2003 (English)Licentiate thesis, comprehensive summary (Other scientific)
This thesis deals with synthesis and characterization of newoligothiophenes and derivatives thereof, for use as organicsemiconductors in optical and electronic applications, such asfield-effect transistors and light-emitting diodes. Much workis devoted to the development of new synthetic strategies forinteresting building blocks, to beused for synthesizing suchmaterials. One series of regio-defined oligothiophenes, up tothe octamer, has been prepared and evaluated. Photoluminescencequantum efficiencies of these were 22-31 % in solution, butdropped to 2-5 % in the solid state. Another project deals withthe development of oligothiophenes with in-chain chirality.These may find use in polarized lightemitting diodes. Finally,two oligothienyl-substituted porphyrins have been synthesizedand are currently evaluated for use in light-emitting diodesand possibly in solar cells.
Place, publisher, year, edition, pages
Stockholm: Kemi , 2003. , 32 p.
Trita-IOK, ISSN 1100-7974 ; 2003:78
oligothiophenes, synthesis, light-emitting diodes, field-effect transistors, photoluminescence, quantum efficiency
IdentifiersURN: urn:nbn:se:kth:diva-1591ISBN: 91-7283-497-8 (print)OAI: oai:DiVA.org:kth-1591DiVA: diva2:7517
NR 201408052003-08-252003-08-25Bibliographically approved