Sökning: "photoluminescence PL"

Visar resultat 1 - 5 av 26 uppsatser innehållade orden photoluminescence PL.

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

   Master-uppsats, KTH/Tillämpad fysik

   Författare :Elaheh Aghajafari; [2023]
   Nyckelord :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;

   Sammanfattning : 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]. LÄS MER

3. 2. Modulation of the optical properties of quantum dots by surface acoustic waves

   Master-uppsats, KTH/Tillämpad fysik

   Författare :Tanguy Schetelat; [2023]
   Nyckelord :Nanophotonics; Quantum dots; Surface acoustic waves; Interdigital tansducers; Optomechanical coupling; Nanofotonik; Kvantprickar; Akustika yt-vågor; Interdigital tansducers; Optomekanisk koppling;

   Sammanfattning : Semiconductor quantum dots (QDs) are considered to be a crucial part of future quantum technologies due to their enormous potential as efficient sources of single and indistinguishable photons. Single photons are necessary to transport quantum information over large distances through the existing global fibre optic network. LÄS MER

4. 3. Construction of a scanning confocal microscope for Quantum Dot mapping at telecom wavelength

   Master-uppsats, KTH/Tillämpad fysik

   Författare :Alexandros Bampis; [2023]
   Nyckelord :Nanophotonics; Quantum Dot Positioning; Photoluminescence Mapping; Scanning Microscope; Nanofotonik; Positionering av kvantprickar; Fotoluminescenskartläggning; Skanningsmikroskop;

   Sammanfattning : Future commercial applications making use of non-classical light sources require bright quantum emitters. Such emitters can be achieved by embedding self-assembled, optically active semiconductor quantum dots (QDs) in centered photonic structures. LÄS MER

5. 4. Characterization of as prepared and exposed Perovskitesolar cells by microscopic and spectroscopic techniques

   Master-uppsats, Högskolan Dalarna/Institutionen för information och teknik

   Författare :Nagaraju Gorella; [2021]
   Nyckelord :Perovskites; Solar Cell; SEM; AFM; c-AFM; Photoluminescence; Electroluminescence; Solar simulator.;

   Sammanfattning : Studying the microstructural features, optical, and electrical properties of the thin-filmperovskite solar cells (PSC) is the main objective of this thesis work. All the PSCs used in thisthesis work were prepared by spin coating assisted with gas quenching process and the samplesreceived from Interuniversity Microelectronics Centre (IMEC), Belgium. LÄS MER

7. 5. Sn-Pb-mixtures for Perovskite Solar Cells

   Uppsats för yrkesexamina på avancerad nivå, Lunds universitet/Fasta tillståndets fysik; Lunds universitet/Fysiska institutionen

   Författare :Fanny Amanda Karolina Baumann; [2020]
   Nyckelord :Perovskite Solar Cells; PSC; Sn; Tin; Lead; Pb; FAPI; Renewable Energy; Compositional Engineering; Interfaces; Morphology; PL; Photoluminescence; Thin film stability; Technology and Engineering;

   Sammanfattning : Perovskite research has quickly gone from non-existent to one of the biggest reseach areas in Photo- voltaics. There are still many questions to be solved regarding the stability, environmental impact, reproducible large area devices, efficiency and module fabrication cost of Perovskite Solar Cells, PSCs, before commercial up-scaling. LÄS MER