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Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 9 of 9 for “"barium oxide"”.
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Barium Oxide as an Intermediate Layer for Polymer Tandem Solar Cell
… or complicated manipulation disadvantages. Barium oxide (BaO) is both high conductive and wide bandgap n-type semiconductor. We successfully fabricated the polymer tandem solar cell using all thermal vacuum deposition fashion with BaO/Ag/MoO3 as an intermediate layer. VOC of the tandem …
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Electrical properties of binary solutions of molten titanium dioxide-barium oxide
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Materials Science and Engineering, 1996.
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The effect of various slag constituents on the distribution of phosphorus between slag and metal
… phosphorus determination. The effects of calcium oxide, barium oxide, calcium fluoride, and magnesium oxide were investigated. For similar basicity ratios barium oxide was found to be a better dephosphorizing agent than any of the other constituents tested. Calcium fluoride's effectiveness as a …
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Gradient-Index (GRIN) lenses by Slurry-based Three-Dimensional Printing (S-3DP)
… A1203-SiO₂ material system, also was developed. Barium acetate was used as the dopant source. The pre-sintering treatment was found to be 900 ⁰C for 18 hours in air to convert barium acetate to barium oxide. The sintering condition was found to be 1725 ⁰C for 10 minutes in vacuum. A barium …
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Hollow cathode life time modelling
… in this thesis consists of three parts: a barium oxide<br/>depletion model, a low work function surface coverage model and a plasma update<br/>procedure to calculate the effects that a change in the insert surface work function will<br/>produce on the cathode plasma.<br/><br/>The …
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Timing Diagnostics and Coherent Harmonics from a test-FEL
… elliptical undulator. A thermionic gun with a barium oxide cathode was adapted for photocathode operation, and the performance of the gun was tested. Measurements showed the production of 200 pC of electrons with a normalized emittance of 5.5 mmmrad and a quantum efficiency of 1.1 10-4. To …
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Metal oxide/organic interface investigations for photovoltaic devices
This thesis outlines investigations of metal oxide / organic interfaces in photo- voltaic devices. It focuses on device instabilities originating from the metal oxide layer surface sensitivity and it presents suggested mechanisms behind these in- stabilities. A simple sol-gel solution deposition …
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Self-Assembled Barium Titanate Nanoscale Films by Molecular Beam Epitaxy
… during growth. Historically, the growth of barium titanate (BaTiO3) by molecular beam epitaxy has relied on a growth technique called shuttered RHEED. Shuttered RHEED controls the stoichiometry of barium titanate through the precise deposition of alternating layers of BaO and TiO2. While …