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Visible photoluminescence from hydrogenated amorphous carbon films prepared by pulsed laser ablation of polymethyl methacrylate (PMMA)

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Abstract

Visible photoluminescence (PL) has been observed from the hydrogenated amorphous carbon (a-C:H) films prepared by ArF pulsed laser ablation of polymethyl methacrylate (PMMA) in the presence of hydrogen gas (H2). With increasing hydrogen concentration the PL intensity increases and the intensity maximum blue-shifted. The PL intensity also increases after hours of light illumination, exhibiting a light soaking enhancement. Increasing the deposition temperature decreases the PL and increases the ratio of sp3/sp2 bonds.

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Authors and Affiliations

  1. Department of Physics, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong

    Z. F. Li, Z. Y. Yang & R. F. Xiao

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  1. Z. F. Li
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  2. Z. Y. Yang
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  3. R. F. Xiao
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Z.F. Li is on leave from Department of Physics, Nanjing University, Nanjing 210093, P.R. China.

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Li, Z.F., Yang, Z.Y. & Xiao, R.F. Visible photoluminescence from hydrogenated amorphous carbon films prepared by pulsed laser ablation of polymethyl methacrylate (PMMA). Appl. Phys. A 63, 243–246 (1996). https://doi.org/10.1007/BF01567876

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  • DOI: https://doi.org/10.1007/BF01567876

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