Flexible High‐Performance Photovoltaic Devices based on 2D MoS2 Diodes with Geometrically Asymmetric Contact Areas

A Abnavi, R Ahmadi, H Ghanbari… - Advanced Functional …, 2023 - Wiley Online Library
Optoelectronic performance of 2D transition metal dichalcogenides (TMDs)‐based solar
cells and self‐powered photodetectors remain limited due to fabrication challenges, such as …

Fabrication of noble-metal-free Cd0. 5Zn0. 5S/NiS hybrid photocatalyst for efficient solar hydrogen evolution

N Li, B Zhou, P Guo, J Zhou, D Jing - International journal of hydrogen …, 2013 - Elsevier
Up to now, most of the semiconductor photocatalysts can only achieve their high
photocatalytic activity for hydrogen production with the loading of noble metals, such as Pt or …

Greatly enhanced generation efficiency of pure spin currents in Ge using Heusler compound Co2FeSi electrodes

K Kasahara, Y Fujita, S Yamada, K Sawano… - Applied Physics …, 2014 - iopscience.iop.org
We show nonlocal spin transport in n-Ge-based lateral spin-valve devices with highly
ordered Co 2 FeSi/n+-Ge Schottky tunnel contacts. Clear spin-valve signals and Hanle effect …

Room-temperature spin transport in n-Ge probed by four-terminal nonlocal measurements

M Yamada, M Tsukahara, Y Fujita, T Naito… - Applied Physics …, 2017 - iopscience.iop.org
We demonstrate electrical spin injection and detection in n-type Ge (n-Ge) at room
temperature using four-terminal nonlocal spin-valve and Hanle-effect measurements in …

Improvement of magnetic and structural stabilities in high-quality Co2FeSi1− xAlx/Si heterointerfaces

S Yamada, K Tanikawa, S Oki, M Kawano… - Applied Physics …, 2014 - pubs.aip.org
We study high-quality Co 2 FeSi 1− x Al x Heusler compound/Si (0≤ x≤ 1) heterointerfaces
for silicon (Si)-based spintronic applications. In thermal treatment conditions, the magnetic …

[HTML][HTML] Growth of Fe3Si/Ge/Fe3Si trilayers on GaAs (001) using solid-phase epitaxy

S Gaucher, B Jenichen, J Kalt, U Jahn… - Applied Physics …, 2017 - pubs.aip.org
Ferromagnetic Heusler alloys can be used in combination with semiconductors to create
spintronic devices. The materials have cubic crystal structures, making it possible to grow …

Atomically controlled epitaxial growth of single-crystalline germanium films on a metallic silicide

S Yamada, K Tanikawa, M Miyao… - Crystal growth & …, 2012 - ACS Publications
We demonstrate high-quality epitaxial germanium (Ge) films on a metallic silicide, Fe3Si,
grown directly on a Ge (111) substrate. Using molecular beam epitaxy techniques, we can …

Critical differences in the surface electronic structure of Ge(001) and Si(001): Ab initio theory and angle-resolved photoemission spectroscopy

H Seo, RC Hatch, P Ponath, M Choi, AB Posadas… - Physical Review B, 2014 - APS
Even with renewed interest in Ge as a competitor to Si in field-effect transistors, several key
features of the surface electronic structure of Ge (001) have remained controversial. Notably …

Electrical detection of spin accumulation and relaxation in -type germanium

M Kawano, M Ikawa, K Santo, S Sakai, H Sato… - Physical Review …, 2017 - APS
We report on electrical measurements of spin-dependent transport of holes in all-epitaxial
CoFe/p-type germanium (p-Ge)/Fe 3 Si spin valves, where the hole concentration (ph) of the …

Qualitative study of temperature-dependent spin signals in n-Ge-based lateral devices with Fe3Si/n+-Ge Schottky-tunnel contacts

K Hamaya, Y Baba, G Takemoto, K Kasahara… - Journal of Applied …, 2013 - pubs.aip.org
We study electrical spin injection and detection in n-Ge across Fe 3 Si/n+-Ge Schottky tunnel
barriers. Spin-accumulation signals detected electrically by the three-terminal Hanle-effect …