theory.
PHYSICAL REVIEW LETTERS
(2023)
Article
Polymer Science
Rui Li, Zhicheng Dai, Meng Zheng, Cheng Wang, Zhifeng Deng, Tao Zhuang, Kui Feng, Wenjun Yang, Kun Yang, Haichang Zhang
Summary: In this study, two donor-acceptor-type polymers (P-BDF and P-NDF) based on benzodifuranone (BDF) and naphthodifunarone (NDF) were designed and synthesized with different backbone structures. It was found that the planar backbone conformation of P-BDF led to superior charge transport performance compared to P-NDF. The results suggest that the main chain coplanarity of polymer semiconductors is more essential than the sole extension of pi-conjugations.
MACROMOLECULAR RAPID COMMUNICATIONS
(2021)
Article
Nanoscience & Nanotechnology
Riley Hanus, Shawn A. Gregory, Michael J. Adams, Samuel Graham, Shannon K. Yee
Summary: Quantifying the contributions of electrons and atomic vibrations to thermal conductivity in doped semiconducting polymers is crucial for heat transfer. Previous studies have shown that charge carriers in semiconducting polymers carry more heat than those in metals, contrary to expectations. However, effective medium theory suggests that microstructures can lead to misinterpretation of results. In this study, the authors extend the SLoT model to explain the origins of this phenomenon and propose an electro-thermal extension to improve the engineering of thermal conductivity in semiconducting polymers.
ADVANCED ELECTRONIC MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Jianfeng Li, Zhicai Chen, Junwei Wang, Sang Young Jeong, Kun Yang, Kui Feng, Jie Yang, Bin Liu, Han Young Woo, Xugang Guo
Summary: Developing high-performance but low-cost n-type polymers for organic field-effect transistors (OFETs) remains a significant challenge. To achieve this, it is essential to design key electron-deficient units with simple structures and easy preparation processes, enabling the production of low-cost n-type polymers.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Multidisciplinary Sciences
Jiawei Wang, Jiebin Niu, Bin Shao, Guanhua Yang, Congyan Lu, Mengmeng Li, Zheng Zhou, Xichen Chuai, Jiezhi Chen, Nianduan Lu, Bing Huang, Yeliang Wang, Ling Li, Ming Liu
Summary: In this study, the nonlinear charge transport in conducting polymers was investigated by varying the crystalline degrees of samples. A heterogeneous-resistive-network model based on the link between Fermi liquids and Luttinger liquids was proposed to explain the nonlinear transport behaviors. The model was supported by precise electrical and microstructural characterizations, providing new insights into microstructure-correlated charge transport in organic solids.
NATURE COMMUNICATIONS
(2021)
Article
Nanoscience & Nanotechnology
Madison Mooney, Yunfei Wang, Audithya Nyayachavadi, Song Zhang, Xiaodan Gu, Simon Rondeau-Gagne
Summary: Semiconducting polymers with galactose-containing side chains were synthesized to improve solubilities in alcohol-based solvents for greener processing. The addition of carbohydrate-containing side chains had minimal detrimental impact on the electronic properties of the polymers when processed from green solvents. Incorporating natural product-inspired side chains can enhance the processability of semiconducting polymers in environmentally friendly solvents.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Multidisciplinary
Jian Zhang, Gabriela Borin Barin, Roman Furrer, Cheng-Zhuo Du, Xiao-Ye Wang, Klaus Muellen, Pascal Ruffieux, Roman Fasel, Michel Calame, Mickael L. Perrin
Summary: Bottom-up synthesized graphene nanoribbons (GNRs) are of interest due to their atomically controlled structure and customizable physical properties. However, understanding the relationship between cryogenic charge transport and the number of GNRs in a device is challenging due to lack of precise control over GNR length and location.
Article
Polymer Science
Yan-Cheng Lin, Megumi Matsuda, Chun-Kai Chen, Wei-Chen Yang, Chu-Chen Chueh, Tomoya Higashihara, Wen-Chang Chen
Summary: In this study, three NDI-based random terpolymers were synthesized by introducing functionalized conjugation break spacers (CBSs) with ester, sulfone, and amide groups to improve the stretchability of N-type semiconducting polymers. It was found that polymers with ester and amide-based CBSs exhibited better electron mobility performance during stretching and could retain a high mu(e) retention rate. This research provides insights into the mobility-stretchability properties of N-type semiconducting polymers for potential applications in intrinsically stretchable and wearable electronics.
Article
Chemistry, Multidisciplinary
Wei-Yang Chou, Po-Hsiang Fang, Fu-Chiao Wu, Yi-Chen Tien, Hwo-Shuenn Sheu, Horng-Long Cheng, Jrjeng Ruan
Summary: This study explored the fabrication and crystallization of low-voltage-driven organic field-effect transistors (OFETs) using an organic polymer as the active layer. Crystalline PBTTT-C-14 with excellent electrical performance was obtained through a thermal gradient system, demonstrating the importance of microstructure in determining the opto-electronic properties of polymer semiconductors.
