Sökning: "Hard X-Ray Photoelectron Spectroscopy"

Visar resultat 21 - 25 av 32 avhandlingar innehållade orden Hard X-Ray Photoelectron Spectroscopy.

1. 21. Thin Film Synthesis of New Nanolaminated Ternary Carbides

   Författare :Chung-Chuan Lai; Johanna Rosén; Per Eklund; Ola Wilhelmsson; Linköpings universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

   Sammanfattning : Ternary transition metal carbides with inherently nanolaminated crystal structure are a class of materials with typically higher damage tolerance, better machinability and lower brittleness compared to the binary counterparts, yet retaining their satisfactory electrical and thermal conductivity. Their interesting properties can be related to the laminated structure. LÄS MER

3. 22. Corrosion and Surface Studies of Stainless Steel and Chromium Carbide Thin-Films

   Författare :Jonas Högström; Leif Nyholm; Kristina Edström; Patrik Schmutz; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; corrosion; electrochemistry; thin film; stainless steel; passive film; chromium carbide; carbon oxidation; surface; depth profile; XPS; SEM; EQCM; sputtering;

   Sammanfattning : Although the passive films that form on stainless steels have been extensively studied, the concentration depth profiles are not fully understood. Their thinness makes passive films hard to study, but angle-resolved X-ray photoelectron spectroscopy (ARXPS) is a non-destructive technique that can be used to obtain depth information. LÄS MER

4. 23. Development of new characterization techniques for III-V nanowire devices

   Författare :Olof Persson; Synkrotronljusfysik; []
   Nyckelord :STM; XPS; Semiconductor nanowires; nanowire devices; top contact mode; HAXPES; Fysicumarkivet A:2017:Persson;

   Sammanfattning : This dissertation presents the new methods and techniques developed to investigate the properties of nanowires (NWs) and NW devices and the results obtained using these methods. The growth and characterization of NWs have become a large research field because NWs have been shown to improve the properties of many semiconductor applications such as transistors, solar cells, and light emitting diodes. LÄS MER

5. 24. Realization of Sodium-ion Batteries : From Electrode to Electrolyte Materials

   Författare :Ronnie Mogensen; Reza Younesi; Daniel Brandell; Kang Xu; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Sodium-ion batteries; electrolytes; Prussian white; Chemistry with specialization in Inorganic Chemistry; Kemi med inriktning mot oorganisk kemi;

   Sammanfattning : Batteries are among the most important technologies required to enable the world to move beyond fossil fuels towards a more efficient and environmentally friendly society based on electricity from renewable sources. Unfortunately, the rapidly increasing number and size of batteries that the world needs in order to perform this paradigm shift is putting enormous strain on the supply of traditional raw materials for batteries, such as lithium and cobalt. LÄS MER

7. 25. Fullerene-like CNx and CPx Thin Films; Synthesis, Modeling, and Applications

   Författare :Andrej Furlan; Lars Hultman; Brian Holloway; Linköpings universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Phosphorus-carbide CPx ; carbon nitride CNx ; thin films; resilient coatings; magnetron sputtering; theoretical modeling; Material physics with surface physics; Materialfysik med ytfysik;

   Sammanfattning : This Thesis concerns the development of fullerene-like (FL) carbon nitride (CNx) thin films and the discovery of phosphorus-carbide (CPx) compounds. The work dedicated to CPx include first-principles theoretical simulations of the growth and properties of FL-CPx structures. LÄS MER