X-ray generation using carbon-nanofiber-based flexible field emitters

T. T. Tan, H. S. Sim, Shu Ping Lau, H. Y. Yang, M. Tanemura, J. Tanaka

Research output: Journal article publicationJournal articleAcademic researchpeer-review

59 Citations (Scopus)


Carbon nanofibers were grown on flexible polyimide substrates using an ion-beam sputtering technique. Field emission measurement showed a fairly low threshold voltage of 1.5 Vμm with a current density of 1 μA cm2. The field enhancement factor was determined to be 4400. The emitter showed resilience when exploited as a high voltage electron source for x-ray generation. The x-ray generated by the flexible emitter is capable of delivering fine images of biological samples with superior sharpness, resolution, and contrast.
Original languageEnglish
Article number103105
JournalApplied Physics Letters
Issue number10
Publication statusPublished - 20 Mar 2006
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)


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