Measurement of the Dependence of Stress and Strain on Crystallographic Orientation in Cu and Al thin Films

1994 ◽  
Vol 356 ◽  
Author(s):  
E. M. Zielinski ◽  
R. P. Vinci ◽  
J. C. Bravman
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Yield Stress ◽  
Grain Growth ◽  
Crystallographic Orientation ◽  
Room Temperature ◽  
Abnormal Grain Growth ◽  
Stress And Strain ◽  
Al Thin Film ◽  
Individual Grains

AbstractThe orientational dependence of stress and strain was measured for (111) and (110) oriented grains in an Al thin film which hillocked upon heating, and (111) and (100) oriented grains in Cu thin films, one of which exhibits abnormal (100) grain growth. Results from the Al thin film were inconclusive in the evaluation of the Sanchez model for hillocking, however they indicate that the Nix model for the orientational dependence of yield stress is not applicable to individual grains at room temperature. Results from the Cu thin films suggest that suppression of (100) abnormal grain growth is due to isostress averaging among the grains of varying orientation.

Studies on Water in the Hydration Chamber of a Modified Electron Microscope

1970 ◽  
Vol 28 ◽  
pp. 544-545
Author(s):  
R. C. Moretz ◽  
G. G. Hausner ◽  
D. F. Parsons
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Electron Microscope ◽  
Steady State ◽  
Room Temperature ◽  
Small Mass ◽  
Equilibrium Pressure ◽  
Biological Objects ◽  
Mechanical Pump ◽  
Differential Pumping

Use of the electron microscope to examine wet objects is possible due to the small mass thickness of the equilibrium pressure of water vapor at room temperature. Previous attempts to examine hydrated biological objects and water itself used a chamber consisting of two small apertures sealed by two thin films. Extensive work in our laboratory showed that such films have an 80% failure rate when wet. Using the principle of differential pumping of the microscope column, we can use open apertures in place of thin film windows.Fig. 1 shows the modified Siemens la specimen chamber with the connections to the water supply and the auxiliary pumping station. A mechanical pump is connected to the vapor supply via a 100μ aperture to maintain steady-state conditions.

A facile room temperature chemical transformation approach for binder-free thin film formation of Ag2Te and lithiation/delithiation chemistry of the film

2016 ◽  
Vol 45 (43) ◽  
pp. 17312-17318 ◽  
Author(s):  
Eun-Kyung Kim ◽  
Dasom Park ◽  
Nabeen K. Shrestha ◽  
Jinho Chang ◽  
Cheol-Woo Yi ◽  
...  
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Aqueous Solution ◽  
Ion Exchange ◽  
Chemical Transformation ◽  
Room Temperature ◽  
Film Formation ◽  
Synthetic Method ◽  
Binder Free ◽  
Thin Film Formation

An aqueous solution based synthetic method for binder-free Ag2Te thin films using ion exchange induced chemical transformation of Ag/AgxO thin films.

Microstructural characterization of abnormal grain growth behavior of Al-doped ZnO in thin film solar cells

2012 ◽  
Vol 44 (11-12) ◽  
pp. 1427-1430
Author(s):  
Hui-Youn Shin ◽  
M. H. Joo ◽  
S. K. Moon ◽  
T. H. Moon ◽  
K. H. Park
Keyword(s):  
Thin Film ◽  
Solar Cells ◽  
Grain Growth ◽  
Microstructural Characterization ◽  
Growth Behavior ◽  
Abnormal Grain Growth ◽  
Thin Film Solar Cells ◽  
Doped Zno ◽  
Grain Growth Behavior

Characterization of the order-annealing response of nanostructured iron-palladium based ferromagnetic thin-films

2001 ◽  
Vol 703 ◽  
Author(s):  
Huiping Xu ◽  
Adam T. Wise ◽  
Timothy J. Klemmer ◽  
Jörg M. K. Wiezorek
Keyword(s):  
Thin Films ◽  
Grain Growth ◽  
Room Temperature ◽  
Si Substrate ◽  
Ferromagnetic Thin Films ◽  
Precipitation Reactions ◽  
Post Deposition ◽  
Xrd And Tem ◽  
Iron Palladium

