Hui Tong;Yongqiang Dong;Yuning Hong;Matthias Haussier;Jacky W.Y. Lam;Herman H.Y. Sung;Xiaoming Yu;Jiaxin Sun;Ian D. Williams;Hoi Sing Kwok;本忠 唐
Hong Kong University of Science and Technology;Zhejiang University
发表时间:2007-2-8
期 刊:Journal of Physical Chemistry C
语 言:English
U R L: http://www.scopus.com/inward/record.url?scp=33847385810&partnerID=8YFLogxK
Propeller-shaped molecules diphenyldibenzofulvene (1) and (4-methoxyphenyl) phenyldibenzofulvene (2) were nonemissive when dissolved in good solvents but became luminescent when aggregated in poor solvents or in the solid state, showing a novel phenomenon of aggregation-induced emission (AIE). 8-Phenylbenzo[e]-acephenanthrylene (3), a ring-closed form of 1 with one of its phenyl blades locked, was emissive in the solutions, suggesting that the AIE effects of 1 and 2 are caused by the restrictions of intramolecular rotations of their aromatic blades in the aggregation state. The crystals of 1 and 2 emitted stronger, bluer lights than their amorphous powders, possibly due to the structural rigidification and conformational twisting of the dye molecules in the crystalline phase. The light-emitting diodes with a device configuration of ITO/NPB/dye/BCP/Alq3/LiF/Al were fabricated, which emitted bluish-green and yellow lights with maximum luminance and current efficiency up to 5000 Cd/m2 and 1.90 Cd/A, respectively.
化合物
工程与材料科学
物理与天文学
Scopus度量
年份 | CiteScore | SJR | SNIP |
---|---|---|---|
1996 | |||
1997 | |||
1998 | |||
1999 | |||
2000 | |||
2001 | |||
2002 | |||
2003 | |||
2004 | |||
2005 | |||
2006 | |||
2007 | |||
2008 | 1.883 | 1.033 | |
2009 | 2.158 | 1.42 | |
2010 | 2.462 | 1.365 | |
2011 | 7.6 | 2.339 | 1.473 |
2012 | 8 | 2.529 | 1.462 |
2013 | 8.3 | 2.143 | 1.434 |
2014 | 8.4 | 2.032 | 1.434 |
2015 | 7.9 | 1.886 | 1.246 |
2016 | 7.9 | 1.964 | 1.189 |
2017 | 7.9 | 2.135 | 1.133 |
2018 | 7.6 | 1.652 | 1.096 |
2019 | 7.3 | 1.477 | 1.063 |
2020 | 7.1 | ||
2021 |
相似文献推荐