scholarly journals Tuning Transport Properties in Thermoelectric Nanocomposites through Inorganic Ligands and Heterostructured Building Blocks

ACS Nano ◽  
2019 ◽  
Vol 13 (6) ◽  
pp. 6572-6580 ◽  
Author(s):  
Maria Ibáñez ◽  
Aziz Genç ◽  
Roger Hasler ◽  
Yu Liu ◽  
Oleksandr Dobrozhan ◽  
...  
Keyword(s):  
Transport Properties ◽  
Building Blocks ◽  
Inorganic Ligands ◽  
Thermoelectric Nanocomposites

Dramatically different charge transport properties of bisthienyl diketopyrrolopyrrole-bithiazole copolymers synthesized via two direct (hetero)arylation polymerization routes

2016 ◽  
Vol 7 (27) ◽  
pp. 4515-4524 ◽  
Author(s):  
Chang Guo ◽  
Jesse Quinn ◽  
Bin Sun ◽  
Yuning Li
Keyword(s):  
Charge Transport ◽  
Transport Properties ◽  
Building Blocks

Two diketopyrrolopyrrole-bithiazole copolymers with same building blocks synthesized via direct (hetero)arylation polymerization through different routes show dramatically different charge transport properties.

scholarly journals Effects of Applied Voltages on the Charge Transport Properties in a ZnO Nanowire Field Effect Transistor

Materials ◽  
2020 ◽  
Vol 13 (2) ◽  
pp. 268 ◽  
Author(s):  
Jongwon Yoon ◽  
Fu Huang ◽  
Ki Hoon Shin ◽  
Jung Inn Sohn ◽  
Woong-Ki Hong
Keyword(s):  
Charge Transport ◽  
Transport Properties ◽  
Temperature Regime ◽  
Field Effect ◽  
Field Effect Transistor ◽  
Building Blocks ◽  
Trap States ◽  
Zno Nanowire ◽  
Threshold Voltage Shift ◽  
Effect Transistor

We investigate the effect of applied gate and drain voltages on the charge transport properties in a zinc oxide (ZnO) nanowire field effect transistor (FET) through temperature- and voltage-dependent measurements. Since the FET based on nanowires is one of the fundamental building blocks in potential nanoelectronic applications, it is important to understand the transport properties relevant to the variation in electrically applied parameters for devices based on nanowires with a large surface-to-volume ratio. In this work, the threshold voltage shift due to a drain-induced barrier-lowering (DIBL) effect was observed using a Y-function method. From temperature-dependent current-voltage (I-V) analyses of the fabricated ZnO nanowire FET, it is found that space charge-limited conduction (SCLC) mechanism is dominant at low temperatures and low voltages; in particular, variable-range hopping dominates the conduction in the temperature regime from 4 to 100 K, whereas in the high-temperature regime (150–300 K), the thermal activation transport is dominant, diminishing the SCLC effect. These results are discussed and explained in terms of the exponential distribution and applied voltage-induced variation in the charge trap states at the band edge.

scholarly journals Anisotropic transport properties of graphene-based conductor materials

2021 ◽  
Author(s):  
Diana Slawig ◽  
Leo Rizzi ◽  
Tom Rothe ◽  
Jörg Schuster ◽  
Christoph Tegenkamp
Keyword(s):  
Transport Properties ◽  
Experimental Analysis ◽  
Three Dimensional ◽  
Building Blocks ◽  
Experimental Results ◽  
Complete Picture ◽  
Comprehensive Description ◽  
Material Parameters ◽  
Macroscopic Properties ◽  
Anisotropic Transport

AbstractWe analyzed nanographite-based materials in a combined study including experimental analysis via 4-point probe STM and simulation to provide a complete picture of microscopic and macroscopic properties of the material. The two- and three-dimensional transport regimes were determined and evaluated regarding the anisotropy of the conductivity. The experimental results yield the full macroscopic conductivity tensor. Microstructural simulations are used to map those macroscopic properties to the microscopic building blocks of the sample. By combining those two, we present a coherent and comprehensive description of the electrical material parameters across several length scales.

