| 학회 | 한국재료학회 |
| 학술대회 | 2016년 가을 (11/16 ~ 11/18, 경주 현대호텔) |
| 권호 | 22권 2호 |
| 발표분야 | F. 광기능/디스플레이 재료 분과 |
| 제목 | All-inorganic halide perovskite nanocrystals for efficient light-emitting diodes |
| 초록 | All-inorganic cesium lead halide perovskite CsPbX3 (X = Cl, Br, I) have attained great attention as promising light-emitting materials due to the high stability, composition dependent wide color tunability (400-800 nm), narrow full width at half maximum (FWHM) of emission band (~ 20 nm) and high photoluminescence quantum yields (PLQYs). Furthermore, economic and low energetic fabrication process also make perovskite nanocrystals (NCs) suitable for next generation lightning materials. In this study, CsPbX3 (X = Cl, Br, I) was synthesized by simple hot-injection method. Wavelength tuning carried out through easy anion-exchange reaction during the synthesis process by controlling halide ratio from blue CsPb(Cl/Br)3 to red CsPb(Br/I)3. Synthesized perovskite NCs are characterized to define crystal structures, luminescence properties and morphologies. We optimized luminescence properties of CsPbX3 NCs for white generation in application of LEDs. |
| 저자 | Seung Hee Choi1, Eun Kyung Ji2, Young Hyun Song3, Dae Ho Yoon2 |
| 소속 | 1School of Advanced Materials Science and Engineering, 2Sungkyunkwan Univ. (SKKU), 3SKKU Advanced Institute of nanotechnology (SAINT) |
| 키워드 | <P>perovskite; light-emitting diodes (LEDs); CsPbX<SUB>3</SUB></P> |
