Platinum(II) cyclometallates featuring broad emission bands and their applications in color-tunable OLEDs and high color-rendering WOLEDs

Tan, Guiping1,2,3; Chen, Shuming4; Siu, Chi-Ho2,3,5; Langlois, Adam6; Qiu, Yongfu1; Fan, Hongbo1; Ho, Cheuk-Lam2,3,5; Harvey, Pierre D.6; Lo, Yih Hsing7; Liu, Li8; Wong, Wai-Yeung2,3,5

2016

10.1039/c6tc01594h

Journal of Materials Chemistry C   影响因子和分区

2050-7526

2050-7534

Two phosphorescent platinum(II) cyclometallated complexes with phenoxy groups (1 and 2) have been developed. The modified organic ligands derived by combining the phenoxy moiety and 2-phenylpyridine conferred them with a more flexible structure, leading to superior intermolecular interaction properties of the resulting Pt(II) metallophosphors. Because of the excimer formation induced by Pt(II) complexes 1 and 2, the emission color can be tuned over a wide range from cyan to orange by simply increasing the concentration of the Pt(II) metallophosphors. Inspired by their broad emission band, color tunability and outstanding electroluminescence (EL) performance, these two Pt(II) phosphors complemented with blue fluorescent emitter 4,40-bis(9-ethyl-3-carbazovinylene)-1,10-biphenyl (BCzVBi) were employed in manufacturing high color-rendering white organic light-emitting devices (WOLEDs). In such simple twoemitter systems, 1-based WOLEDs exhibited reasonable EL performance with an external quantum efficiency (Zext) of 11.7%, luminance efficiency (ZL) of 29.1 cd A(-1), power efficiency (eta(p)) of 16.9 mu m W-1 and color rendering index (CRI) of 77, whereas 2-based WOLEDs demonstrated an Zext of 10%, ZL of 21.7 cd A(-1), Zp of 10.7 mu m W-1 and CRI of 88.

SCI ; EI

英语

其他

National Natural Science Foundation of China[51206029]

Materials Science ; Physics

Materials Science, Multidisciplinary ; Physics, Applied

WOS:000378719600016

ROYAL SOC CHEMISTRY

20162702556110

Color ; Efficiency ; Electroluminescence ; Flexible structures ; Optoelectronic devices ; Organic light emitting diodes (OLED) ; Phosphorescence

Structural Members and Shapes:408.2 ; Semiconductor Devices and Integrated Circuits:714.2 ; Light, Optics and Optical Devices:741 ; Production Engineering:913.1

Web of Science

1.Dongguan Univ Technol, Coll Chem & Environm Engn, Guangdong Engn & Technol Res Ctr Adv Nanomat, Dongguan 523808, Peoples R China
2.Hong Kong Baptist Univ, Inst Mol Funct Mat, Dept Chem, Waterloo Rd, Kowloon Tong, Hong Kong, Peoples R China
3.Hong Kong Baptist Univ, Inst Mol Funct Mat, Inst Adv Mat, Waterloo Rd, Kowloon Tong, Hong Kong, Peoples R China
4.South Univ Sci & Technol China, Dept Elect & Elect Engn, 1088 Xueyuan Rd, Shenzhen 518055, Peoples R China
5.S China Univ Technol, Inst Polymer Optoelect Mat & Devices, State Key Lab Luminescent Mat & Devices, Guangzhou 510640, Guangdong, Peoples R China
6.Univ Sherbrooke, Dept Chim, 2550 Boul Univ, Sherbrooke, PQ J1K 2R1, Canada
7.Univ Taipei, Dept Appl Phys & Chem, Taipei 100, Taiwan
8.Hubei Univ, Hubei Collaborat Innovat Ctr Adv Organ Chem Mat, Sch Chem & Chem Engn, Key Lab Synth & Applicat Organ Funct Mol,Minist E, Wuhan 430062, Peoples R China

Tan, Guiping,Chen, Shuming,Siu, Chi-Ho,et al. Platinum(II) cyclometallates featuring broad emission bands and their applications in color-tunable OLEDs and high color-rendering WOLEDs[J]. Journal of Materials Chemistry C,2016,4(25):6016-6026.

Tan, Guiping.,Chen, Shuming.,Siu, Chi-Ho.,Langlois, Adam.,Qiu, Yongfu.,...&Wong, Wai-Yeung.(2016).Platinum(II) cyclometallates featuring broad emission bands and their applications in color-tunable OLEDs and high color-rendering WOLEDs.Journal of Materials Chemistry C,4(25),6016-6026.

Tan, Guiping,et al."Platinum(II) cyclometallates featuring broad emission bands and their applications in color-tunable OLEDs and high color-rendering WOLEDs".Journal of Materials Chemistry C 4.25(2016):6016-6026.