ABSTRACTA combination of XRD and TEM techniques have been used to characterize the response of room temperature magnetron sputtered Fe-Pd thin films on Si-susbtrates to post-deposition order-annealing at temperatures between 400-500°C. Deposition produced the disordered Fe-Pd phase with (111)-twinned grains approximately 18nm in size. Ordering occurred for annealing at 450°C and 500°C after 1.8ks, accompanied by grain growth (40-70nm). The ordered FePd grains contained (111)-twins rather than {101}-twins typical of bulk ordered FePd. The metallic overlayers and underlayers selected here produced detrimental dissolution (Pt into Fe-Pd phases) and precipitation reactions between Pd and the Si substrate.

Effects of barrier layer and annealing on abnormal grain growth in copper thin films

1994 ◽  
Vol 76 (8) ◽  
pp. 4516-4523 ◽  
Author(s):  
E. M. Zielinski ◽  
R. P. Vinci ◽  
J. C. Bravman
Keyword(s):  
Thin Films ◽  
Grain Growth ◽  
Barrier Layer ◽  
Abnormal Grain Growth

Synthesis of CaWO4:(Eu3+,Tb3+) Thin Films by a Two-Step Method at Room Temperature

2013 ◽  
Vol 710 ◽  
pp. 170-173
Author(s):  
Lian Ping Chen ◽  
Yuan Hong Gao
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Phase Composition ◽  
Room Temperature ◽  
Electrochemical Techniques ◽  
Luminescent Properties ◽  
X Ray Diffraction ◽  
Step Method ◽  
X Ray ◽  
Rare Earth Doped

It is hardly possible to obtain rare earth doped CaWO4thin films directly through electrochemical techniques. A two-step method has been proposed to synthesize CaWO4:(Eu3+,Tb3+) thin films at room temperature. X-ray diffraction, energy dispersive X-ray analysis, spectrophotometer were used to characterize their phase, composition and luminescent properties. Results reveal that (Eu3+,Tb3+)-doped CaWO4films have a tetragonal phase. When the ratio of n (Eu)/n (Tb) in the solution is up to 3:1, CaWO4:(Eu3+,Tb3+) thin film will be enriched with Tb element; on the contrary, when the ratio in the solution is lower than 1:4, CaWO4:(Eu3+,Tb3+) thin film will be enriched with Eu element. Under the excitation of 242 nm, sharp emission peaks at 612, 543, 489 and 589 nm have been observed for CaWO4:(Eu3+,Tb3+) thin films.

Simulation of thin film grain structures—II. Abnormal grain growth

1992 ◽  
Vol 40 (4) ◽  
pp. 779-793 ◽  
Author(s):  
H.J. Frost ◽  
C.V. Thompson ◽  
D.T. Walton
Keyword(s):  
Thin Film ◽  
Grain Growth ◽  
Abnormal Grain Growth ◽  
Grain Structures

scholarly journals A tunable volatile organic compound sensor by using PtOx/GQDs/TiO2 nanocomposite thin films at room temperature under visible-light activation

RSC Advances ◽  
2017 ◽  
Vol 7 (63) ◽  
pp. 39859-39868 ◽  
Author(s):  
Shaofeng Shao ◽  
Yunyun Chen ◽  
Shenbei Huang ◽  
Fan Jiang ◽  
Yunfei Wang ◽  
...  
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Visible Light ◽  
Gas Sensors ◽  
Room Temperature ◽  
Light Activation ◽  
Nanocomposite Thin Film ◽  
Nanocomposite Thin Films ◽  
Volatile Organic ◽  
Visible Light Activation

Pt/GQDs/TiO2 nanocomposite thin film-based gas sensors show tunable VOC sensing behaviour at room temperature under visible-light activation.

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