Essays about: "Kemisk fysik"

Showing result 1 - 5 of 23 essays containing the words Kemisk fysik.

1. 1. Photo-physical properties of up-converting NaYF4:Yb-Er,Yb-Mn nanocrystals

   University essay from KTH/Tillämpad fysik

   Author : Hongjian Wu; [2022]
   Keywords : Appled Physics; Tillämpad fysik;

   Abstract : Rare earth-doped upconversion nanoparticles can emit light with various wavelength from ultraviolet to infrared when excited by near-infrared light. The superior properties including long luminescence lifetime, narrow emission spectra, low toxicity and high chemical stability makes it a promising optical material in bioimaging and other applications. READ MORE

3. 2. Sustaining Orientation of Ubiquitin for Single Particle Imaging Using Electric Fields

   University essay from Uppsala universitet/Kemisk och biomolekylär fysik; Uppsala universitet/Energimaterialens fysik

   Author : Adi Bijedic; [2021]
   Keywords : ;

   Abstract : Single-particle imaging, or SPI, is a method used to obtain the three-dimensional structure of particles. Repeatedly aiming X-rays at samples of a particle produces diffraction patterns, which are combined to a best-fit three-dimensional model of the particle. SPI of proteins can be improved by orienting the protein before imaging. READ MORE

4. 3. Film formation of mixed-halide perovskites for PSCs

   University essay from Lunds universitet/Fasta tillståndets fysik; Lunds universitet/Fysiska institutionen

   Author : Lina Ekstedt; [2021]
   Keywords : Mixed Halide Perovskites; Perovskite Solar Cells; Bandgap Tuning; In-situ Spectroscopy; Antisolvent; Interface Modifier.; Physics and Astronomy;

   Abstract : Over the last few years there has been a steady increase in interest in the exploration of perovskite materials within photovoltaic research. This can to a large extent be attributed to the incredible pace at which solar cells based on perovskites have improved in efficiency during the same time period. READ MORE

5. 4. The use of graphene quantum dots as detection elements in nanomaterials-based sensors for forensic applications

   University essay from KTH/Tillämpad fysik

   Author : Xiaofan Ma; [2021]
   Keywords : Graphene Quantum Dots; Amphetamine; Cocaine; Chemical Sensor; Forensic Drugs; Grafenkvantprickar; amfetamin; kokain; kemisk sensor; rättsmedicinska läkemedel;

   Abstract : The large-scale abuse and addiction of narcotics such as amphetamine and cocaine have become a global problem. In this project, we innovatively use graphene quantum dots (GQDs) as a fluorescent sensor to detect and quantify amphetamine and cocaine. This technology will have broad forensic application prospects. READ MORE

6. 5. Carbon materials from biomass for supercapacitors

   University essay from KTH/Tillämpad fysik

   Author : Jaskaran Singh Malhotra; [2020]
   Keywords : Supercapacitors; Activated Carbon; Energy Storage; Biomass conversion; Electrochemical Energy Storage; Pyrolysis; Superkapacitatorer; Aktivt kol; Energilagring; Biomassa omvandling; Elektrokemisk energilagring; Pyrolys;

   Abstract : The fast pyrolysis plant at RISE – ETC, Piteå produces carbon rich chars in bulk from various sources of biomass as feedstock. These in-house manufactured carbon rich chars were upgraded via pyrolysis as well as chemical activation using KOH to enhance their potential as an electrode material for supercapacitors. READ MORE