Ultra narrow PbS nanorods with lntense fluorescence

被引：87

作者：

Acharya, Somobrata ^{[1
]}

Gautam, Ujjal K. ^{[2
]}

Sasaki, Toshio ^{[1
]}

Bando, Yoshio ^{[1
,2
]}

Golan, Yuval ^{[4
,5
]}

Ariga, Katsuhiko ^{[3
]}

机构：

[1] Natl Inst Mat Sci, Int Ctr Young Sci, Tsukuba, Ibaraki 3050044, Japan

[2] Natl Inst Mat Sci, Nanoscale Mat Ctr, Tsukuba, Ibaraki 3050044, Japan

[3] Natl Inst Mat Sci, Supermol Grp, Tsukuba, Ibaraki 3050044, Japan

[4] Ben Gurion Univ Negev, Dept Mat Engn, IL-84105 Beer Sheva, Israel

[5] Ben Gurion Univ Negev, Ilse Katz Inst Meso & Nanoscale Sci & Technol, IL-84105 Beer Sheva, Israel

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2008年 / 130卷 / 14期

关键词：

D O I：

10.1021/ja711064b

中图分类号：

O6 [化学];

学科分类号：

0703 [化学];

摘要：

We report on the narrowest "free" quantum rods of PbS with 1.7 nm diameter produced in a single step under bench-top reaction conditions. The nanorods exhibit molecule-like discrete narrow optical behavior with high fluorescence quantum yield. We propose a new macroscopic vortex assembly formation by simple spin casting route. Interestingly, the pattern generates fluorescence along its line from the nanorod domains. The ultra narrow nanorods with strong discrete fluorescence and robust stability could be useful in biological labeling, fluorescence resonance energy transfer, and optoelectronics; applications, as well as to verify the theories in the very strong confinement regime.

引用

页码：4594 / +

页数：3

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