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hal.structure.identifierDepartment of Electrical Engineering
dc.contributor.authorZHOU, Yun Shen
hal.structure.identifierDepartment of Electrical Engineering
dc.contributor.authorFAN, Li Sha
hal.structure.identifierDepartment of Electrical Engineering
dc.contributor.authorXIE, Zhi Qiang
hal.structure.identifierSchool of Mechanical Engineering
dc.contributor.authorJIANG, Lan
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorSILVAIN, Jean-François
hal.structure.identifierDepartment of Electrical Engineering
dc.contributor.authorLU, Yong Feng
dc.date.issued2015
dc.identifier.issn1359-0286
dc.description.abstractEnControl of chemical reactions is the essence of chemistry, producing designed outcomes while suppressing unwanted side products. Laser-assisted molecular vibrational control has been demonstrated to be a potential approach to influencing the outcome of a chemical reaction. In this article, we reviewed recent progress in the laser control of diamond synthesis through vibrational excitation of precursor molecules in a laser-assisted combustion chemical vapor deposition process. Significantly promoted diamond deposition rate (139 μm/h) and crystalline quality were achieved by resonantly exciting the Q-branch (ΔJ = 0) of the CH2-wagging mode (v7 mode 949.3 cm−1) of C2H4 molecules. Resonant excitation of the fundamental vibrational modes is more effective in promoting diamond growth than random vibrational excitation. Control of diamond crystallographic orientation was also realized by resonantly exciting the R branch (ΔJ = 1) of the CH2-wagging mode of C2H4 molecules and resulted in the preferential growth of {1 0 0}-oriented diamond crystals. Nitrogen-doped diamond films with a nitrogen concentration of 1.5 × 1020 atoms/cm3 were synthesized by resonantly exciting the rotational–vibrational transition (J = 5 → J′ = 6, K = 0) of the N–H wagging mode (v2 mode) in ammonia molecules. The findings demonstrate the feasibility of laser-assisted vibrational control in steering chemical reactions and controlling reaction outcomes.
dc.language.isoen
dc.publisherElsevier
dc.subject.enDiamond
dc.title.enLaser-assisted vibrational control of precursor molecules in diamond synthesis
dc.typeArticle de revue
dc.identifier.doi10.1016/j.cossms.2014.10.003
dc.subject.halChimie/Matériaux
bordeaux.journalCurrent Opinion in Solid State and Materials Science
bordeaux.page107-144
bordeaux.volume19
bordeaux.issue2
bordeaux.peerReviewedoui
hal.identifierhal-01135944
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-01135944v1
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