Density-controlled, solution-based growth of ZnO nanorod arrays via layer-by-layer polymer thin films for enhanced field emission

Benjamin Weintraub; Sehoon Chang; Srikanth Singamaneni; Won Hee Han; Young Jin Choi; Joonho Bae; Melanie Kirkham; Vladimir V. Tsukruk; Yulin Deng

doi:10.1088/0957-4484/19/43/435302

Density-controlled, solution-based growth of ZnO nanorod arrays via layer-by-layer polymer thin films for enhanced field emission

Benjamin Weintraub, Sehoon Chang, Srikanth Singamaneni, Won Hee Han, Young Jin Choi, Joonho Bae, Melanie Kirkham, Vladimir V. Tsukruk, Yulin Deng

Research output: Contribution to journal › Article › peer-review

40 Scopus citations

Abstract

A simple, scalable, and cost-effective technique for controlling the growth density of ZnO nanorod arrays based on a layer-by-layer polyelectrolyte polymer film is demonstrated. The ZnO nanorods were synthesized using a low temperature (T = 90°C), solution-based method. The density-control technique utilizes a polymer thin film pre-coated on the substrate to control the mass transport of the reactant to the substrate. The density-controlled arrays were investigated as potential field emission candidates. The field emission results revealed that an emitter density of 7 nanorods μm^-2 and a tapered nanorod morphology generated a high field enhancement factor of 5884. This novel technique shows promise for applications in flat panel display technology.

Original language	English
Article number	435302
Journal	Nanotechnology
Volume	19
Issue number	43
DOIs	https://doi.org/10.1088/0957-4484/19/43/435302
State	Published - Oct 22 2008
Externally published	Yes

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title = "Density-controlled, solution-based growth of ZnO nanorod arrays via layer-by-layer polymer thin films for enhanced field emission",

abstract = "A simple, scalable, and cost-effective technique for controlling the growth density of ZnO nanorod arrays based on a layer-by-layer polyelectrolyte polymer film is demonstrated. The ZnO nanorods were synthesized using a low temperature (T = 90°C), solution-based method. The density-control technique utilizes a polymer thin film pre-coated on the substrate to control the mass transport of the reactant to the substrate. The density-controlled arrays were investigated as potential field emission candidates. The field emission results revealed that an emitter density of 7 nanorods μm-2 and a tapered nanorod morphology generated a high field enhancement factor of 5884. This novel technique shows promise for applications in flat panel display technology.",

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AU - Weintraub, Benjamin

AU - Chang, Sehoon

AU - Singamaneni, Srikanth

AU - Han, Won Hee

AU - Choi, Young Jin

AU - Bae, Joonho

AU - Kirkham, Melanie

AU - Tsukruk, Vladimir V.

AU - Deng, Yulin

PY - 2008/10/22

Y1 - 2008/10/22

N2 - A simple, scalable, and cost-effective technique for controlling the growth density of ZnO nanorod arrays based on a layer-by-layer polyelectrolyte polymer film is demonstrated. The ZnO nanorods were synthesized using a low temperature (T = 90°C), solution-based method. The density-control technique utilizes a polymer thin film pre-coated on the substrate to control the mass transport of the reactant to the substrate. The density-controlled arrays were investigated as potential field emission candidates. The field emission results revealed that an emitter density of 7 nanorods μm-2 and a tapered nanorod morphology generated a high field enhancement factor of 5884. This novel technique shows promise for applications in flat panel display technology.

AB - A simple, scalable, and cost-effective technique for controlling the growth density of ZnO nanorod arrays based on a layer-by-layer polyelectrolyte polymer film is demonstrated. The ZnO nanorods were synthesized using a low temperature (T = 90°C), solution-based method. The density-control technique utilizes a polymer thin film pre-coated on the substrate to control the mass transport of the reactant to the substrate. The density-controlled arrays were investigated as potential field emission candidates. The field emission results revealed that an emitter density of 7 nanorods μm-2 and a tapered nanorod morphology generated a high field enhancement factor of 5884. This novel technique shows promise for applications in flat panel display technology.

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Density-controlled, solution-based growth of ZnO nanorod arrays via layer-by-layer polymer thin films for enhanced field emission

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