Journal article Open Access

Charge injection and transport in single-layer organic light-emitting diodes

Crone, B. K.; Campbell, I. H.; Davids, P. S.; Smith, D. L.

We present experimental and device model results for the current–voltage characteristics of a series of organic diodes. We consider three general types of structures: electron only, hole only, and bipolar devices. Electron and hole mobility parameters are extracted from the corresponding single carrier structures and then used to describe the bipolar devices. The device model successfully describes the experimental results for: electron only devices as thickness is varied, hole only devices as the contact metals are varied, and bipolar devices are both the thickness and the contact metals are varied.

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