Effect of doping of cesium carbonate on electron transport in Tris(8-hydroxyquinolinato) aluminum
| Autor: | Modeeparampil N. Kamalasanan, Arunandan Kumar, Suneet Tuli, Ritu Srivastava, Priyanka Tyagi |
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| Rok vydání: | 2013 |
| Předmět: |
Electron mobility
Materials science Doping Inorganic chemistry Analytical chemistry chemistry.chemical_element General Chemistry Electron Conductivity Condensed Matter Physics Electron transport chain Electronic Optical and Magnetic Materials Biomaterials chemistry Caesium Electrode Materials Chemistry Electrical and Electronic Engineering Ohmic contact |
| Zdroj: | Organic Electronics. 14:1391-1395 |
| ISSN: | 1566-1199 |
| DOI: | 10.1016/j.orgel.2013.02.034 |
| Popis: | Electron transport studies in Tris(8-hydroxyquinolinato) aluminum (Alq 3 ) is hindered due to lack of efficient electron injecting electrode. We demonstrate that an electron injection layer of Cs 2 CO 3 forms ohmic contact with Alq 3 , which enables the observation of SCLC. This allows us to directly determine the electron mobility in Alq 3 , which was found to be 1 × 10 −9 m 2 /V s at room temperature. Doping of Cs 2 CO 3 leads to increase in conductivity as well as mobility. Mobility has increased to 1 × 10 −7 m 2 /V s for 33% doping of Cs 2 CO 3 . |
| Databáze: | OpenAIRE |
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