Cyclometalated Iridium(III) Carbene Phosphors for Highly Efficient Blue Organic Light-Emitting Diodes

Chen, Zhao1,2,3; Wang, Liqi1,2,3; Su, Sikai4; Zheng, Xingyu4; Zhu, Nianyong1,2,3; Ho, Cheuk-Lam1,2,3,5; Chen, Shuming4; Wong, Wai-Yeung1,2,3,5

2017-11-22

10.1021/acsami.7b09172

ACS Applied Materials & Interfaces   影响因子和分区

1944-8244

Five deep blue carbene-based iridium(III) phosphors were synthesized and characterized. Interestingly, one of them can be fabricated into deep blue, sky blue and white organic light-emitting diodes (OLEDs) through changing the host materials and exciton blocking layers. These deep and sky blue devices exhibit Commission Internationale de 1'Eclairage (CIE) coordinates of (0.145, 0.186) and (0.152, 0.277) with external quantum efficiency (EQE) of 15.2% and 9.6%, respectively. The EQE of the deep blue device can be further improved up to 19.0% by choosing a host with suitable energy level of its lowest unoccupied molecular orbital (LUMO).

blue phosphor carbene iridium organic light-emitting diode single-doped OLED

SCI ; EI

英语

通讯

Science, Technology and Innovation Committee of Shenzhen Municipality[JCYJ20160531193836532]

Science & Technology - Other Topics ; Materials Science

Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary

WOS:000416614600070

AMER CHEMICAL SOC

20174804465526

Iridium ; Iridium compounds ; Light emission ; Molecular orbitals ; Organic compounds ; Phosphors ; Supercomputers

Precious Metals:547.1 ; Semiconductor Devices and Integrated Circuits:714.2 ; Digital Computers and Systems:722.4 ; Light/Optics:741.1 ; Physical Chemistry:801.4 ; Organic Compounds:804.1

Web of Science

1.Hong Kong Baptist Univ, Inst Mol Funct Mat, Waterloo Rd, Kowloon, Hong Kong, Peoples R China
2.Hong Kong Baptist Univ, Dept Chem, Waterloo Rd, Kowloon, Hong Kong, Peoples R China
3.HKBU Inst Res & Continuing Educ, Shenzhen Virtual Univ Pk, Shenzhen 518057, Peoples R China
4.Southern Univ Sci & Technol, Dept Elect & Elect Engn, Shenzhen 518055, Peoples R China
5.Hong Kong Polytech Univ, Dept Appl Biol & Chem Technol, Hong Hom, Hong Kong, Peoples R China

Chen, Zhao,Wang, Liqi,Su, Sikai,et al. Cyclometalated Iridium(III) Carbene Phosphors for Highly Efficient Blue Organic Light-Emitting Diodes[J]. ACS Applied Materials & Interfaces,2017,9(46):40497-40502.

Chen, Zhao.,Wang, Liqi.,Su, Sikai.,Zheng, Xingyu.,Zhu, Nianyong.,...&Wong, Wai-Yeung.(2017).Cyclometalated Iridium(III) Carbene Phosphors for Highly Efficient Blue Organic Light-Emitting Diodes.ACS Applied Materials & Interfaces,9(46),40497-40502.

Chen, Zhao,et al."Cyclometalated Iridium(III) Carbene Phosphors for Highly Efficient Blue Organic Light-Emitting Diodes".ACS Applied Materials & Interfaces 9.46(2017):40497-40502.