Linearly polarized emission of an organic semiconductor nanobelt

被引:83
作者
Datar, Aniket
Balakrishnan, Kaushik
Yang, Xiaomei
Zuo, Xiaobing
Huang, Jialing
Oitker, Randy
Yen, Max
Zhao, Jincai
Tiede, David M.
Zang, Ling
机构
[1] Argonne Natl Lab, Div Chem, Argonne, IL 60439 USA
[2] So Illinois Univ, Dept Chem & Biochem, Carbondale, IL 62901 USA
[3] So Illinois Univ, Mat Technol Ctr, Carbondale, IL 62901 USA
[4] Chinese Acad Sci, Inst Chem, Key Lab Photochem, Beijing 100080, Peoples R China
关键词
DISCOTIC LIQUID-CRYSTALS; CHARGE-TRANSFER EXCITONS; PI-CONJUGATED SYSTEMS; SINGLE-MOLECULE; PERYLENE-3,4-9,10-BIS(DICARBOXIMIDE) PIGMENTS; ELECTRON-TRANSFER; BUILDING-BLOCKS; FILMS; CRYSTALLOCHROMY; FRENKEL;
D O I
10.1021/jp061739j
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
Linearly polarized emission has been observed for the nanobelts fabricated from a perylene diimide molecule through both solution-based and surface-supported self-assembling. The measurement of polarized emission was performed over single nanobelts with use of a near-field scanning optical microscope (NSOM) adapted with emission polarization (by putting a planar polarizer before the detector). Rotating the emission polarizer (from 0 to 180) changed the emission intensity in a way depending on the relative angle between the long axis of the belt and the polarizer with a minimum of intensity detected at ca. 78 degrees, which is indicative of the tilted stacking of molecules along the belt direction.
引用
收藏
页码:12327 / 12332
页数:6
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