Bibliografias temáticas / Semiconducting polymer blends

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Literatura científica selecionada sobre o tema "Semiconducting polymer blends"

Autor: Grafiati
Publicado: 8 de fevereiro de 2025

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Artigos de revistas sobre o assunto "Semiconducting polymer blends"

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Kulatunga, Piumi, Nastaran Yousefi e Simon Rondeau-Gagné. "Polyethylene and Semiconducting Polymer Blends for the Fabrication of Organic Field-Effect Transistors: Balancing Charge Transport and Stretchability". Chemosensors 10, n.º 6 (24 de maio de 2022): 201. http://dx.doi.org/10.3390/chemosensors10060201.

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Polyethylene is amongst the most used polymers, finding a plethora of applications in our lives owing to its high impact resistance, non-corrosive nature, light weight, cost effectiveness, and easy processing into various shapes from different sizes. Despite these outstanding features, the commodity polymer has been underexplored in the field of organic electronics. This work focuses on the development of new polymer blends based on a low molecular weight linear polyethylene (LPE) derivative with a high-performance diketopyrrolopyrrole-based semiconducting polymer. Physical blending of the polyethylene with semiconducting polymers was performed at ratios varying from 0 to 75 wt.%, and the resulting blends were carefully characterized to reveal their electronic and solid-state properties. The new polymer blends were also characterized to reveal the influence of polyethylene on the mechanical robustness and stretchability of the semiconducting polymer. Overall, the introduction of LPE was shown to have little to no effect on the solid-state properties of the materials, despite some influence on solid-state morphology through phase separation. Organic field-effect transistors prepared from the new blends showed good device characteristics, even at higher ratios of polyethylene, with an average mobility of 0.151 cm2 V−1 s−1 at a 25 wt.% blend ratio. The addition of polyethylene was shown to have a plasticizing effect on the semiconducting polymers, helping to reduce crack width upon strain and contributing to devices accommodating more strain without suffering from decreased performance. The new blends presented in this work provide a novel platform from which to access more mechanically robust organic electronics and show promising features for the utilization of polyethylene for the solution processing of advanced semiconducting materials toward novel soft electronics and sensors.
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McNutt, William W., Aristide Gumyusenge, Luke A. Galuska, Zhiyuan Qian, Jiazhi He, Xiaodan Gu e Jianguo Mei. "N-Type Complementary Semiconducting Polymer Blends". ACS Applied Polymer Materials 2, n.º 7 (10 de junho de 2020): 2644–50. http://dx.doi.org/10.1021/acsapm.0c00261.

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Yu, G., H. Nishino, A. J. Heeger, T. A. Chen e R. D. Rieke. "Enhanced electroluminescence from semiconducting polymer blends". Synthetic Metals 72, n.º 3 (junho de 1995): 249–52. http://dx.doi.org/10.1016/0379-6779(95)03282-7.

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Gong, X., W. Ma, J. C. Ostrowski, G. C. Bazan, D. Moses e A. J. Heeger. "White Electrophosphorescence from Semiconducting Polymer Blends". Advanced Materials 16, n.º 7 (5 de abril de 2004): 615–19. http://dx.doi.org/10.1002/adma.200306230.

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Gumyusenge, Aristide, Dung T. Tran, Xuyi Luo, Gregory M. Pitch, Yan Zhao, Kaelon A. Jenkins, Tim J. Dunn, Alexander L. Ayzner, Brett M. Savoie e Jianguo Mei. "Semiconducting polymer blends that exhibit stable charge transport at high temperatures". Science 362, n.º 6419 (6 de dezembro de 2018): 1131–34. http://dx.doi.org/10.1126/science.aau0759.

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Although high-temperature operation (i.e., beyond 150°C) is of great interest for many electronics applications, achieving stable carrier mobilities for organic semiconductors at elevated temperatures is fundamentally challenging. We report a general strategy to make thermally stable high-temperature semiconducting polymer blends, composed of interpenetrating semicrystalline conjugated polymers and high glass-transition temperature insulating matrices. When properly engineered, such polymer blends display a temperature-insensitive charge transport behavior with hole mobility exceeding 2.0 cm2/V·s across a wide temperature range from room temperature up to 220°C in thin-film transistors.
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Stingelin, Natalie. "(Invited) Manipulating Photoexcitations of Flexible-Chain Polymer Semiconductors Via the Local Environment". ECS Meeting Abstracts MA2023-01, n.º 14 (28 de agosto de 2023): 1347. http://dx.doi.org/10.1149/ma2023-01141347mtgabs.

