Figure 2 | Light: Science & Applications

Figure 2

From: An electrophosphorescent organic light emitting concentrator

Figure 2

(a) Effective luminance vs. current density (Leff–J) characteristics of the reference device (squares), a single panel device (circles), and the four-sided device forming the concentrator (triangles). Inset: current density vs. voltage (J–V) characteristics of the reference device and a single-panel PHOLED. (b) CF vs. J of the concentrator. CF, concentration factor; PHOLED, phosphorescent organic light emitting device.

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