Dumbbell-Shaped Spirocyclic Aromatic Hydrocarbon to Control Intermolecular π-π Stacking Interaction for High-Performance Nondoped Deep-Blue Organic Light-Emitting Devices

被引：76

作者：

Gu, Ju-Fen ^{[1
,2
]}

Xie, Guo-Hua ^{[3
]}

Zhang, Long ^{[1
,2
]}

Chen, Shu-Fen ^{[1
,2
]}

Lin, Zong-Qiong ^{[1
,2
]}

Zhang, Zhen-Song ^{[3
]}

Zhao, Jian-Feng ^{[1
,2
]}

Xie, Ling-Hai ^{[1
,2
]}

Tang, Chao ^{[1
,2
]}

Zhao, Yi ^{[3
]}

Liu, Shi-Yong ^{[3
]}

Huang, Wei ^{[1
,2
]}

机构：

[1] Nanjing Univ Posts & Telecommun, KLOEID, Nanjing 210046, Peoples R China

[2] Nanjing Univ Posts & Telecommun, IAM, Nanjing 210046, Peoples R China

[3] Jilin Univ, State Key Lab Integrated Optoelect, Coll Elect Sci & Engn, Changchun 130012, Peoples R China

来源：

JOURNAL OF PHYSICAL CHEMISTRY LETTERS | 2010年 / 1卷 / 19期

关键词：

ELECTROLUMINESCENT DEVICES; FLUORENE DERIVATIVES; THERMAL-STABILITY; TRIPLET EXCITONS; EFFICIENT; DIODES; EMITTERS; ENERGY; OLEDS; ELECTROPHOSPHORESCENCE;

D O I：

10.1021/jz101039d

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Dumbbell-shaped spirocyclic aromatic hydrocarbons on the basis of molecular modeling exhibit no pi-pi stacking interaction among chromophores in the molecular packing diagrams. A model compound of 1,6-di(spiro[fluorene-9,9'-xanthene]2-yl) pyrene (DSFXPy) with the pyrene-pyrene distance of up to 10.4 angstrom has been systhesized for high-performance nondoped deep-blue organic light-emitting devices. The proof-of-concept nondoped OLEDs have been fabricated with the configuration of ITO/MoOx(2 nm)/NPB(30 nm)/DSFXPy(30 nm)/TPBi(40 nm)/LiF(1 nm)/Al. DSFXPy-based nondoped OLED exhibits a maximum current efficiency of 7.4 cd/A (4.6 % at 260 cd m(-2) ) and excellent CIE coordinates (0.16, 0.15) (at 6500 cd m(-2)), surpassing most reported nondoped deep-blue OLEDs Dumbbell-shaped spirocyclic arenes will be promising candidates for OLEDs.

引用

页码：2849 / 2853

页数：5

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