Essays about: "Hexagonal"

Showing result 16 - 20 of 63 essays containing the word Hexagonal.

1. 16. Fabrication and Evaluation of Sb2Te3/PVDF Hybrid Thermoelectric Films

   University essay from KTH/Tillämpad fysik

   Author : Bo Yu; [2020]
   Keywords : ;

   Abstract : Thermoelectric (TE) materials and devices have been extensively studied for harvesting waste heat energy. There is more interest to fabricate TE materials and devices at low cost and highly-efficient ways. READ MORE

3. 17. Polymer Assisted Transfer of Graphene onto Semiconductor Substrates

   University essay from Lunds universitet/Förbränningsfysik; Lunds universitet/Synkrotronljusfysik

   Author : Jonathan Frisby; [2020]
   Keywords : Physics and Astronomy;

   Abstract : Since first being isolated in 2004, Graphene has been researched heavily because of its unique properties. Recently, interest has grown in graphene/semiconductor heterostructures. In this work, the transfer of graphene through the use of cellulose acetate butyrate (CAB) polymer is studied. READ MORE

4. 18. Investigating potential proton conductors: Doping BaTiO3 and SrTiO3 with Fe and Al

   University essay from Uppsala universitet/Strukturkemi

   Author : Julia Löfstrand; [2020]
   Keywords : Proton conductor; perovskite; solid state synthesis;

   Abstract : There are many interesting applications of proton conducting oxides, such as electrolytes in fuel cells, hydrogen sensors and catalytic membranes for hydrogenation or dehydrogenation of organic compounds. Previous work explored doping BaTiO3 with the Rare Earth Element (REE) Sc to introduce oxygen vacancies in the structure, making it a Proton Conductor (PC). READ MORE

5. 19. How to improve digital communication within course offerings

   University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

   Author : Hannes Bennet; Nina Nokelainen; [2019]
   Keywords : Kenya; Sweden; University; Digital communication; Learning Management System LMS ; Course offerings.;

   Abstract : A well working communication between students and lecturers, both in and outside of class, has shown to be very important for a positive learning experience and an effective learning environment. Students need to have a critical mindset of their own cognitive reasoning and their learning process. READ MORE

6. 20. Black-box optimization of simulated light extraction efficiency from quantum dots in pyramidal gallium nitride structures

   University essay from Linköpings universitet/Matematiska institutionen

   Author : Karl-Johan Olofsson; [2019]
   Keywords : Black-box optimization; Radial basis functions; Gallium nitride; light extraction efficiency; FDTD; surrogate functions; semiconductors; global optimization;

   Abstract : Microsized hexagonal gallium nitride pyramids show promise as next generation Light Emitting Diodes (LEDs) due to certain quantum properties within the pyramids. One metric for evaluating the efficiency of a LED device is by studying its Light Extraction Efficiency (LEE). READ MORE