High-performance monolayer Na3Sb shrinking transistors: a DFT-NEGF study

Nanoscale ◽  
2020 ◽  
Vol 12 (36) ◽  
pp. 18931-18937
Author(s):  
Wenhan Zhou ◽  
Shengli Zhang ◽  
Shiying Guo ◽  
Hengze Qu ◽  
Bo Cai ◽  
...  

2D materials with direct bandgaps and high carrier mobility are considered excellent candidates for next-generation electronic and optoelectronic devices.

Author(s):  
Kai Ren ◽  
Huabing Shu ◽  
Wenyi Huo ◽  
Zhen Cui ◽  
Jin Yu ◽  
...  

Two-dimensional (2D) materials with moderate bandgap and high carrier mobility are decent for the applications in the optoelectronics. In this work, we present a systematically investigation of the mechanical, electronic...


2020 ◽  
Vol 3 (1) ◽  
Author(s):  
Youngjo Jin ◽  
Min-Kyu Joo ◽  
Byoung Hee Moon ◽  
Hyun Kim ◽  
Sanghyup Lee ◽  
...  

Abstract Two-dimensional (2D) heterostructures often provide extraordinary carrier transport as exemplified by superconductivity or excitonic superfluidity. Recently, a double-layer graphene (Gr) separated by few-layered boron nitride demonstrated the Coulomb drag phenomenon: carriers in the active layer drag carriers in the passive layer. Here, we propose high-performance Gr/MoS2 heterostructure transistors operating via Coulomb drag, exhibiting a high carrier mobility (∼3700 cm2 V−1 s−1) and on/off-current ratio (∼108) at room temperature. The van der Waals gap at the Gr/MoS2 interface induces strong interactions between the interlayer carriers, whose recombination is suppressed by the Schottky barrier between p-Gr and n-MoS2, clearly distinct from the presence of insulating layers. The sign reversal of lateral voltage clearly demonstrates the Coulomb drag in carrier transport. Hole-like behavior of electrons in the n-MoS2 is observed in magnetic field, indicating strong Coulomb drag at low temperature. Our Coulomb drag transistor thus provides a shortcut for the practical application of 2D heterostructures.


Nanoscale ◽  
2017 ◽  
Vol 9 (44) ◽  
pp. 17459-17464 ◽  
Author(s):  
Yu Liu ◽  
Wen Huang ◽  
Tianxun Gong ◽  
Yue Su ◽  
Hua Zhang ◽  
...  

Graphene has been demonstrated as a candidate for optoelectronic devices due to its broad absorption spectrum and ultra-high carrier mobility.


2007 ◽  
Vol 54 (6) ◽  
pp. 1438-1445 ◽  
Author(s):  
Akinobu Teramoto ◽  
Tatsufumi Hamada ◽  
Masashi Yamamoto ◽  
Philippe Gaubert ◽  
Hiroshi Akahori ◽  
...  

Nanoscale ◽  
2018 ◽  
Vol 10 (43) ◽  
pp. 20226-20233 ◽  
Author(s):  
Meng-han Zhang ◽  
Chang-wen Zhang ◽  
Pei-ji Wang ◽  
Sheng-shi Li

A great obstacle for the practical applications of the quantum anomalous Hall (QAH) effect is the lack of suitable two-dimensional (2D) materials with a sizable nontrivial band gap, high Curie temperature, and high carrier mobility.


Author(s):  
Xiaoqin Shu ◽  
Jiahe Lin ◽  
Hong Zhang

Group IV and V monolayers are the promising state-of-the-art 2D materials owing to their high carrier mobility, tunable bandgaps, and optical linear dichroism along with outstanding electronic and thermoelectric properties....


2020 ◽  
Vol 8 (39) ◽  
pp. 13798-13810
Author(s):  
Austin Reed ◽  
Chandon Stone ◽  
Kwangdong Roh ◽  
Han Wook Song ◽  
Xingyu Wang ◽  
...  

Amorphous InAlZnO demonstrates greater phase stability and carrier suppression capability while maintaining a high carrier mobility for high performance TFTs.


2015 ◽  
Vol 3 (41) ◽  
pp. 10892-10897 ◽  
Author(s):  
Ji Zhang ◽  
Kai Zhang ◽  
Weifeng Zhang ◽  
Zupan Mao ◽  
Man Shing Wong ◽  
...  

Angular-shaped benzodithieno[3,2-b]thiophene (BDTT) derivatives with two alkoxy side-chains were synthesized, and an OFET device based on BDTT-4 exhibited a high carrier mobility of up to 2.6 cm2V−1s−1.


Nanomaterials ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 1038
Author(s):  
Chunlong Li ◽  
Jie Li ◽  
Zhengping Li ◽  
Huayong Zhang ◽  
Yangyang Dang ◽  
...  

In recent years, high-performance photodetectors have attracted wide attention because of their important applications including imaging, spectroscopy, fiber-optic communications, remote control, chemical/biological sensing and so on. Nanostructured perovskites are extremely suitable for detective applications with their long carrier lifetime, high carrier mobility, facile synthesis, and beneficial to device miniaturization. Because the structure of the device and the dimension of nanostructured perovskite have a profound impact on the performance of photodetector, we divide nanostructured perovskite into 2D, 1D, and 0D, and review their applications in photodetector (including photoconductor, phototransistor, and photodiode), respectively. The devices exhibit high performance with high photoresponsivity, large external quantum efficiency (EQE), large gain, high detectivity, and fast response time. The intriguing properties suggest that nanostructured perovskites have a great potential in photodetection.


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