scholarly journals Fermi-level pinning, charge transfer, and relaxation of spin-momentum locking at metal contacts to topological insulators

2014 ◽  
Vol 90 (8) ◽  
Author(s):  
Catalin D. Spataru ◽  
François Léonard
Keyword(s):  
Charge Transfer ◽  
Fermi Level ◽  
Topological Insulators ◽  
Metal Contacts ◽  
Fermi Level Pinning ◽  
Spin Momentum

scholarly journals Defect Dominated Charge Transport and Fermi Level Pinning in MoS2/Metal Contacts

2017 ◽  
Vol 9 (22) ◽  
pp. 19278-19286 ◽  
Author(s):  
Pantelis Bampoulis ◽  
Rik van Bremen ◽  
Qirong Yao ◽  
Bene Poelsema ◽  
Harold J. W. Zandvliet ◽  
...  
Keyword(s):  
Fermi Level ◽  
Charge Transport ◽  
Metal Contacts ◽  
Fermi Level Pinning

scholarly journals Fermi level pinned molecular donor/acceptor junctions: reduction of induced carrier density by interfacial charge transfer complexes

2020 ◽  
Vol 8 (43) ◽  
pp. 15199-15207
Author(s):  
Paul Beyer ◽  
Eduard Meister ◽  
Timo Florian ◽  
Alexander Generalov ◽  
Wolfgang Brütting ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Fermi Level ◽  
Carrier Density ◽  
Charge Transfer Complex ◽  
Charge Transfer Complexes ◽  
Interfacial Charge Transfer ◽  
Fermi Level Pinning ◽  
Donor Acceptor ◽  
Interfacial Charge

Charge transfer complex (CPX) formation at a donor–acceptor interface reduces the amount of Fermi-level pinning induced interfacial charge transfer.

Fermi Level Pinning at Electrical Metal Contacts of Monolayer Molybdenum Dichalcogenides

ACS Nano ◽  
2017 ◽  
Vol 11 (2) ◽  
pp. 1588-1596 ◽  
Author(s):  
Changsik Kim ◽  
Inyong Moon ◽  
Daeyeong Lee ◽  
Min Sup Choi ◽  
Faisal Ahmed ◽  
...  
Keyword(s):  
Fermi Level ◽  
Metal Contacts ◽  
Fermi Level Pinning

Fermi level pinning and the charge transfer contribution to the energy of adsorption at semiconducting surfaces

2014 ◽  
Vol 115 (4) ◽  
pp. 043529 ◽  
Author(s):  
Stanisław Krukowski ◽  
Paweł Kempisty ◽  
Paweł Strak ◽  
Konrad Sakowski
Keyword(s):  
Charge Transfer ◽  
Fermi Level ◽  
Fermi Level Pinning

scholarly journals Fermi-level pinning-free WSe2 transistors via 2D van der Waals metal contacts and their complementary logic gate circuits

2021 ◽  
Author(s):  
Jisu Jang ◽  
Hyun-Soo Ra ◽  
Jongtae Ahn ◽  
Tae Wook Kim ◽  
Seung Ho Song ◽  
...  
Keyword(s):  
Fermi Level ◽  
Logic Gate ◽  
Van Der Waals ◽  
Complementary Metal Oxide Semiconductor ◽  
Logic Gates ◽  
Oxide Semiconductor ◽  
Metal Contacts ◽  
Precise Control ◽  
Fermi Level Pinning ◽  
Semiconductor Circuits

Abstract Precise control over the polarity of transistors is a key necessity for the construction of complementary metal–oxide–semiconductor circuits. However, the polarity control of two-dimensional (2D) transistors remains a challenge because of Fermi-level pinning resulting from disorders at metal–semiconductor interfaces. Here, we propose a strategy for clean van der Waals contacts, wherein a metallic 2D material, chlorine-doped SnSe2 (Cl–SnSe2), is used as the contact to provide an interface that is free of defects and Fermi-level pinning. Such clean contacts created via van der Waals integration of a 2D metal possess nearly ideal Schottky barrier heights, thus permitting polarity-controllable transistors. With the integration of 2D metallic Cl–SnSe2 as contacts, WSe2 transistors exhibit pronounced p-type characteristics, which are distinctly different from those of the devices with evaporated metal contacts, where n-type transport is observed. Finally, this ability to control the polarity enables the fabrication of functional logic gates and circuits, including inverter, NAND, and NOR.

scholarly journals Charge transfer complexation boosts molecular conductance through Fermi level pinning

2019 ◽  
Vol 10 (8) ◽  
pp. 2396-2403 ◽  
Author(s):  
Kun Wang ◽  
Andrea Vezzoli ◽  
Iain M. Grace ◽  
Maeve McLaughlin ◽  
Richard J. Nichols ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Fermi Level ◽  
Charge Transport ◽  
Molecular Wires ◽  
Fermi Level Pinning ◽  
Efficient Charge ◽  
Charge Transfer Complexation ◽  
Molecular Conductance

Efficient charge transport across long molecular wires enabled by charge-transfer complexation, through Fermi level pinning of interference features.

Barrier heights and Fermi level pinning in metal contacts on p-type GaN

2020 ◽  
Vol 116 (21) ◽  
pp. 213506 ◽  
Author(s):  
Sumaiya Wahid ◽  
Nadim Chowdhury ◽  
Md Kawsar Alam ◽  
Tomás Palacios
Keyword(s):  
Fermi Level ◽  
Metal Contacts ◽  
Fermi Level Pinning ◽  
Barrier Heights ◽  
P Type
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