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1. Coordinatively induced length control and photoluminescence of W18O49 nanorods

Author

Kyoungja Woo, Jangwon Hong, Jae-Pyoung Ahn, Jong-Ku Park, and Kang-Jin Kim

Subjects
Photoluminescence -- Analysis, Tungsten compounds -- Optical properties, Tungsten compounds -- Structure, Oxides -- Structure, Oxides -- Optical properties, Chemistry
Abstract

Coordinatively induced length control of W18O49 nanorods are developed using thermal decomposition of W(CO)(sub 6) in octyl ether solutions of single or mixed capping agents, oleic acid (OA), oleic acid/hexadecylamine (HDA), and oleic acid/trioctylphosphine oxide (TOPO). The strong coordinating power and steric bulkiness of TOPO interrupts the growth of the nanorods, the rearrangement of the end face atoms, and the fusion of the lateral faces, which thereby increases the oxygen defects and the photoluminescence intensity.

Published
2005

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