Essays about: "luminescence"

Showing result 1 - 5 of 57 essays containing the word luminescence.

1. 1. 3D printer in dosimetry and mammography – designing and testing an OSL dosemeter holder and a low contrast-detail phantom

   University essay from Lunds universitet/Sjukhusfysikerutbildningen

   Author : Måns Boll; [2022]
   Keywords : Medicine and Health Sciences;

   Abstract : Introduction: Today, 3D printing is a versatile tool used in a wide range of fields. With the advent of more cost-effective fused deposition modelling (FDM) 3D printing technologies it is time to investi- gate what such a 3D printer has to offer in radiation science applications. READ MORE

3. 2. 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

4. 3. OSL dating of the Mesolithic site Nilsvikdalen 7, Bjorøy, Norway.

   University essay from Lunds universitet/Geologiska institutionen

   Author : Elin Jirdén; [2022]
   Keywords : OSL dating; luminescence; SAR protocol; water content; archaeology; Late Mesolithic; Norway.; Earth and Environmental Sciences;

   Abstract : Luminescence dating is a well-established dating method within geological and archaeological research. However, the use of luminescence dating, and more specifically optically stimulated luminescence (OSL), is currently underutilised in Norwegian archaeology. READ MORE

5. 4. Synthesis of a rotaxane with switchable lanthanide luminescence

   University essay from KTH/Organisk kemi

   Author : Anja Ramström; [2022]
   Keywords : mechanically interlocked molecules; supramolecular chemistry; luminescence; rotaxanes; lanthanides; mekaniskt sammankopplade molekyler; supramolekylär kemi; luminescens; rotaxaner; lantanider;

   Abstract : I rotaxaner följs förflyttningen av makrocykeln vanligtvis med 1H-NMR spektroskopi. Målet med detta projekt är i stället att utveckla ett system som möjliggör att förflyttningen av makrocykeln kan observeras med hjälp av luminiscerande lantanid emission. READ MORE

6. 5. Birch leaf carbon dots: characterization and application in a light-emitting electrochemical cell

   University essay from Umeå universitet/Institutionen för fysik

   Author : Märta Gregorsson; [2022]
   Keywords : carbonized polymer dot; carbon dots; light-emitting electrochemical cell; pheophytin; solid-state luminescence; self-quenching; aggregation-caused-quenching; host-guest system;

   Abstract : A new rising star in the carbon nanomaterial family is carbon dots. Carbon dots have received great attention due to their excellent luminescence and low toxicity. In this project, a new carbon dot derived from birch leaves is studied and characterized. READ MORE