Transcript 下載/瀏覽

Simulation
Fig.7 Light intensity distributions calculated at
the top surfaces of LEDs for different electrode
patterns. (a) Bar-shaped pattern. (b) U-shaped Fig.8 Measured light intensity distributions on
pattern.
the top surfaces of LEDs for different
electrode patterns by optical microscopes. (c)
and (d) show the signal processed data of (a)
and (b), respectively, to see the light intensity
distribution more clearly.
3.14V
3.27V
Fig.9Measured I–V curves for the two different
electrode patterns shown in Fig. 8(a) and (b).
Fig.10 Measured light output L–I curves for
the two different electrode patterns shown in
Fig. 8(a) and (b).
Fig.11 Measured I–V curves for the two
different electrode patterns before and after
the current injection of 400 mA for 5 min.
Fig.12 Degradation of output powers before
and after the current injection of 400 mA for
5 min.