WANG Wei, LI Yi, NING Ping-fan etc. Perovskite Quantum Dot/Powder Phosphor Converted White Light LEDs with Wide Color Gamut[J]. Chinese Journal of Luminescence, 2018,39(5): 627-632
WANG Wei, LI Yi, NING Ping-fan etc. Perovskite Quantum Dot/Powder Phosphor Converted White Light LEDs with Wide Color Gamut[J]. Chinese Journal of Luminescence, 2018,39(5): 627-632 DOI: 10.3788/fgxb20183905.0627.
Perovskite Quantum Dot/Powder Phosphor Converted White Light LEDs with Wide Color Gamut
Perovskite quantum dots(PeQDs) are showing commercial promise for achieving wide color gamut in LCD displays for their tunable spectrum
high efficiency and much narrower FWHM emission spectrum than that of phosphors. We report a method to produce white light emitting LEDs (wLEDs) used for wide color gamut backlight using green light emitting CsPb(Br
0.75
I
0.25
)
3
(CPBI) inorganic PeQDs and red light emitting K
2
SiF
6
:Mn
4+
(KSF) phosphor powder as color conversion materials. CPBI PeQDs with emission peak wavelength of 526 nm and FWHM of 27 nm were successfully synthesized. The color points of the blue LED
the CsPb(Br
0.75
I
0.25
)
3
PeQDs and the KSF powder in the CIE 1931 color space yield a wide color gamut covering 107% of the NTSC standard. PeQDs
KSF and PeQDs-KSF conversion films were fabricated by screen printing and UV curing processes. Three kinds of wLEDs with different package structure were produced using blue LED chip and conversion films. Lighting properties of these devices were discussed and the sample with KSF film on the surface showed the optimum lumen efficiency of 102 lm/W and color temperature of 7 100 K.
关键词
Keywords
references
马红星, 陆小松. 满足夜视兼容显示应用的三基色LED背光配色方法[J]. 液晶与显示, 2015, 30(2):365-368. MA H X, LU X S. Color matching of LED backlight based on three primary colors for NVIS compatible display[J]. Chin. J. Liq. Cryst. Disp., 2015, 30(2):365-368. (in Chinese)
SMET P F, PARMENTIER A B, POELMAN D. Selecting conversion phosphors for white light-emitting diodes[J]. J. Electrochem. Soc., 2011, 158(6):R37-R54.
SIJBOM H F, VERSTRAETE R, JOOS J J, et al.. K2SiF6:Mn4+ as a red phosphor for displays and warm-white LEDs:a review of properties and perspectives[J]. Opt. Mater. Express, 2017, 7(9):3332-3365.
CHUNG J H, RYU J H. Photoluminescence and LED application of -SiAlON:Eu2+ green phosphor[J]. Ceram. Int., 2012, 38(6):4601-4606.
SHIRASAKI Y, SUPRAN G J, BAWENDI M G, et al.. Emergence of colloidal quantum-dot light-emitting technologies[J]. Nat. Photon., 2013, 7(1):13-23.
NING P F, ZHANG C Y, LIU J G, et al.. Photoluminescence and thermal stability of Mn2+-doped CdSe/CdS/ZnS quantum dots[C]. Proceedings of The 13th China International Forum on Solid State Lighting, Beijing, China, 2016:63-65.
季洪雷, 周青超, 潘俊, 等. 量子点液晶显示背光技术[J]. 中国光学, 2017, 10(5):666-680. JI H L, ZHOU Q C, PAN J, et al.. Advances and prospects in quantum dots based backlights[J]. Chin. Opt., 2017, 10(5):666-680. (in Chinese)
LUO Z Y, XU D M, WU S T. Emerging quantum-dots-enhanced LCDs[J]. J. Disp. Technol., 2014, 10(7):526-539.
SUPRAN G J, SHIRASAKI Y, SONG K W, et al.. QLEDs for displays and solid-state lighting[J]. MRS Bull., 2013, 38(9):703-711.
CHEN W, CAO W Q, HAO J J, et al.. Synthesis of high-quality and efficient quantum dots with inorganic surface passivation in a modified phosphine-free method[J]. Mater. Lett., 2015, 139:98-100.
