Journal of the Korean Crystal Growth and Crystal Technology (한국결정성장학회지)

The Korea Association of Crystal Growth (한국결정성장학회)
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Synthesis of all-inorganic halide perovskite nanocrystal and film fabrication for application in highly efficient optoelectronic device

고효율 광전자 소자 응용을 위한 전 무기 할라이드 페로브스카이트 나노결정 합 성 및 필름 제작

  • Choi, Seung Hee (School of Advanced Materials Science & Engineering, Sungkyunkwan University) ;
  • Kim, Hyun Bin (School of Advanced Materials Science & Engineering, Sungkyunkwan University) ;
  • Yoo, Jung Hyeon (School of Advanced Materials Science & Engineering, Sungkyunkwan University) ;
  • Kwon, Seok Bin (School of Advanced Materials Science & Engineering, Sungkyunkwan University) ;
  • Jeong, Seong Guk (School of Advanced Materials Science & Engineering, Sungkyunkwan University) ;
  • Song, Young Hyun (Lighting Design & Compnent Research Center, Korea Photonics Technology Institute (KOPTI)) ;
  • Yoon, Dae Ho (School of Advanced Materials Science & Engineering, Sungkyunkwan University)
  • 최승희 (성균관대학교 신소재공학과) ;
  • 김현빈 (성균관대학교 신소재공학과) ;
  • 유정현 (성균관대학교 신소재공학과) ;
  • 권석빈 (성균관대학교 신소재공학과) ;
  • 정성국 (성균관대학교 신소재공학과) ;
  • 송영현 (조명소재부품연구센터 한국광기술원) ;
  • 윤대호 (성균관대학교 신소재공학과)
  • Received : 2018.06.04
  • Accepted : 2018.06.11
  • Published : 2018.06.30
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Abstract

Halide perovskite nanocrystals have become attractive for LED applications due to their high color purity and excellent luminescent properties. $CsPbX_3$ (X = I, Br, and Cl) nanocrystals were synthesized by hot-injection method and the emission wavelength was controlled by changing the composition of halide ion. Green- and red-emitting films were fabricated using a polymer binder. The outstanding optical properties of the synthesized nanocrystals and fabricated films were confirmed. The wLED designed by green- and red-emitting perovskite nanocrystal films on blue InGaN LED was characterized.

할라이드 페로브스카이트 나노결정은 고색순도 및 우수한 발광특성을 바탕으로 LED 응용에 대한 연구가 활발히 진행되고 있다. 고온주입법을 통하여 $CsPbX_3$(X = I, Br, and Cl) 나노결정을 합성하였고 할로젠 이온의 조성 변화를 통하여 발광파장을 제어하였다. 고분자 바인더를 사용하여 녹색과 적색의 필름을 제작하였다. 합성된 나노결정 및 제작된 필름의 우수한 광특성을 확인하였고, 이를 InGaN 청색 LED칩에 적용하여 우수한 색영역의 wLED를 구현하였다.

Keywords

References

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