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Low-temperature route to nanoscale P3N5 hollow spheres

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Abstract

Nanoscale hollow spheres of amorphous phosphorus nitride (P3N5) were synthesized by reacting PCl3 with NaN3 at 150–250 °C. Transmission electron microscope images show that the hollow spheres have a diameter of 150–350 nm, and the thickness of the shell is 20 nm. A very small amount of curly films were also found in the sample prepared at 150 °C. The infrared spectrum indicates a high degree of purity. X-ray photoelectron spectroscopy indicates the presence of P and N, with a molar ratio of 1:1.62 for P:N. Ultraviolet-visible absorption spectroscopy shows an absorption band at 265–315 nm. Under photoluminescent excitation at 230 nm, the P3N5 emits ultraviolet light at 305 nm. With a band gap of 4.28 eV, the products may be a wide gap semiconductor. A possible mechanism and the influence of temperature on the formation of the hollow spheres are also discussed.

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Authors and Affiliations

  1. Department of Chemistry, University of Science and Technology of China, 230026, Hefei, Anhui, People’s Republic of China

    Hongzhou Gu, Yunle Gu, Zhefeng Li & Yongcheng Ying

  2. Structure Research Laboratory and Department of Chemistry, University of Science and Technology of China, 230026, Hefei, Anhui, People’s Republic of China

    Yitai Qian

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  1. Hongzhou Gu
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  2. Yunle Gu
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  3. Zhefeng Li
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  4. Yongcheng Ying
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  5. Yitai Qian
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Correspondence to Yitai Qian.

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Gu, H., Gu, Y., Li, Z. et al. Low-temperature route to nanoscale P3N5 hollow spheres. Journal of Materials Research 18, 2359–2363 (2003). https://doi.org/10.1557/JMR.2003.0330

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  • DOI: https://doi.org/10.1557/JMR.2003.0330

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