HAO J J, ZHOU J, ZHANG C Y. A tri-n-octylphosphine-assisted successive ionic layer adsorption and reaction method to synthesize multilayered core-shell CdSe-ZnS quantum dots with extremely high quantum yield[J]. Chem. Commun., 2013, 49(56):6346-6348.
PROTESESCU L, YAKUNIN S, BODNARCHUK M I, et al.. Nanocrystals of cesium lead halide perovskites (CsPbX3, X=Cl, Br, and I):novel optoelectronic materials showing bright emission with wide color gamut[J]. Nano Lett., 2015, 15(6):3692-3696.
KIM Y, YASSITEPE E, VOZNYY O, et al.. Efficient luminescence from perovskite quantum dot solids[J]. ACS Appl. Mater. Interf., 2015, 7(45):25007-25013.
YAKUNIN S, PROTESESCU L, KRIEG F, et al.. Low-threshold amplified spontaneous emission and lasing from colloidal nanocrystals of caesium lead halide perovskites[J]. Nat. Commun., 2015, 6:8056-1-8.
余彬海, 颜才满, 饶龙石, 等. 高质量钙钛矿量子点薄膜制备及性能研究[J]. 光子学报, 2018, 47(2):0231001. YU B H, YAN C M, RAO L S, et al.. Study on fabrication technology and properties of high quality perovskite quantum dots film[J]. Acta Photon. Sinica, 2018, 47(2):0231001. (in Chinese)
PARK Y S, GUO S J, MAKAROV N S, et al.. Room temperature single-photon emission from individual perovskite quantum dots[J]. ACS Nano, 2015, 9(10):10386-10393.
WANG Y, LI X M, SONG J Z, et al.. All-inorganic colloidal perovskite quantum dots:a new class of lasing materials with favorable characteristics[J]. Adv. Mater., 2015, 27(44):7101-7108.
SONG J Z, LI J H, LI X M, et al.. Quantum dot light-emitting diodes based on inorganic perovskite cesium lead halides (CsPbX3)[J]. Adv. Mater., 2015, 27(44):7162-7167.
LI X M, WU Y, ZHANG S L, et al.. CsPbX3 quantum dots for lighting and displays:room-temperature synthesis, photoluminescence superiorities, underlying origins and white light-emitting diodes[J]. Adv. Funct. Mater., 2016, 26(15):2435-2445.
YOON H C, KANG H, LEE S, et al.. Study of perovskite QD down-converted LEDs and six-color white LEDs for future displays with excellent color performance[J]. ACS Appl. Mater. Interf., 2016, 8(28):18189-18200.
ABE S, JOOS J J, MARTIN L I D J, et al.. Hybrid remote quantum dot/powder phosphor designs for display backlights[J]. Light:Sci. Appl., 2017, 6:e16271.
XIE B, CHEN W, HAO J J, et al.. Structural optimization for remote white light-emitting diodes with quantum dots and phosphor:packaging sequence matters[J]. Opt. Express, 2016, 24(26):A1560-A1570.
Performance Enhancement of MAPbBr3 Perovskite Quantum Dot for Wide Color Gamut LED via Double Short-chain Ligand Modification
Terpinene-induced Slow Growth of Deep Blue CsPbBr3 Quantum Dots at Room Temperature
Inkjet Printed Perovskite Quantum Dot Light-emitting Diodes Based on Multifunctional Phenethylammonium Bromide Modification Layer
Research Progress of Ion-doped Perovskite Quantum Dot-embedded Glass
Perovskite Light Emitting Diodes Using Covalent Organic Polymers as Hole Injection Layers
Related Author
LI Gongming
CAI Junhu
LAI Wenzong
CHEN Xiaogang
ZHA Nan
YE Yun
XU Sheng
GUO Tailiang
Related Institution
Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China (Mindu Innovation Laboratory)
National and Local United Engineering Laboratory of Flat Panel Display Technology, College of Physics and Information Engineering, Fuzhou University
Tianjin Key Laboratory of Thin Film Electronics and Communication Devices, School of Integrated Circuit Science and Engineering, Tianjin University of Technology
College of Physics and Information Engineering, Fuzhou University
School of Physics and Optoelectronics, South China University of Technology