Investigating the Chemical Nature of Cathode Coatings under Electrochemical Cycling

The advancements in the field of e-mobility today far outpace all prior projections, and the rate of progress is quick. Due to their high power density and energy density, Lithium-Ion Batteries (LIBs) have grown to be an increasingly appealing alternative for use in electric vehicles. However, over extended use, these batteries frequently...

Quantifying the Wettability of ALD-Coated Micro-Particles

This research aimed to enhance and quantify the wettability and water affinity of Expancel microparticles which generally demonstrates a lack of affinity with water. To enhance their water affinity, hydrophilic coatings like SiO2 and TiO2 were deposited onto the microparticles using atomic layer deposition (ALD). Various experimental techniques...

Bi-Directional Tuning of Josephson Junction Resistance

One of the main components used in superconducting quantum chips is the Josephson junction. Currently when fabricating Josephson junctions, the resistance uniformity at wafer-scale is not optimal. It is also known that an annealing process can alter the junction resistance and with it the qubit frequency. However, laser annealing has only shown...

Hydrogenated Indium Oxide (IO:H) by Plasma Enhanced Spatial Atomic layer deposition for thin film PV application

Hydrogenated Indium Oxide (IOH) has been recognized as a high performance transparent conductive oxide (TCO) due to its excellent mobility (>100 cm2/Vs) and high transparency (>90%) in the visible and near infrared region of the spectrum. Plasma enhanced spatial atomic layer deposition (PESALD), a new type of deposition process developed...

Ceramic nanofiltration membranes: Rejection of salts and NOM at high ionic strength and modification of pore size by atomic layer deposition

Natural Organic Matter (NOM) is always present in the drinking water sources such as rivers, lakes and reservoirs. It causes several problems, including the unfavourable colour and odour of water, formation of disinfectant by-products and harmful microbial growth. In drinking water treatment, anion exchange (anion-IEX) is used for NOM removal....

Ultra-Thin Integrated ALD Alumina Electron-transparent Windows for Nanoreactor Applications

<br/>Nanocatalysis has received considerable attention in the scientific community due to their superior reactivity compared to their macro-sized counterparts. MEMS nanoreactors allow scientists to view these reactions in-situ. This opens up doors to finally understanding the underlying mechanisms of the nanocatalyst's effectiveness, which may...

Atomic Layer Deposition for Synthesis of Ceramic Tight UF Membrane

Ceramic membranes are gaining more and more attention due to their inherent advan- tages compared with polymeric membranes. Their high thermal, mechanical and chem- ical stability make them more applicable in treating e.g. corrosive and hot wastewater. With their small pore sizes, the ceramic tight ultrafiltration (tight UF) membranes show a...

Application of Atomic Layer Deposition on Ceramic Nanofiltration Membrane

Pressure driven membranes have become increasingly popular in removal of natural organic matter (NOM). With the purpose to tailor pore size of membrane to remove NOM effectively, atomic layer deposition (ALD) was applied on the ceramic nanofiltration (NF) membrane with a pore size of 1.3 nm. Ceramic membranes were chosen as the substrate...

Strategies for Dendrite-free Lithium and Sodium Metal Anodes

As the public demand for electric vehicles and consumer electronics grows at an exponential rate, traditional energy storage systems like lithium-ion batteries are proving to be insufficient. A potential candidate to replace these conventional systems is the lithium metal battery. However, replacing the anode of lithium-ion batteries with...

Absorber and interfaces of kesterite solar cells

In the previous decade, Cu2ZnSn(S,Se)4 (kesterite) compounds have attracted the interest of several research groups across the world. Their efforts have improved this technology from 5 % power conversion efficiency in 2004 to above 13 % in 2017 (communicated but not published) [1]. This thesis begins with an assessment of the current status of...

Photocatalytic Enhancement of SiO2 coated Degussa P25 TiO2 Nanoparticles by Scalable Atmospheric Pressure Atomic Layer Deposition

This work investigates the enhancement of photocatalytic activity of titanium dioxide (TiO2) commercial particles by ultrathin silicon dioxide (SiO2) films deposited via atmospheric pressure atomic layer deposition (ALD) carried out in fluidized bed reactor (FBR). The ALD process enabled precise control for the growth of ultrathin film at sub...

Photocatalytic Properties of SiO2 coated Degussa P25 TiO2 Nanoparticles by Scalable Atmospheric Pressure Atomic Layer Deposition

A precise control for the growth of thin film powered by atmospheric pressure atomic layer deposition (ALD) carried out in fluidized bed reactor makes the ultrathin conformal coating of SiO2 on Degussa P25 TiO2 nanoparticles possible. At an operating temperature which can be lowered to room temperature (~27°C), the growth per cycle (GPC) smaller...

Smart release of corrosion inhibitors by a novel encapsulation method

The objective of this project is to explore the feasibility of atomic layer deposition (ALD) and molecular layer deposition (MLD) as methods for the encapsulation of corrosion inhibitor. It is desirable to encapsulate the inhibitors before incorporation into the coating in order to provide a smart release only at specific conditions (acidic and...