Wide bandgap oxide semiconductors: from materials physics to optoelectronic devices

J Shi, J Zhang, L Yang, M Qu, DC Qi… - Advanced …, 2021 - Wiley Online Library
Wide bandgap oxide semiconductors constitute a unique class of materials that combine
properties of electrical conductivity and optical transparency. They are being widely used as …

Ambipolarity of hydrogen in matter revealed by muons

R Kadono, H Hosono - Advances in Physics, 2023 - Taylor & Francis
Despite being the simplest element, hydrogen (H) exhibits complex behavior in materials
due to its unique ambipolar character. In particular, it is recognized as one of the most …

Huge mobility enhancement of InSnZnO thin-film transistors via Al-induced microstructure regularization

X Wang, L Liang, H Zhang, H Wu, W Li, C Ning… - Applied Physics …, 2021 - pubs.aip.org
High-field-effect-mobility InSnZnO thin-film transistors (TFTs) are prepared through Al-
induced microstructure regularization (AIMR) at an annealing temperature lower to 400 C …

Thermoelectric performance enhancement of environmentally‐friendly SrTiO3 epitaxial films by hydrogen substitution

M Kimura, M Ochiai, X He, T Katase, H Hiramatsu… - EcoEnergy, 2024 - Wiley Online Library
Developing high‐efficiency and environmentally‐friendly thermoelectric materials has been
a significant challenge. Conventional thermometric materials consist of heavy (toxic) …

Distinguishing ion dynamics from muon diffusion in muon spin relaxation

TU Ito, R Kadono - Journal of the Physical Society of Japan, 2024 - journals.jps.jp
We propose a model to describe the fluctuations in the internal magnetic field due to ion
dynamics observed in muon spin relaxation (μ SR) by an Edwards–Anderson-type …

Hydrogen incorporation into amorphous indium gallium zinc oxide thin-film transistors

GW Mattson, KT Vogt, JF Wager… - Journal of Applied …, 2022 - pubs.aip.org
An experimental study is conducted in which the subgap trap density of states (DoS) is
measured by ultrabroadband photoconduction (UBPC) to examine hydrogen incorporation …

Novel approach to explore hydrogen trapping sites in aluminum: Integrating Muon spin relaxation with first-principles calculations

K Shimizu, K Nishimura, K Matsuda… - International Journal of …, 2024 - Elsevier
This paper provides a novel technique to explore hydrogen trapping in aluminum alloys by
combining muon spin relaxation and first-principles calculations. Zero-field muon spin …

Combining muon spin relaxation and DFT simulations of hydrogen trapping in Al6Mn

K Shimizu, K Nishimura, K Matsuda, S Akamaru… - Scripta Materialia, 2024 - Elsevier
Hydrogen at the mass ppm level causes hydrogen embrittlement in metallic materials, but
experimentally elucidating the hydrogen trapping sites is extremely difficult. We exploit the …

[HTML][HTML] Ambipolarity of diluted hydrogen in wide-gap oxides revealed by muon study

M Hiraishi, H Okabe, A Koda, R Kadono… - Journal of Applied …, 2022 - pubs.aip.org
Muon spin rotation has long been recognized as one of the few methods for experimentally
accessing the electronic state of dilute hydrogen (H) in semiconductors and dielectrics …

Effects of water and hydrogen introduction during In–Ga–Zn–O sputtering on the performance of low-temperature processed thin-film transistors

Y Magari, M Furura - Japanese Journal of Applied Physics, 2021 - iopscience.iop.org
Abstract In–Ga–Zn–O (IGZO) films were deposited by sputtering in Ar+ O 2+ H 2 and Ar+ H 2
O atmosphere to investigate the effects of H 2 and H 2 O introduction on physical and …