Results 81 to 90 of about 82,641 (180)

Carrier freeze-out induced metal-insulator transition in oxygen deficient SrTiO3 films

, 2011
We report the optical, electrical transport, and magnetotransport properties of high quality oxygen deficient SrTiO3 (STO) single crystal film fabricated by pulsed laser deposition and reduced in the vacuum chamber. The oxygen vacancy distribution in the
Annadi, A., Ariando, Dhar, S., Gopinadhan, K., Huang, X. H., Huang, Z., Leusink, D. P., Liu, Z. Q., Lü, W. M., Srivastava, A., Venkatesan, T., Wang, X., Zeng, S. W., Zhao, Y. L.   +13 more
core   +2 more sources

Facile Strategy for Synthesizing Non-Stoichiometric Monoclinic Structured Tungsten Trioxide (WO3−x) with Plasma Resonance Absorption and Enhanced Photocatalytic Activity

Nanomaterials, 2018
Oxygen vacancy defects play an important role in improving the light-capturing and photocatalytic activity of tungsten trioxide (WO3). However, the hydrogen treatment method that is commonly used to introduce oxygen vacancies is expensive and dangerous ...
Shihao Chen, Yang Xiao, Wei Xie, Yinhai Wang, Zhengfa Hu, Wei Zhang, Hui Zhao   +6 more
doaj   +1 more source

First-principles study of surface properties of PuO2: Effects of thickness and O-vacancy on surface stability and chemical activity

, 2012
The (111), (110), and (001) surfaces properties of PuO2 are studied by using density-functional theory+U method. The total-energy static calculations determine the relative order of stability for low-index PuO2 surfaces, namely, O-terminated (111) > (110)
Andersson, Atta-Fynn, Blöchl, Bo, Bo Sun, Boettger, Butterfield, Butterfield, Dudarev, Dudarev, Dudarev, Finnis, Franchini, Freund, Fronzi, Gouder, Guangcai Zhang, Haifeng Liu, Haifeng Song, Haschke, Haschke, Heathman, Hui Zheng, Idriss, Jomard, Jung, Korzhavyi, Kresse, Kresse, McNeilly, Monkhorst, Moore, Noguera, Noguera, Perdew, Perdew, Petit, Petit, Ping Zhang, Pirovano, Prodan, Prodan, Reuter, Shi, Skorodumova, Sun, Söderlind, Tasker, Taylor, Wu, Wu, Xiangeng Zhao, Yin, Zhang   +53 more
core   +1 more source

Boosting Visible-Light Photocatalytic Activity of BiOCl Nanosheets via Synergetic Effect of Oxygen Vacancy Engineering and Graphene Quantum Dots-Sensitization

Molecules
In recent years, oxygen vacancy (VO) engineering has become a research hotspot in the field of photocatalysis. Herein, an efficient GQDs/BiOCl-VO heterojunction photocatalyst was fabricated by loading graphene quantum dots (GQDs) onto BiOCl nanosheets ...
Zisheng Shi, Wei Chen, Yin Hu, Fen Zhang, Lingling Wang, Dan Zhou, Xuanye Chen, Sugang Meng   +7 more
doaj   +1 more source

Charge Distribution Near Oxygen Vacancies in Reduced Ceria

, 2009
Understanding the electronic charge distribution around oxygen vacancies in transition metal and rare earth oxides is a scientific challenge of considerable technological importance.
McKenzie, Ross H., Shoko, E., Smith, M. F.   +2 more
core   +1 more source

Unraveling ionic switching dynamics in high-k dielectric double-gate transistors via low-frequency noise spectroscopy

Nano Convergence
High-k dielectric materials such as HfO2 have garnered significant attention for their potential applications in advanced electronic devices due to their superior dielectric properties.
Soi Jeong, Chang-Hyeon Han, Been Kwak, Ryun-Han Koo, Youngchan Cho, Jangsaeng Kim, Jong-Ho Lee, Daewoong Kwon, Wonjun Shin   +8 more
doaj   +1 more source

Strain-engineered flexoelectricity and oxygen vacancy dynamics for modulating interfacial charge transport in BaTiO3

Journal of Materiomics
Strain engineering has emerged as a powerful strategy for tailoring the ferroelectric properties and interfacial charge transport behaviors in complex oxide heterostructures. However, the underlying coupling mechanisms between strain-induced polarization
Guoyang Shen, Zhibin Wen, Zhiguo Wang, Longlong Shu   +3 more
doaj   +1 more source

Enhanced photoluminescence and Raman properties of Al-Doped ZnO nanostructures prepared using thermal chemical vapor deposition of methanol assisted with heated brass.

PLoS ONE, 2015
Vapor phase transport (VPT) assisted by mixture of methanol and acetone via thermal evaporation of brass (CuZn) was used to prepare un-doped and Al-doped zinc oxide (ZnO) nanostructures (NSs).
Tamil Many K Thandavan, Siti Meriam Abdul Gani, Chiow San Wong, Roslan Md Nor   +3 more
doaj   +1 more source

Oxygen Vacancies in Spinels

Spinel oxides, with the general formula AB2O4, are a class of ternary transition metal compounds renowned for their diverse elemental composition and tunable electronic properties. Their cubic crystal structure, belonging to the Fd-3 m space group, features metal ions in both tetrahedral and octahedral coordination centers, which can be manipulated to ...
openaire   +1 more source

Compositional engineering of Sr-substituted perovskite oxygen carriers for selective ethylene production via chemical looping oxidative dehydrogenation

Fuel Processing Technology
Chemical looping oxidative dehydrogenation (CL-ODH) is a promising route for selective ethylene production, but its performance is highly dependent on the phase stability, oxygen reactivity, and defect chemistry of oxygen carriers, which remain difficult
Sang Jun Park, Seung Hun Baek, Hyang Dong Kim, Jung Min Sohn   +3 more
doaj   +1 more source