نتایج جستجو برای: interdiffusion
تعداد نتایج: 860 فیلتر نتایج به سال:
Abstract Interdiffusion between dissimilar solids can change the properties of joined materials. Although much work has been done to study experimentally and theoretically interdiffusion in one-dimensional (1-D) diffusion couples, studying two-dimensional (2-D) or three-dimensional (3-D) remains a challenge. In this article, we report an experiment develop model multicomponent system 2-D geomet...
The growth and interdiffusion of Ti and Ni on a Mo( 110) surface have been studied by Auger electron spectroscopy (AES), low energy electron diffraction (LEED) and temperature programmed desorption spectroscopy (TPD). Ti grows layer-by-layer upon deposition on MO{ 110) at 115 K, whereas annealing multifaye~ of Ti to 900 K causes formation of Ti three-dimensional clusters. Submonolayer Ti on Mo(...
In this paper we present results of a study of interdiffusion in HgTe/CdTe heterostructures. Our samples were grown by MBE at HRL Laboratories and had Cd x values ranging from 0.2 to 0.35. The samples were annealed at temperatures ranging from 250 °C to 425 °C in both Hg vapor and vacuum ambients. The samples annealed under vacuum were coated with a layer of CdTe prior to annealing. The data we...
Steric Effects in Ionic Pairing and Polyelectrolyte Interdiffusion within Multilayered Films: A Neutron Reflectometry Study Li Xu, John F. Ankner,* and Svetlana A. Sukhishvili* Department of Chemistry, Chemical Biology and Biomedical Engineering, Stevens Institute of Technology, Hoboken, New Jersey 07030, United States Spallation Neutron Source, Oak Ridge National Laboratory, Oak Ridge, Tenness...
The perovskite CH3NH3PbI3 was prepared on a mesoscopic TiO2 film, starting from electrodepositing PbO, to iodination to PbI2, and then interdiffusion reaction with CH3NH3I. The as-prepared film was used as a light absorber for the perovskite solar cells, exhibiting a high PCE of 12.5% under standard AM 1.5 conditions.
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