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The effect of thickness on luminous properties of ceramic phosphor plate for high-power LD

고출력 LD 용 형광체 세라믹 플레이트의 두께에 따른 광학 특성

  • Received : 2016.04.08
  • Accepted : 2016.04.20
  • Published : 2016.04.30

Abstract

In the present paper, garnet structured $Y_3Al_5O_{12}:Ce^{3+}$ (YAG : Ce) ceramic phosphor plate (CPP) for high power laser diode (LD) was prepared and optical properties were analyzed. We synthesized monodispersed spherical nano-sized YAG : Ce particles by liquid phase method, fabricated phosphor ceramic plate with the addition of $Al_2O_3$. $75{\mu}m$ and $100{\mu}m$ thick YAG : Ce CPPs were compared in terms of the factors of conversion efficacy, thermal quenching, luminance and correlated color temperature (CCT). In conclusion, conversion efficacy decreased by 25 % in both samples and $100{\mu}m$ thick sample provides better optical properties of thermal quenching, maximum light conversion efficacy and maximum luminance value.

Keywords

Laser diode;Ceramic phosphor plate;$Y_3Al_5O_{12}:Ce^{3+}$;Luminous properties;Correlated color temperature

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Acknowledgement

Supported by : 한국에너지기술평가원(KETEP)