Article

Journal of Electronic Materials

, Volume 41, Issue 7, pp 1941-1947

First online:

Growth of CdS Nanoneedles by Pulsed Laser Deposition

  • Li ChenAffiliated withKey Laboratory for Micro and Nanophotonic Structures of Ministry of Education, Department of Optical Science and Engineering, Fudan University
  • , Xiaoniu FuAffiliated withKey Laboratory for Micro and Nanophotonic Structures of Ministry of Education, Department of Optical Science and Engineering, Fudan University
  • , Jushui LaiAffiliated withKey Laboratory for Micro and Nanophotonic Structures of Ministry of Education, Department of Optical Science and Engineering, Fudan University
  • , Jian SunAffiliated withKey Laboratory for Micro and Nanophotonic Structures of Ministry of Education, Department of Optical Science and Engineering, Fudan University
  • , Zhifeng YingAffiliated withKey Laboratory for Micro and Nanophotonic Structures of Ministry of Education, Department of Optical Science and Engineering, Fudan University
  • , Jiada WuAffiliated withKey Laboratory for Micro and Nanophotonic Structures of Ministry of Education, Department of Optical Science and Engineering, Fudan University
  • , Ning XuAffiliated withKey Laboratory for Micro and Nanophotonic Structures of Ministry of Education, Department of Optical Science and Engineering, Fudan University Email author 

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Abstract

CdS nanoneedles have been grown on Ni-coated Si (100) substrates by pulsed laser deposition. Substrate temperature and Ni-catalyst layer thickness were found to have great effects on the density and morphology of the as-grown CdS nanoneedles. Crystalline CdS nanoneedles with middle diameter and length of about 40 nm to 100 nm and 400 nm to 1000 nm, respectively, could be obtained at 350°C to 450°C on Ni-coated silicon (100) substrates, and nanoneedles with good shapes were obtained at 400°C substrate temperature. From the cross-section morphologies, it was found that the CdS nanoneedles grew out of the base CdS crystallite layer with thickness of about 500 nm. Based on the experimental results, vapor–solid and vapor–liquid–solid growth modes describe the CdS nanoneedle growth.

Keywords

CdS nanoneedles pulsed laser deposition Ni-catalyst