Photoconductive characteristics of single-crystal CdS nanoribbons

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

  • J. S. Jie
  • Y. Jiang
  • X. M. Meng
  • Y. Q. Li
  • S. T. Lee

Detail(s)

Original languageEnglish
Pages (from-to)1887-1892
Journal / PublicationNano Letters
Volume6
Issue number9
Publication statusPublished - Sep 2006

Abstract

The photoconductive characteristics of CdS single nanoribbons were Investigated. The device characteristics, including spectral response, light intensity response, and time response, were studied systematically. It is found that CdS nanoribbon has the response speed substantively faster than those ever reported for conventional film and bulk CdS materials and the size of nanoribbons has a significant influence on the response speed with smaller CdS nanoribbons showing higher response speed. The high photosensitivity and high photoresponse speed are attributable to the large surface-to-volume ratio and high single-crystal quality of CdS nanoribbons and the reduction of recombination barrier in nanostructures. Measurements in a different atmosphere demonstrate that the absorption of ambient gas (mainly oxygen) can significantly change the photosensitivity of CdS nanoribbons through trapping electrons from the nanoribbons. © 2006 American Chemical Society.

Citation Format(s)

Photoconductive characteristics of single-crystal CdS nanoribbons. / Jie, J. S.; Zhang, W. J.; Jiang, Y.; Meng, X. M.; Li, Y. Q.; Lee, S. T.

In: Nano Letters, Vol. 6, No. 9, 09.2006, p. 1887-1892.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review