Essays about: "polymer solar cells"

Showing result 6 - 10 of 28 essays containing the words polymer solar cells.

1. 6. A photodegradation study of conjugated polymers for organic solar cells by absorption spectroscopy and atomic force microscopy

   University essay from Karlstads universitet/Institutionen för ingenjörsvetenskap och fysik (from 2013)

   Author : Johansson André; [2021]
   Keywords : OSC; solar cells; active layer; polymer; degradation;

   Abstract : The effect of light exposure in ambient air on thin films made from an electron acceptor polymer poly{[N,N'-bis(2-octyldodecyl)naphthalene-1,4,5,8-bis(dicarboximide)-2,6-diyl]-alt-5,5'-(2,2'-bithiophene)} (N2200), an electron donor polymer Poly[[2,3-bis(3-octyloxyphenyl)-5,8-quinoxalinediyl]-2,5-thiophenediyl] (TQ1) and their blends, has been studied using UV-vis spectroscopy and Atomic Force Microscopy (AFM). For solutions of TQ1, N2200 and blends, the linearity of the Beer-Lambert law for absorption spectroscopy has been verified. READ MORE

3. 7. Photochemistry of Copper Coordination Complexes

   University essay from KTH/Kemiteknik

   Author : Amanda Blad; Helena Glisén; Filippa Ludvig; [2021]
   Keywords : Copper Halide Organic Complex; Time-Resolved Photoluminescence; Metal-organic Framework; Coordination Polymer; Thin Film Solar Cell; Koppar halid organiska komplex; tidsberoende fotoluminesens; metallorganiska ramverk; koordinationspolymer; tunnfilmssolcell.;

   Abstract : The United Nations have set a number of sustainability goals, Agenda 2030, in order to combat the worlds largest challenges and injustices. The energy market is one of these urgent issues which must be solved. Solar energy is expected to be the fastest growing energy source in the future energy mix. READ MORE

4. 8. Passivation of Gallium Arsenide Nanowires for Solar Cells

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

   Author : Austin Irish; [2019]
   Keywords : nanowires; semiconductors; solar cells; photovoltaics; passivation; electronics; chemistry; polymers; hydrazine; plasma; gallium; arsenic; iii-v; epitaxy; photoluminescence; time-resolved; spectroscopy; Physics and Astronomy;

   Abstract : A strategic and diverse set of passivation methods for gallium arsenide nanowires wasstudied. Using a time-resolved photoluminescence setup at100 Kand300 K, the radiativerecombination of charge carriers was resolved on a picosecond time scale. READ MORE

5. 9. Microscopy techniques for studying polymer-polymer blends

   University essay from Umeå universitet/Institutionen för fysik

   Author : Sandra Mattsson; [2019]
   Keywords : CLEM; correlative light and electron microscopy; correlative microscopy; fluorescence microscopy; scanning electron microscopy; phase contrast microscopy; polymer blend; morphology; super yellow; PEO; poly ethylene oxide ; CLEM; korrelativ ljus- och elektronmikroskopi; korrelativ mikroskopi; fluorescensmikroskopi; svepelektronmikroskopi; faskontrastsmikroskopi; polymerblandning; morfologi; super yellow; PEO; poly etylenoxid ;

   Abstract : Semiconductors are used in many electronic applications, for example diodes, solar cells and transistors. Typically, semiconductors are inorganic materials, such as silicon and gallium arsenide, but lately more research and development has been devoted to organic semiconductors, for example semiconducting polymers. READ MORE

6. 10. Solvents and solvent blends for the polymers TQ1 and N2200.

   University essay from Karlstads universitet/Institutionen för ingenjörs- och kemivetenskaper (from 2013)

   Author : Lisa Lundin; [2019]
   Keywords : ;

   Abstract : Abstract The solubility of polymers depends on how well the parameters of the polymers and solvents used resemble each other. The more similar the parameters are, the more likely the polymers are to be dissolved. READ MORE