Fabrication of and Ultraviolet Lasing in TPE/PMMA Polymer Nanowires

被引：36

作者：

Cheng, Kin Hei ^{[2
]}

Zhong, Yongchun ^{[2
]}

Xie, Bo Yu ^{[1
]}

Dong, Yong Qiang ^{[1
,3
]}

Hong, Yuning ^{[3
]}

Sun, Jing Zhi ^{[1
]}

Tang, Ben Zhong ^{[3
]}

Wong, Kam Sing ^{[2
]}

机构：

[1] Zhejiang Univ, Inst Biol & Med Macromol, Dept Polymer Sci & Engn, Hangzhou 310027, Zhejiang, Peoples R China

[2] Hong Kong Univ Sci & Technol, Dept Phys, Kowloon, Hong Kong, Peoples R China

[3] Hong Kong Univ Sci & Technol, Dept Chem, Kowloon, Hong Kong, Peoples R China

来源：

JOURNAL OF PHYSICAL CHEMISTRY C | 2008年 / 112卷 / 45期

基金：

中国国家自然科学基金;

关键词：

D O I：

10.1021/jp805158b

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：

We fabricated tetraphenylethylene (TPE)-doped poly(methyl methacrylate) (PMMA) nanowires in the channels of anodic aluminum oxide template. Strong blue photoluminescence from the TPE aggregates in the polymer nanowires was observed. Room temperature ultraviolet lasing can be achieved in as-prepared TPE/PMMA nanowires. Lasing from isolated individual nanowires at 372 nm with emission width of 0.3 urn was also observed at low temperature. Ultrafast emission decay of similar to 34 ps from the 372 nm peak pumped above threshold verified the stimulated emission nature of the lasing process. Our result shows that combining small molecules with highly processable PMMA can result in high-quality polymer nanowires and meanwhile maintain or even enhance the original functionality of the small molecules.

引用

页码：17507 / 17511

页数：5

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