Abstract
We report on measurements of electroluminescence (EL) in poly(3-hexylthienylene), and compare its EL properties with those of poly(3-dodecylthienylene) using calcium and aluminium as electron-injecting contacts. We find efficiencies significantly higher than those reported elsewhere, and achieve values of 0.2 % photons per electron in poly(3-dodecylthienylene). We present detailed EL spectra showing well-resolved phonon structure and highlight the role of defects in the performance of the devices. © 1993.
Original language | English (US) |
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Journal | Synthetic Metals |
Volume | 57 |
Issue number | 1 |
DOIs | |
State | Published - Apr 12 1993 |
Externally published | Yes |