Sökning: "Thin polymer film"

Visar resultat 11 - 15 av 25 uppsatser innehållade orden Thin polymer film.

1. 11. Surface energy modification of metal oxide to enhance electron injection in light-emitting devices : charge balance in hybrid OLEDs and OLETs

   Master-uppsats, Högskolan i Gävle/Avdelningen för elektronik, matematik och naturvetenskap

   Författare :Sergio Apicella Fernandez; [2017]
   Nyckelord :organic; inorganic; semiconductors; OLEDs; OLETs; TFT; stack; thin-film; deposition; spin-coating; thermal; evaporation; process; reactive; sputtering; luminescence; EQE; PEIE; metal-oxide; ZnO; ZnO:N; MoO3; F8BT; Alq3; NPB;

   Sammanfattning : Organic semiconductors (OSCs) present an electron mobility lower by several orders of magnitude than the hole mobility, giving rise to an electron-hole charge imbalance in organic devices such as organic light-emitting diodes (OLEDs) and organic light-emitting transistors (OLETs). In this thesis project, I tried to achieve an efficient electron transport and injection properties in opto-electronic devices, using inorganic n-type metal oxides (MOs) instead of organic n-type materials and a polyethyleneimine ethoxylated (PEIE) thin layer as electron transport (ETLs) and injection layers (EILs), respectively. LÄS MER

3. 12. The Influence of Carboxylic Acid in Packaging Materials

   Master-uppsats, Lunds universitet/Centrum för analys och syntes

   Författare :Jonas Mattisson; [2016]
   Nyckelord :food packing; Packaging Material; Carboxylic Acid; delamination; adhesion; polymer technology; polymerteknologi; Technology and Engineering;

   Sammanfattning : Tetra Pak delivers food packing services world-wide and uses multilayer packaging materials to protect the food product from being affected by the environment. Loss of adhesion between the polymer and the aluminium layer in Tetra Paks packaging materials has proven to be a serious problem casing the package to lose its integrity and the food product to spoil. LÄS MER

4. 13. An investigation on thin film adhesion measurement methods

   Master-uppsats, Lunds universitet/Centrum för analys och syntes

   Författare :Evelina Bergengren; Filip Sköld; [2016]
   Nyckelord :adhesion; peel test; polymerteknologi; polymer technology; Technology and Engineering;

   Sammanfattning : In this thesis methods for measuring and calculating the adhesion between the inside polymer layer and the aluminium layer of Tetra Pak’s packaging materials have been investigated. This was done both by exploring the possibilities of combining peel tests with the ICPeel method, and by developing ideas for new measuring methods. LÄS MER

5. 14. Preparation and Characterization of Antimicrobial Packaging Films from Cricket Chitosan Enriched with Schisandra Chinensis Extract

   Master-uppsats, Lunds universitet/Förpackningslogistik

   Författare :Vita Jarolimkova; [2015]
   Nyckelord :Agriculture and Food Sciences;

   Sammanfattning : Chitosan films for food packaging applications were prepared from shrimp and cricket chitosan, enriched with Schisandra chinensis extract. Physicochemical and antibacterial properties of the films were studied and compared with references studying similar chitosan films. LÄS MER

7. 15. An Investigation of Short Circuits in All-solution Processed and All-organic Solar Cells

   Master-uppsats, KTH/Skolan för kemivetenskap (CHE)

   Författare :Jim Johansson; [2015]
   Nyckelord :Organic solar cells; PEDOT:PSS; TQ1; short circuits; swelling; thin film interference;

   Sammanfattning : Organic solar cells have shown great promise of becoming a cheaper alternative to inorganic solar cells. Additionally, they can also be made semitransparent. LÄS MER