Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Research › peer-review
Gas phase association reactions in 13-15 CVD : Annoying obstacle or rewarding advantage? / Timoshkin, Alexey Y.
EUROCVD-15: Fifteenth European Conference on Chemical Vapor Deposition. ed. / A. Devi; R. Fischer; H. Parala; M.D. Allendorf; M. Hitchman. Vol. PV 2005-09 2005. p. 87-94.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Research › peer-review
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TY - GEN
T1 - Gas phase association reactions in 13-15 CVD
T2 - 15th European Conference on Chemical Vapor Deposition, EUROCVD-15
AU - Timoshkin, Alexey Y.
PY - 2005
Y1 - 2005
N2 - Chemistry of gas phase association reactions in 13-15 CVD has been reviewed. Results of the extensive quantum chemical modeling of group 13-15 CVD show high thermodynamic favorability of the association reactions even at elevated (700-1000 K) temperatures. Formation of a variety of ring, cage and cluster species is viable in vapors; among them the needle-shaped oligomers and polymers are predicted to have an exceptional stability. Thus, generation of 13-15 nanowires and nanoparticles via association route emerges as a viable alternative to the traditional surface-based CVD techniques. Competitiveness of the metal - pnictogen and metal - carbon bonds results in carbon inclusion into the cluster core with formation of the 13-15-carbon cages, which are expected to be kinetically stable. This may limit the practical use of the association reactions starting from the metallorganic precursors. Formation of the nitrogen-rich adamantine-like cages is viable in the excess of ammonia at temperatures below 700K.
AB - Chemistry of gas phase association reactions in 13-15 CVD has been reviewed. Results of the extensive quantum chemical modeling of group 13-15 CVD show high thermodynamic favorability of the association reactions even at elevated (700-1000 K) temperatures. Formation of a variety of ring, cage and cluster species is viable in vapors; among them the needle-shaped oligomers and polymers are predicted to have an exceptional stability. Thus, generation of 13-15 nanowires and nanoparticles via association route emerges as a viable alternative to the traditional surface-based CVD techniques. Competitiveness of the metal - pnictogen and metal - carbon bonds results in carbon inclusion into the cluster core with formation of the 13-15-carbon cages, which are expected to be kinetically stable. This may limit the practical use of the association reactions starting from the metallorganic precursors. Formation of the nitrogen-rich adamantine-like cages is viable in the excess of ammonia at temperatures below 700K.
UR - http://www.scopus.com/inward/record.url?scp=31844439412&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:31844439412
VL - PV 2005-09
SP - 87
EP - 94
BT - EUROCVD-15
A2 - Devi, A.
A2 - Fischer, R.
A2 - Parala, H.
A2 - Allendorf, M.D.
A2 - Hitchman, M.
Y2 - 5 September 2005 through 9 September 2005
ER -
ID: 17372961