scholarly journals ELECTRICAL TRANSPORT PROPERTIES AND FIELD EFFECT TRANSISTORS OF CARBON NANOTUBES

NANO ◽  
2006 ◽  
Vol 01 (01) ◽  
pp. 1-13 ◽  
Author(s):  
HONGJIE DAI ◽  
ALI JAVEY ◽  
ERIC POP ◽  
DAVID MANN ◽  
WOONG KIM ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Carbon Nanotube ◽  
Transport Properties ◽  
Electrical Transport ◽  
Field Effect ◽  
Ohmic Contacts ◽  
Gate Dielectric ◽  
Field Effect Transistors ◽  
Building Blocks ◽  
Electrical Transport Properties

This paper presents a review on our recent work on carbon nanotube field effect transistors, including the development of ohmic contacts, high-κ gate dielectric integration, chemical functionalization for conformal dielectric deposition and pushing the performance limit of nanotube FETs by channel length scaling. Due to the importance of high current operations of electronic devices, we also review the high field electrical transport properties of nanotubes on substrates and in freely suspended forms. Owing to their unique properties originating from their crystalline 1D structure and the strong covalent carbon–carbon bonding configuration, carbon nanotubes are highly promising as building blocks for future electronics. They are found to perform favorably in terms of ON-state current density as compared to the existing silicon technology, owing to their superb electron transport properties and compatibility with high-κ gate dielectrics. Future directions and challenges for carbon nanotube-based electronics are also discussed.

scholarly journals High-performance thermoelectric nanocomposites from nanocrystal building blocks

2016 ◽  
Vol 7 (1) ◽  
Author(s):  
Maria Ibáñez ◽  
Zhishan Luo ◽  
Aziz Genç ◽  
Laura Piveteau ◽  
Silvia Ortega ◽  
...  
Keyword(s):  
High Performance ◽  
Building Blocks ◽  
Thermoelectric Nanocomposites

Bottom-up processing of thermoelectric nanocomposites from colloidal nanocrystal building blocks: the case of Ag2Te–PbTe

2012 ◽  
Vol 14 (12) ◽  
Author(s):  
Doris Cadavid ◽  
Maria Ibáñez ◽  
Stéphane Gorsse ◽  
Antonio M. López ◽  
Albert Cirera ◽  
...  
Keyword(s):  
Building Blocks ◽  
Bottom Up ◽  
Thermoelectric Nanocomposites

scholarly journals Microstructural Parameter-Based Modeling for Transport Properties of Collagen Matrices

2015 ◽  
Vol 137 (6) ◽  
Author(s):  
Seungman Park ◽  
Catherine Whittington ◽  
Sherry L. Voytik-Harbin ◽  
Bumsoo Han
Keyword(s):  
Tissue Engineering ◽  
Transport Properties ◽  
Fluid Velocity ◽  
Building Blocks ◽  
Computational Method ◽  
Collagen Gels ◽  
Microstructural Parameter ◽  
Collagen Matrices ◽  
Branching Points ◽  
Matrices For Tissue Engineering

Recent advances in modulating collagen building blocks enable the design and control of the microstructure and functional properties of collagen matrices for tissue engineering and regenerative medicine. However, this is typically achieved by iterative experimentations and that process can be substantially shortened by computational predictions. Computational efforts to correlate the microstructure of fibrous and/or nonfibrous scaffolds to their functionality such as mechanical or transport properties have been reported, but the predictability is still significantly limited due to the intrinsic complexity of fibrous/nonfibrous networks. In this study, a new computational method is developed to predict two transport properties, permeability and diffusivity, based on a microstructural parameter, the specific number of interfibril branching points (or branching points). This method consists of the reconstruction of a three-dimensional (3D) fibrous matrix structure based on branching points and the computation of fluid velocity and solute displacement to predict permeability and diffusivity. The computational results are compared with experimental measurements of collagen gels. The computed permeability was slightly lower than the measured experimental values, but diffusivity agreed well. The results are further discussed by comparing them with empirical correlations in the literature for the implication for predictive engineering of collagen matrices for tissue engineering applications.

All-boron aromatic clusters as potential new inorganic ligands and building blocks in chemistry

2006 ◽  
Vol 250 (21-22) ◽  
pp. 2811-2866 ◽  
Author(s):  
Anastassia N. Alexandrova ◽  
Alexander I. Boldyrev ◽  
Hua-Jin Zhai ◽  
Lai-Sheng Wang
Keyword(s):  
Building Blocks ◽  
Aromatic Clusters ◽  
Inorganic Ligands
Sign in / Sign up

Export Citation Format

Share Document