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Semiconducting:ferroelectric blends are interesting as an optoelectronic system because the strong coulombic interactions in excitons may be reduced by an enhanced polar environment provided by the ferroelectric component. Here, we demonstrate variations in the photoluminescence and charge dynamics of photo-induced absorption with model blends of the archetypal semiconducting polymer poly(3-hexylthiophene) (P3HT) and ferroelectric commodity polymer poly(vinylidene difluoride) (PVDF). This result suggests correlations between local polarity and photophysical processes of exciton dissociation and recombination, likely due to some degree of intermixing in specific blend ratios. Indeed, we see evidence of vitrification, i.e. glass formation, often leading to intermixing in these blends by varying the composition and molecular weight of the blend components. Furthermore, we will exploit the ferroelectric nano-domains, exhibited by the ter-polymer of PVDF, poly[(vinylidene fluoride‐co-trifluoro ethylene‐co-chlorotrifluoro ethylene)] [P(VDF-TrFE-CTFE)] to deliver fundamental insights into the required length scale of intermixing for photophysical processes.
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Mulderig, Andrew J., Yan Jin, Fei Yu, Jong Keum, Kunlun Hong, James F. Browning, Gregory Beaucage, Gregory S. Smith e Vikram K. Kuppa. "Determination of active layer morphology in all-polymer photovoltaic cells". Journal of Applied Crystallography 50, n.º 5 (18 de agosto de 2017): 1289–98. http://dx.doi.org/10.1107/s1600576717010457.

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This study investigates the structure of films spin-coated from blends of the semiconducting polymers poly(3-hexylthiophene-2,5-diyl) (P3HT) and poly{2,6-[4,4-bis-(2-ethylhexyl)-4H-cyclopenta[2,1-b;3,4-b′]dithiophene]-alt-4,7(2,1,3-benzothiadiazole)} (PCPDTBT). Such blends are of potential use in all-polymer solar cells in which both the acceptor and the donor material generate excitons to contribute to the photocurrent. Prompted by threefold performance gains seen in polymer/fullerene and polymer blend solar cells upon addition of pristine graphene, devices are prepared from P3HT/PCPDTBT blends both with and without graphene. This report focuses on the morphology of the active layer since this is of critical importance in determining performance. Small-angle neutron scattering (SANS) is utilized to study this polymer blend with deuterated P3HT to provide contrast and permit the investigation of buried structure in neat and graphene-doped films. SANS reveals the presence of P3HT crystallites dispersed in an amorphous blend matrix of P3HT and PCPDTBT. The crystallites are approximately disc shaped and do not show any evidence of higher-order structure or aggregation. While the structure of the films does not change with the addition of graphene, there is a perceptible effect on the electronic properties and energy conversion efficiency in solar cells made from such films. Determination of the active layer morphology yields crucial insight into structure–property relationships in organic photovoltaic devices.
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Cleave, V., G. Yahioglu, P. Le Barny, D. H. Hwang, A. B. Holmes, R. H. Friend e N. Tessler. "Transfer Processes in Semiconducting Polymer-Porphyrin Blends". Advanced Materials 13, n.º 1 (janeiro de 2001): 44–47. http://dx.doi.org/10.1002/1521-4095(200101)13:1<44::aid-adma44>3.0.co;2-#.

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Aliouat, Mouaad Yassine, Dmitriy Ksenzov, Stephanie Escoubas, Jörg Ackermann, Dominique Thiaudière, Cristian Mocuta, Mohamed Cherif Benoudia, David Duche, Olivier Thomas e Souren Grigorian. "Direct Observations of the Structural Properties of Semiconducting Polymer: Fullerene Blends under Tensile Stretching". Materials 13, n.º 14 (10 de julho de 2020): 3092. http://dx.doi.org/10.3390/ma13143092.

