Essays about: "GaAs"

Showing result 1 - 5 of 50 essays containing the word GaAs.

1. 1. Fabrication and characterization of GaAsxP1-x single junction solar cell on Si for III-V/Si tandem solar cell

   University essay from KTH/Tillämpad fysik

   Author : Elaheh Aghajafari; [2023]
   Keywords : III-V semiconductor; GaAsxP1-x heteroeputaxy; hydride vapor phase epitaxy; III-V Si solar cell; III-V halvledare; GaAsxP1-x epitaxiallager; hydridångfasepitaxi; III-V Si solcell;

   Abstract : Silicon based solar cells have been used as photovoltaic devices for decades due to reasonable cost and environment- friendly nature of silicon. But the conversion efficiency of silicon solar cell is limited; for instance, the maximum conversion efficiency of a crystalline silicon solar cell available in the market developed by Kaneka Corporation is 26 % [1]. READ MORE

3. 2. In-situ Growth of Sn-seeded GaAs and GaSb Nanowire Heterostructures

   University essay from Lunds universitet/Centrum för analys och syntes

   Author : Azemina Kraina; [2023]
   Keywords : nanowire; heterostructure; ETEM; MOCVD; TEM; in-situ; Sn; GaAs; GaSb; materials chemistry; Technology and Engineering; Chemistry;

   Abstract : One of the ways to utilize III-V nanowires, is to make use of the possibility to combine materials and create heterostructures which allows for creating material combinations with new properties. A special interest can be taken into Sb-containing nanowires due to the high electron mobility, however there has been reported difficulties with switching to other materials because of a 'memory effect' where Sb lingers in the system and nanowire. READ MORE

4. 3. En enkätstudie om laserterapi inom rehabilitering av djur : med fokus på sårläkning och osteoartrit

   University essay from SLU/Dept. of Clinical Sciences

   Author : Amanda Avinder; Robin Lek; [2021]
   Keywords : laserterapi; osteoartrit; rehabilitering; smådjur; sårläkning;

   Abstract : Laserterapi används alltmer vid rehabilitering av djur och vikten av att använda vetenskapligt evidensbaserade metoder för att öka patientsäkerheten är stor. Forskning inom laserterapin visar varierande resultat och utvärderingen av dessa försvåras då försöksmetoderna skiljer sig från varandra. READ MORE

5. 4. Aerotaxy-grown GaAs nanowires using Ga seed particles

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

   Author : Eric Ceccarelli; [2021]
   Keywords : Aerotaxy; GaAs nanowires; epitaxy; self-catalized growth; self-seeded growth; Ga seeded GaAs nanowires; Ga seeded GaP nanowires; Technology and Engineering;

   Abstract : Aerotaxy offers an alternative method for the manufacturing of semiconductor nanowires. Instead of seeding growth on an expensive substrate, aerosol seed particles act as the catalyst for the Vapor–Liquid–Solid growth in a hot flow through reactor. READ MORE

6. 5. Hot Carriers in Thin-film Absorbers

   University essay from KTH/Skolan för industriell teknik och management (ITM)

   Author : Qingrong Zhang; [2021]
   Keywords : hot carrier solar cells; photoluminescence; generalized Planck’s law; band filling; thin-film absorbers; heta bärarsolceller; fotoluminescens; generaliserad Plancks lag; bandfyllning; tunnfilmsabsorberare;

   Abstract : Solar energy is one of the most promising sources of confronting the energy crisis. And hot carrier solar cell can be the future to increase the efficiency of solar cells to exceed to the theoretical efficiency limit, Shockley-Queisser limit. READ MORE