Sökning: "collector profile"
Visar resultat 1 - 5 av 7 avhandlingar innehållade orden collector profile.
1. High Frequency Characterization and Modeling of SiGe Heterojunction Bipolar Transistors
Sammanfattning : .... LÄS MER
2. Depth Profiling of the Passive Layer on Stainless Steel using Photoelectron Spectroscopy
Sammanfattning : The physical properties of the protective passive films formed on the surface of stainless steels under electrochemical polarization in different electrolytes were studied. The structure of these films was analyzed as a function of depth using photoelectron spectroscopy (PES). LÄS MER
3. Retrofitted Solar Domestic Hot Water System for Single-Family Electrically-Heated Houses: Development and testing
Sammanfattning : In Sweden, there are roughly half a million single family houses that use electric heating for both domestic hot water production and space heating. Since electricity is the most expensive energy source in Sweden, it is interesting to install a high solar fraction solar thermal system to reduce the energy use in these houses. LÄS MER
4. Lignin- and PAN-based carbon fibres as negative electrodes for alkali-ion batteries
Sammanfattning : The development of sodium-ion batteries (SIBs) and potassium-ion batteries (KIBs) have accelerated since they can now reach similar gravimetric energy densities as lithium-ion batteries (LIBs) but with a lower environmental impact. Hard carbon is the most common negative electrode for SIBs and KIBs and can be made from renewable resources such as lignin. LÄS MER
5. Carbon nanomaterial-based interconnects, integrated capacitors and supercapacitors
Sammanfattning : The constant miniaturization and steady performance improvement of electronics devices have generated innovative ideas such as internet of thing (IoT), which also includes devices with integrated energy sources. The high performance is conceived by the high density of the devices on a chip leading to a high density of interconnects, to connect these devices to outside world. LÄS MER