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We describe the impact of tensile strains on the structural properties of thin films composed of PffBT4T-2OD π-conjugated polymer and PC71BM fullerenes coated on a stretchable substrate, based on a novel approach using in situ studies of flexible organic thin films. In situ grazing incidence X-ray diffraction (GIXD) measurements were carried out to probe the ordering of polymers and to measure the strain of the polymer chains under uniaxial tensile tests. A maximum 10% tensile stretching was applied (i.e., beyond the relaxation threshold). Interestingly we found different behaviors upon stretching the polymer: fullerene blends with the modified polymer; fullerene blends with the 1,8-Diiodooctane (DIO) additive. Overall, the strain in the system was almost twice as low in the presence of additive. The inclusion of additive was found to help in stabilizing the system and, in particular, the π–π packing of the donor polymer chains.
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Jo, Sae Byeok, Wi Hyoung Lee, Longzhen Qiu e Kilwon Cho. "Polymer blends with semiconducting nanowires for organic electronics". Journal of Materials Chemistry 22, n.º 10 (2012): 4244. http://dx.doi.org/10.1039/c2jm16059e.

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Teses / dissertações sobre o assunto "Semiconducting polymer blends"

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Griffo, Michael S. "Charge dynamics in polymer-nanoparticle blends for nonvolatile memory : Surface enhanced fluorescence of a semiconducting polymer; surface plasmon assisted luminescent solar concentrator waveguides /". Diss., Digital Dissertations Database. Restricted to UC campuses, 2009. http://uclibs.org/PID/11984.

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Al, Yaman Yasmina. "Comprendre les mélanges de polymères pour leur utilisation comme conducteurs mixtes d'ions et d'électrons". Electronic Thesis or Diss., Bordeaux, 2024. http://www.theses.fr/2024BORD0431.

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Les dispositifs organiques électrochimiques émergent comme des composants essentiels dans la bioélectronique, en particulier pour les applications nécessitant une interface avec les systèmes biologiques, tels que les implants médicaux et les dispositifs portables. Un défi récurrent dans les performances de ces dispositifs est l'inefficacité du transport ionique au sein des polymères semi-conducteurs utilisés, ce qui limite leur efficacité globale. Pour remédier à cela, nous avons d'abord étudié de nouveaux polymères hydrophiles synthétisés pour améliorer la mobilité ionique. Cependant, ces matériaux ont montré une faible solubilité, entraînant des performances insuffisantes. Nous avons donc opté pour le mélange de polymères comme solution plus pratique. En mélangeant le poly(3-hexylthiophène) (P3HT) hydrophobe avec des polymères hydrophiles tels que P3HT-b-PEO ou le polyéthylène oxyde (PEO), nous avons amélioré la mobilité ionique tout en conservant les propriétés électroniques nécessaires. Ces mélanges ont montré un comportement transistor clair, le P3HT-b-PEO agissant comme compatibilisant, améliorant significativement la stabilité par rapport au PEO seul. Les mélanges avec un P3HT de masse moléculaire plus élevée ont également présenté une meilleure stabilité et des temps de réponse plus rapides, probablement grâce à un enchevêtrement accru des polymères. Lorsque cette stratégie de mélange a été appliquée au polymère rigide Poly[2,5-(2-octyldodécyl)-3,6-dicétopyrrolopyrrole-alt-5,5-(2,5-di(thién-2-yl)thiéno[3,2-b]thiophène)] (PDPP2T-TT-OD), nous avons observé des améliorations similaires des performances, bien que la rigidité de sa chaîne principale ait limité sa compatibilité. Ce travail de recherche montre l'efficacité du mélange de polymères pour optimiser le transport ionique et la stabilité des OECT, ouvrant ainsi la voie à des dispositifs bioélectroniques plus performants
Organic Electrochemical devices are emerging as vital components in bioelectronics, particularly for applications requiring interfacing with biological systems, such as medical implants and wearable devices. A recurring challenge in the performance of these devices is the inefficient ion transport within the semiconducting polymers used, which limits their overall efficiency. To address this, we initially investigated newly synthesized hydrophilic polymers designed to enhance ion mobility. However, these materials exhibited poor solubility, leading to ineffective device performance. Consequently, we shifted our approach to polymer blending as a more practical solution. By blending the hydrophobic poly(3-hexylthiophene) (P3HT) with hydrophilic polymers such as P3HT-b-PEO or polyethylene oxide (PEO), we enhanced ion mobility while maintaining the necessary electronic properties. These blends demonstrated clear transistor behavior, with P3HT-b-PEO acting as a compatibilizer, significantly improving stability comparedto PEO alone. Blends with higher molecular weight P3HT also exhibited greater stability and faster response times, likely due to increased polymer entanglement. When this blending strategy was applied to the more rigid polymer Poly[2,5-(2-octyldodecyl)-3,6-diketopyrrolopyrrole-alt-5,5-(2,5-di(thien-2-yl)thieno[3,2-b]thiophene)] (PDPP2T-TT-OD), we observed similar improvements in device performance, although the polymer's rigid backbone limited compatibility. Overall, this research highlights the effectiveness of polymer blending in optimizing ion transport and stability in OECTs, paving the way for more efficient bio-interfacing electronic devices
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Chan, Ka Hin. "Charge injection and transport characterization of semiconducting polymers and their bulk heterojunction blends". HKBU Institutional Repository, 2012. https://repository.hkbu.edu.hk/etd_ra/1405.

