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The advent of new-class of high-mobility semiconducting polymers opens up a window to address fundamental issues in electrical transport mechanism such as hopping between localized states versus extended state conduction. Here, we…

The transport properties of organic light-emitting diodes in which the emissive layer is composed of conjugated polymers in the liquid-crystalline phase have been investigated. We have performed simulations of the current transient response…

凝聚态物理 · 物理学 2009-11-07 S. J. Martin , A. Kambili , A. B. Walker

We measure hole transport in poly(3-hexylthiophene) field effect transistors with channel lengths from 3 $\mu$m down to 200 nm, from room temperature down to 10 K. Near room temperature effective mobilities inferred from linear regime…

介观与纳米尺度物理 · 物理学 2007-05-23 B. H. Hamadani , D. Natelson

In this paper we present theoretical analysis of the electron transport in conducting polymers. We concentrate on the study of the effects of temperature on characteristics of the transport. We treat a conducting polymers in a metal state…

材料科学 · 物理学 2008-10-23 Natalya A. Zimbovskaya

The transport properties of high-performance thin-film transistors (TFT) made with a regio-regular poly(thiophene) semiconductor (PQT-12) are reported. The room-temperature field-effect mobility of the devices varied between 0.004 cm2/V s…

材料科学 · 物理学 2009-11-10 A. Salleo , T. W. Chen , A. R. Voelkel , Y. Wu , P. Liu , B. S. Ong , R. A. Street

Phase change materials can be reversibly switched between amorphous and crystalline states and often show strong contrast in the optical and electrical properties of these two phases. They are now in widespread use for optical data storage,…

介观与纳米尺度物理 · 物理学 2012-11-06 Nicholas P. Breznay , Hanno Volker , Alexander Palevski , Riccardo Mazzarello , Aharon Kapitulnik , Matthias Wuttig

The low temperature transport of electron, or vibrational or electronic exciton towards polymer chains turns out to be dramatically sensitive to its interaction with transverse acoustic vibrations. We show that this interaction leads to…

介观与纳米尺度物理 · 物理学 2021-06-23 Alexei Boulatov , Alexander L. Burin

Semi-crystalline polymers have been shown to have greatly increased thermal conductivity compared to amorphous bulk polymers due to effective heat conduction along the covalent bonds of the backbone. However, the mechanisms governing the…

介观与纳米尺度物理 · 物理学 2015-12-09 Andrew B. Robbins , Austin J. Minnich

We analyze, through molecular dynamics simulations, the temperature dependence of the thermal conductivity (k) of chain-oriented amorphous polyethylene (PE). We find that at increasing levels of orientation, the temperature corresponding to…

材料科学 · 物理学 2019-08-14 Rajmohan Muthaiah , Jivtesh Garg

Thermal transmission in a molecular transistor with fully spin-polarized electrodes subjected to a temperature gradient is considered. The problem has been solved by using density matrix method in perturbation approach over small tunneling…

介观与纳米尺度物理 · 物理学 2022-07-12 A. D. Shkop

The development of high-performance multifunctional polymer-based electronic circuits is a major step towards future flexible electronics. Here, we demonstrate a tunable approach to fabricate such devices based on rationally designed…

We study the temperature dependence of the conductivity of the 2D electronic solid. In realistic samples, a domain structure forms in the solid and each domain randomly orients in the absence of the in-plane field. At higher temperature,…

介观与纳米尺度物理 · 物理学 2009-11-10 Shi-Jie Yang , Yue Yu

We synthesized monodisperse cobalt-platinum nanoparticles Co(0.14-0.22)Pt(0.86-0.78) of 9 nm in diameter by colloidal chemistry methods and deposited them by the Langmuir-Blodgett technique as highly ordered monolayers onto substrates with…

材料科学 · 物理学 2015-07-20 Yuxue Cai , Denis Wolfkuhler , Anton Myalitsin , Jan Perlich , Andreas Meyer , Christian Klinke

We present a hybrid quantum-classical simulation of charge-polaron transport in conjugated polymers. The charge, which couples to the angular rotations of the monomers, is modeled via the time-dependent Schr\"odinger equation, while the…

统计力学 · 物理学 2022-01-11 Laszlo Berencei , William Barford , Stephen R. Clark

Layered systems shows anisotropic transport properties. The interlayer conductivity show a general temperature dependence for a wide class of materials. This can be understood if conduction occurs in two different channels activated at…

介观与纳米尺度物理 · 物理学 2007-05-23 Urban Lundin , Ross H. McKenzie

Recent advances in our understanding of thermal transport in nanocrystalline systems are responsible for the integration of new technologies into advanced energy systems, including thermoelectric refrigeration systems and renewable energy…

介观与纳米尺度物理 · 物理学 2019-08-12 Brian F. Donovan , Ronald J. Warzoha , R. Bharath Venkatesh , Nicholas T. Vu , Jay Wallen , Daeyeon Lee

Near-room-temperature electronic transport of annealing induced semiconducting crystallites embedded within its amorphous counterpart is treated within the effective-medium approach. As such, the mixtures transport coefficients become…

介观与纳米尺度物理 · 物理学 2019-04-23 David Emin

A coarse-grained molecular dynamics model of linear polyethylene-like polymer chain system was built to investigate the responds of structure and mechanical properties during uniaxial deformation. The influence of chain length, temperature,…

软凝聚态物质 · 物理学 2020-05-19 Cheng Li , Yingrui Shang , Huan Xu , Jinqing Li , Shichun Jiang

The electronic properties of disordered systems at the Anderson metal-insulator transition (MIT) have been the subject of intense study for several decades. Thermoelectric properties at the MIT, such as thermopower and thermal conductivity,…

介观与纳米尺度物理 · 物理学 2007-05-23 Alexander Croy , Rudolf A. Roemer

Cross-plane electrical and thermal transport in thin films of a conducting polymer (poly(3,4-ethylenedioxythiophene), PEDOT) stabilized with trifluoromethanesulfonate (OTf) is investigated in this study. We explore their electrical…

材料科学 · 物理学 2022-06-16 K. Kondratenko , D. Guerin , X. Wallart , S. Lenfant , D. Vuillaume
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