17 May '13, 1pm

Graphene foam as transparent conductive electrode for blue LEDs #GaN #blueLEDs

Graphene foam as transparent conductive electrode for blue LEDs #GaN #blueLEDs

Figure 2: (a) Optical microscope image of blue LED devices with graphene foam transparent conductive electrode. (b) Light output and current versus voltage (L-I-V) characteristics of blue LEDs with/without graphene foam. (c) Electroluminescence (EL) image of blue LED device without graphene foam at 20mA. (d) EL spectra of blue LED without graphene foam in 20-100mA range. (e) EL image of blue LED with graphene foam at 20mA. (f) EL spectra of blue LED with graphene foam in 20-100mA range. Insets of (d) and (f) are optical light emission images from beam profiler without/with graphene foam.

Full article: http://www.semiconductor-today.com/news_items/2013/MAY/SN...

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