CRYSTAL GROWTH & DESIGN
(2022)
Review
Materials Science, Multidisciplinary
Shuming Duan, Bowen Geng, Xiaotao Zhang, Xiaochen Ren, Wenping Hu
Summary: The major advantages of organic electronics lie in their solution processability and unique optoelectronic performance. Utilizing a solution-based method to fabricate single-crystal organic devices and circuits is crucial for the development of organic electronics, but remains challenging. The progress in organic crystal fabrication, patterning, and high-resolution printed contacts for organic field-effect transistors (OFETs) is summarized, with suggested future research directions in this field.
Article
Materials Science, Textiles
Elena N. Dresvyanina, Elena Y. Rosova, Natalia Smirnova, Elena M. Ivan'kova, Olga A. Moskalyuk, Irina P. Dobrovolskaya, Andrei N. Aleshin, Vladimir E. Yudin
Summary: The study found that the formation of PPy layers on chitosan fibers can improve electrical conductivity, and the performance of these layers depends on the polymerization conditions. Biocompatibility tests showed that chitosan-PPy composite films contain more viable cells compared to films made from pure chitosan solutions.
TEXTILE RESEARCH JOURNAL
(2022)
Article
Engineering, Electrical & Electronic
A. M. Ivanov, G. Nenashev, A. N. Aleshin
Summary: This study presents the investigation of low-frequency noise and impedance spectroscopy in planar structures based on organic-inorganic halide perovskite films. The addition of graphene oxide flakes in the films helps to reduce current noise and improve conductivity, leading to enhanced performance of perovskite optoelectronic devices.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2022)
Article
Biochemistry & Molecular Biology
Grigorii Nenashev, Maria S. Istomina, Roman S. Kryukov, Valeriy M. Kondratev, Igor P. Shcherbakov, Vasily N. Petrov, Vyacheslav A. Moshnikov, Andrey N. Aleshin
Summary: In this study, CQD/PEDOT:PSS composites were prepared via the hydrothermal method and their electrical and optical properties were investigated. The results showed that mixing CQDs with PEDOT:PSS led to improved electrical and optical performance. This composite material has potential applications in flexible organic electronics.
Article
Chemistry, Analytical
Nikita Sitkov, Andrey Ryabko, Alexey Kolobov, Alexsandr Maximov, Vyacheslav Moshnikov, Stanislav Pshenichnyuk, Alexei Komolov, Andrey Aleshin, Tatiana Zimina
Summary: Impedimetric biosensors have potential for detecting trace amounts of biomarkers or drugs, and can be modified with nanostructured materials, like zinc oxide, to increase sensitivity. In this study, a miniature biosensor with an array of zinc oxide nanorods was created using the hydrothermal method. Protein A was immobilized on the structure, and the binding of omalizumab at concentrations as low as 5 pg/mL was detected using impedance spectroscopy.
Article
Chemistry, Physical
Stanislav A. A. Pshenichnyuk, Nail L. L. Asfandiarov, Rustam G. G. Rakhmeyev, Aleksey M. M. Safronov, Alexei S. S. Komolov
Summary: Low-energy resonance electron interaction with isolated tetracyanoethylene (TCNE) molecules was studied in vacuo using dissociative electron attachment (DEA) spectroscopy. Long-lived molecular anions TCNE- were formed at thermal and low electron energies via vibrational Feshbach resonance and shape resonances with the occupation of molecular orbitals by incident electrons. Dissociative decays of TCNE- were observed, and the attachment to specific molecular orbitals led to the generation of toxic cyanogen molecules.
JOURNAL OF CHEMICAL PHYSICS
(2023)
Article
Chemistry, Physical
Lihui Liu, Honggang Ge, Yun Wang, Zhongjin Zhang, Junxian Piao, Jiahao Qiu, Baohua Zhang, Wei Shen, Kun Cao, Andrey N. Aleshin, Shufen Chen
Summary: This work proposes a multidentate zwitterionic amino acid, L-arginine, to achieve blue emission from bromide-based low-dimensional perovskites by in situ-forming nanosheets. L-arginine promotes the formation of perovskite nanosheets and significantly blue-shifts the emission due to strong interaction with the octahedral layers. The carboxyl group within L-arginine improves device performance by passivating uncoordinated Pb2+ ions. A blue PeLED based on the L-arginine-modulated perovskite film demonstrates high luminance, external quantum efficiency, and operation lifetime.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2023)
Article
Chemistry, Physical
Igor A. Pronin, Alexander P. Sigaev, Alexei S. Komolov, Evgeny V. Zhizhin, Andrey A. Karmanov, Nadezhda D. Yakushova, Vladimir M. Kyashkin, Konstantin N. Nishchev, Victor V. Sysoev, Sanket Goel, Khairunnisa Amreen, K. Ramya, Ghenadii Korotcenkov
Summary: In this work, the effects of nitrogen and oxygen plasma treatment on nanostructured SnO2-SiO2 films derived from a sol-gel method are studied. The structural and chemical properties of the films are closely examined. It is found that treatment with oxygen plasma leads to stoichiometry deviation and the appearance of a tin monoxide phase on the SnO2 surface, resulting in the highest photocatalytic activity. In contrast, treatment with nitrogen plasma does not cause noticeable changes in the material, but increasing plasma power leads to the appearance of SnO fraction on the surface and a decrease in photocatalytic activity. Overall, all types of plasma treatment lead to amorphization in the SnO2-SiO2 samples.
