Synchrotron radiation induced decomposition of closo-1,2-dicarbadodecaborane

Dong Jin Byun, Seong don Hwang, Jiandi Zhang, Hong Zeng, F. Keith Perkins, G. Vidali, P. A. Dowben

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

We have observed that molecular films of closo-1,2-dicarbadodecaborane (C2B10H12) decompose due to exposure to synchrotron light. Dissociation results in films that form a heterogeneous intermediate phase between associative molecular fragments and solid, thin film boron-carbide. This heterogeneous phase has an observed electronic structure that is an admixture of the electronic structure observed for molecularly condensed orthocarborane and the electronic structure anticipated for rhombohedral boron-carbide (based on the B12 icosahedral `building block'). With the synchrotron radiation exposure at room temperature there is dissociative adsorption of this icosahedral molecule and the growth of boron-carbide film is enhanced. The composition of the growing film changes for very thin films on Si(111), as determined by the boron to carbon ratio. The boron concentration of the film increases with increasing film thickness until the boron to carbon ratio reaches 5 when the film thickness is approximately 12 angstroms. After about 12 angstroms of film growth the composition is constant, i.e. B5C.

Original languageEnglish
JournalJapanese Journal of Applied Physics, Part 2: Letters
Volume34
Issue number7 B
Publication statusPublished - 1995 Jan 1
Externally publishedYes

Fingerprint

Synchrotron radiation
Boron carbide
synchrotron radiation
Electronic structure
Decomposition
Boron
decomposition
boron carbides
Film growth
Film thickness
boron
electronic structure
Thin films
Carbon
film thickness
Chemical analysis
Synchrotrons
carbon
radiation dosage
thin films

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

Byun, D. J., Hwang, S. D., Zhang, J., Zeng, H., Perkins, F. K., Vidali, G., & Dowben, P. A. (1995). Synchrotron radiation induced decomposition of closo-1,2-dicarbadodecaborane. Japanese Journal of Applied Physics, Part 2: Letters, 34(7 B).

Synchrotron radiation induced decomposition of closo-1,2-dicarbadodecaborane. / Byun, Dong Jin; Hwang, Seong don; Zhang, Jiandi; Zeng, Hong; Perkins, F. Keith; Vidali, G.; Dowben, P. A.

In: Japanese Journal of Applied Physics, Part 2: Letters, Vol. 34, No. 7 B, 01.01.1995.

Research output: Contribution to journalArticle

Byun, DJ, Hwang, SD, Zhang, J, Zeng, H, Perkins, FK, Vidali, G & Dowben, PA 1995, 'Synchrotron radiation induced decomposition of closo-1,2-dicarbadodecaborane', Japanese Journal of Applied Physics, Part 2: Letters, vol. 34, no. 7 B.
Byun, Dong Jin ; Hwang, Seong don ; Zhang, Jiandi ; Zeng, Hong ; Perkins, F. Keith ; Vidali, G. ; Dowben, P. A. / Synchrotron radiation induced decomposition of closo-1,2-dicarbadodecaborane. In: Japanese Journal of Applied Physics, Part 2: Letters. 1995 ; Vol. 34, No. 7 B.
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