However, a decreasing trend in the light extraction is observed beyond the R/a = 0.43 value, as shown in Fig. 14 b.
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Simultaneous influence of nanoPSS and photonic crystal on light extraction in AlGaN 304nm UVB LEDs.
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However, a decreasing trend in the light extraction is observed beyond the R/a = 0.43 value, as shown in Fig. 14 b.