Article
Materials Science, Multidisciplinary
Yanfeng Chen, Shuang Lu, Meng Nan, Jvxuan Xie, Wei Shen, Andrey N. Aleshin, Gang Cheng, Shufen Chen, Wei Huang
Summary: Researchers have faced a challenge in synthesizing blue perovskite quantum dots (PQDs) with short-chain ligands due to the polarity and solubility issues. However, a room-temperature synthesis method using eco-friendly ethyl acetate polar solvent has been proposed, which successfully synthesized deep-blue CsPbBr3 PQDs with an average size of 3.87 nm and a peak wavelength of 454 nm. This work offers a novel eco-friendly approach for the preparation of effective PQDs and has the potential to accelerate their commercialization in lighting and HD full-color displays.
ADVANCED OPTICAL MATERIALS
(2023)
Article
Engineering, Electrical & Electronic
Grigorii V. Nenashev, Roman S. Kryukov, Maria S. Istomina, Petr A. Aleshin, Igor P. Shcherbakov, Vasily N. Petrov, Vyacheslav A. Moshnikov, Andrey N. Aleshin
Summary: This study focuses on the synthesis of carbon quantum dots (CQDs) derived from L-Lysine using a microwave-assisted technique. The obtained CQDs have an average size smaller than 10 nm. The influence of CQDs on the properties of organic-inorganic perovskite and the impact of DMA solvent on CQDs were examined. The results showed a positive temperature coefficient of resistivity within a certain temperature range, and the mechanism of charge carrier transport in these composites was discussed.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2023)
Article
Physics, Multidisciplinary
A. V. Andrianov, A. N. Aleshin, S. N. Abolmasov, E. I. Terukov, E. V. Beregulin
Summary: Coherent terahertz radiation is generated in p-n heterostructures at room temperature by applying a reverse bias voltage. The properties of the generated radiation strongly depend on the bias voltage, reflecting the dynamics of nonequilibrium charge carriers produced by femtosecond laser pump.
Article
Nanoscience & Nanotechnology
A. N. Aleshin
Summary: Advances in optoelectronics have led to the development of polymer, perovskite, and composite optoelectronic synaptic devices that can mimic biological synapses. These devices use resistive switching of materials under the influence of electric fields and light to simulate synaptic functions. The inclusion of graphene and graphene-oxide particles in the device matrices enhances its performance, making it suitable for neuromorphic operations.
NANOBIOTECHNOLOGY REPORTS
(2022)
Article
Physics, Multidisciplinary
L. Boudjemila, V. V. Davydov, A. N. Aleshin, V. M. Malyshkin, E. I. Terukov
Summary: The high performance of hybrid solar cells based on nanoparticles is the subject of current studies. CsPbI3 and CsPbBr3 nanoparticles are used to improve optical and electrical performance, increasing photocurrent generation in the range 370-900nm. Degradation quickly reduces efficiency, requiring specialized equipment for specific results.
ST PETERSBURG POLYTECHNIC UNIVERSITY JOURNAL-PHYSICS AND MATHEMATICS
(2022)
Article
Engineering, Electrical & Electronic
Dmitry I. Dominskiy, Oleg G. Kharlanov, Vasiliy A. Trukhanov, Andrey Yu. Sosorev, Nataliya I. Sorokina, Maxim S. Kazantsev, Eleonora F. Lazneva, Natalia B. Gerasimova, Vitaly S. Sobolev, Aleksei S. Komolov, Oleg V. Borshchev, Sergey A. Ponomarenko, Dmitry Yu. Paraschuk
Summary: Organic electronic devices often face limitations in charge injection, which affects their performance. This study demonstrates polarity switching in organic field-effect transistors (OFETs) that is independent of the electrode work function. By modifying the donor/acceptor character of the molecular terminal substituents, the researchers were able to achieve charge injection switching from p-type to ambipolar and to n-type. This finding has potential implications for the rational design of organic semiconductors for high-performance electronic devices.
ACS APPLIED ELECTRONIC MATERIALS
(2022)
Article
Physics, Multidisciplinary
A. Andrianov, A. N. Aleshin, P. A. Aleshin, O. A. Moskalyuk, V. E. Yudin
Summary: Linear dichroism and birefringence were detected in composite microfilaments of polypropylene with carbon nanofibers in the terahertz spectral range. The magnitude of linear dichroism showed a nonmonotonic behavior with frequency, reaching a maximum at low frequencies of 0.2-0.8 THz. The observed birefringence is attributed to the alignment of carbon nanofibers within the polypropylene filaments due to high-temperature stretching.
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)
