Essays about: "sulfur deposition"
Showing result 6 - 10 of 10 essays containing the words sulfur deposition.
-
6. Synthesis of CdZnS by Chemical Bath Deposition for Thin Film Solar Cells
University essay from Uppsala universitet/Fasta tillståndets elektronikAbstract : The buffer layer is a crucial component in thin film solar cells. Defects at the interface between absorber and buffer layer lead to high recombination rate and the band structure at the interface highly affects the performance of the solar cell. READ MORE
-
7. How Do Long-Term Declines in Anthropogenic Sulfur Dioxide Emissions and Sulfate Wet Deposition Compare with Trends in Freshwater Chemistry in Scandinavian Rivers?
University essay from Uppsala universitet/Institutionen för geovetenskaperAbstract : Acidification of precipitation is an important environmental problem that emerged during the past century, especially after the Second World War. Acidification was primarily caused by human-made emissions of SOx (mostly SO2) and NOx, which are oxidized sulfur and nitrogen gases. READ MORE
-
8. Simulation of how pressure influences the reactive sputtering process
University essay from Uppsala universitet/Fasta tillståndets elektronikAbstract : Sputtering is a physical vapor deposition (PVD) process used to create thin films, i.e very thin layers of material. To form compounds, such as oxides and nitrides, it may be beneficial to add a reactive gas to the process which is known as reactive sputtering. READ MORE
-
9. Long term organic carbon dynamics in 17 Swedish lakes : The impact of acid deposition and climate change
University essay from Uppsala universitet/Institutionen för geovetenskaperAbstract : During the last three decades, a number of studies based on national environmental monitoring data have found increased concentrations of total organic carbon (TOC) in surface waters in much of the northern hemisphere including Sweden. There are many hypothesis of what has been the main cause of this trend, including changes in land use, decreased atmospheric deposition of acidifying compounds and climate change. READ MORE
-
10. Tribological Performance of Novel Boron Dithiocarbamate Lubricant Additives
University essay fromAbstract : Different lubricant additives such as dialkyldithiophosphates (DTPs) of different metals have been extensively used as multifunctional additives to control wear and friction in mechanical systems. These additives can produce protective films on steel rubbing surfaces and, therefore, control friction and reduce wear. READ MORE
