Investigation of carbon nanoparticles converted from a polymer by UV-pulsed laser irradiation

Sumei Huang; Yongfeng Lu; Minghui Hong; Zhuo Sun; Siew It Pang; Jian Ping Wang

doi:10.1117/12.456873

25 February 2002 Investigation of carbon nanoparticles converted from a polymer by UV-pulsed laser irradiation

Sumei Huang, Yongfeng Lu, Minghui Hong, Zhuo Sun, Siew It Pang, Jian Ping Wang

Proceedings Volume 4426, Second International Symposium on Laser Precision Microfabrication; (2002) https://doi.org/10.1117/12.456873
Event: Second International Symposium on Laser Precision Micromachining, 2001, Singapore, Singapore

Abstract

Diamond-like polymer, poly(phenylcarbyne), films were irradiated by pulsed UV laser ((lambda) equals 248 nm) at an atmospheric pressure of nitrogen. The morphologies of the resulting samples were examined by scanning electron microscopy (SEM). The structures of the resulting films were investigated by Raman spectra and X-ray diffraction (XRD). The electron field emission properties of the films were investigated. The results indicate that the polymer is converted into nano-particle carbon films by pulsed laser irradiation. The converted carbon film shows good field emission properties, such as low turn-on threshold emission field, high emission current density and high emission light spot density. Field emission images from the converted carbon films have been demonstrated. The mechanisms of both carbon cluster conversion from the polymer and field emission of the converted carbon film have been discussed.

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Sumei Huang, Yongfeng Lu, Minghui Hong, Zhuo Sun, Siew It Pang, and Jian Ping Wang "Investigation of carbon nanoparticles converted from a polymer by UV-pulsed laser irradiation", Proc. SPIE 4426, Second International Symposium on Laser Precision Microfabrication, (25 February 2002); https://doi.org/10.1117/12.456873

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KEYWORDS

Carbon

Polymers

Polymer thin films

Laser irradiation

Scanning electron microscopy

Ultraviolet radiation

Pulsed laser operation

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