Synthesis and field emission property of carbon nanotubes with sharp tips

Yan Li Zhang, Li Li Zhang, Peng Xiang Hou, Hua Jiang, Chang Liu*, Hui Ming Cheng

*Tämän työn vastaava kirjoittaja

Tutkimustuotos: LehtiartikkeliArticleScientificvertaisarvioitu

23 Sitaatiot (Scopus)

Abstrakti

Carbon nanotubes (CNTs) with sharp tips were synthesized by a hydrogen arc discharge method. Three unusual morphologies, i.e., a cone-shaped tip, a suddenly-shrinking tip, and a pencil point-like tip were observed. These novel tip structures are considered to be related to the addition of a small amount of silicon powder in the raw material, which may introduce structural defects in the CNTs. The field emission property of the sharp-tip CNTs was investigated, and a low threshold electric field of 3.75V/m, a high field emission current density of ~1.6 × 105A/cm2, and a good emission stability were demonstrated. The superior field emission performance of the CNTs can be attributed to their good crystallinity and unique tip structures.

AlkuperäiskieliEnglanti
Sivut52-56
Sivumäärä5
JulkaisuXinxing Tan Cailiao/New Carbon Materials
Vuosikerta26
Numero1
DOI - pysyväislinkit
TilaJulkaistu - 2011
OKM-julkaisutyyppiA1 Julkaistu artikkeli, soviteltu

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