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(8086511), Aristide Gumyusenge. "High Temperature Semiconducting Polymers and Polymer Blends". Thesis, 2019.

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Organic semiconductors have witnessed a prolific boom for their potential in the manufacturing of lightweight, flexible, and even biocompatible electronics. One of the fields of research that has yet to benefit from organic semiconductors is high temperature electronics. The lightweight nature and robust processability is attractive for applications such as aerospace engineering, which require high temperature stability, but little has been reported on taking such a leap because charge transport is temperature dependent and commonly unstable at elevated temperatures in organics. Historically, mechanistic studies have been bound to low temperature regimes where structural disorders are minimal in most materials. Discussed here is a blending approach to render semiconducting polymer thin films thermally stable in unprecedented operation temperature ranges for organic materials. We found that by utilizing highly rigid host materials, semiconducting polymer domains could be confined, thus improving their molecular and microstructural ordering, and a thermally stable charge transport could be realized up to 220°C. With this blending approach, all-plastic high temperature electronics that are extremely stable could also be demonstrated. In efforts to establish a universal route towards forming thermally stable semiconducting blends, we found that the molecular weight of conjugated polymer plays a crucial role on the miscibility of the blends. Finally, we found that the choice of the host matrix ought to consider the charge trapping nature of the insulator.
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Chuang, Ching-Heng, e 莊靖恆. "Morphology and Electronic Properties of Semiconducting Polymer and Branched Polyethylene Blends and the synthesis of Self-Healing and elastic random copolymer". Thesis, 2019. http://ndltd.ncl.edu.tw/handle/8wkqrq.

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Capítulos de livros sobre o assunto "Semiconducting polymer blends"

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McNeill, Christopher R. "Conjugated Polymer Blends: Toward All-Polymer Solar Cells". In Semiconducting Polymer Composites, 399–425. Weinheim, Germany: Wiley-VCH Verlag GmbH & Co. KGaA, 2013. http://dx.doi.org/10.1002/9783527648689.ch14.

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Loos, Joachim. "Nanoscale Morphological Characterization for Semiconductive Polymer Blends". In Semiconducting Polymer Composites, 39–64. Weinheim, Germany: Wiley-VCH Verlag GmbH & Co. KGaA, 2013. http://dx.doi.org/10.1002/9783527648689.ch2.

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Trabalhos de conferências sobre o assunto "Semiconducting polymer blends"

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Gong, Xiong, Daniel Moses e Alan J. Heeger. "White electrophosphorescence from semiconducting polymer blends". In Optical Science and Technology, the SPIE 49th Annual Meeting, editado por Zakya H. Kafafi e Paul A. Lane. SPIE, 2004. http://dx.doi.org/10.1117/12.559072.

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Mei, Jianguo, e Aristide Gumyusenge. "Semiconducting polymer blends that exhibit stable charge transport at high temperatures (Conference Presentation)". In Physical Chemistry of Semiconductor Materials and Interfaces XVIII, editado por Daniel Congreve, Hugo A. Bronstein, Christian Nielsen e Felix Deschler. SPIE, 2019. http://dx.doi.org/10.1117/12.2529702.

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Beek, Waldo J. E., Martijn M. Wienk e René A. J. Janssen. "Hybrid bulk heterojunction solar cells: blends of ZnO semiconducting nanoparticles and conjugated polymers". In Optics & Photonics 2005, editado por Zakya H. Kafafi e Paul A. Lane. SPIE, 2005. http://dx.doi.org/10.1117/12.614911.

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