Laser-assisted vibrational control of precursor molecules in diamond synthesis

Yun Shen Zhou, Li Sha Fan, Zhi Qiang Xie, Lan Jiang, Jean François Silvain, Yongfeng Lu

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Control 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.

Original languageEnglish (US)
Pages (from-to)107-114
Number of pages8
JournalCurrent Opinion in Solid State and Materials Science
Volume19
Issue number2
DOIs
StatePublished - Apr 1 2015

Fingerprint

Diamond
Diamonds
Molecules
Lasers
Chemical reactions
Nitrogen
Diamond films
Deposition rates
Ammonia
Chemical vapor deposition
Crystalline materials
Atoms
Crystals

Keywords

  • Combustion chemical vapor deposition
  • Diamond
  • Laser
  • Thin film
  • Vibrational excitation

ASJC Scopus subject areas

  • Materials Science(all)

Cite this

Laser-assisted vibrational control of precursor molecules in diamond synthesis. / Zhou, Yun Shen; Fan, Li Sha; Xie, Zhi Qiang; Jiang, Lan; Silvain, Jean François; Lu, Yongfeng.

In: Current Opinion in Solid State and Materials Science, Vol. 19, No. 2, 01.04.2015, p. 107-114.

Research output: Contribution to journalArticle

Zhou, Yun Shen ; Fan, Li Sha ; Xie, Zhi Qiang ; Jiang, Lan ; Silvain, Jean François ; Lu, Yongfeng. / Laser-assisted vibrational control of precursor molecules in diamond synthesis. In: Current Opinion in Solid State and Materials Science. 2015 ; Vol. 19, No. 2. pp. 107-114.
@article{67dc241549f3460bb2985f57eabb7fcb,
title = "Laser-assisted vibrational control of precursor molecules in diamond synthesis",
abstract = "Control 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.",
keywords = "Combustion chemical vapor deposition, Diamond, Laser, Thin film, Vibrational excitation",
author = "Zhou, {Yun Shen} and Fan, {Li Sha} and Xie, {Zhi Qiang} and Lan Jiang and Silvain, {Jean Fran{\cc}ois} and Yongfeng Lu",
year = "2015",
month = "4",
day = "1",
doi = "10.1016/j.cossms.2014.10.003",
language = "English (US)",
volume = "19",
pages = "107--114",
journal = "Current Opinion in Solid State and Materials Science",
issn = "1359-0286",
publisher = "Elsevier Limited",
number = "2",

}

TY - JOUR

T1 - Laser-assisted vibrational control of precursor molecules in diamond synthesis

AU - Zhou, Yun Shen

AU - Fan, Li Sha

AU - Xie, Zhi Qiang

AU - Jiang, Lan

AU - Silvain, Jean François

AU - Lu, Yongfeng

PY - 2015/4/1

Y1 - 2015/4/1

N2 - Control 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.

AB - Control 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.

KW - Combustion chemical vapor deposition

KW - Diamond

KW - Laser

KW - Thin film

KW - Vibrational excitation

UR - http://www.scopus.com/inward/record.url?scp=84924167114&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84924167114&partnerID=8YFLogxK

U2 - 10.1016/j.cossms.2014.10.003

DO - 10.1016/j.cossms.2014.10.003

M3 - Article

VL - 19

SP - 107

EP - 114

JO - Current Opinion in Solid State and Materials Science

JF - Current Opinion in Solid State and Materials Science

SN - 1359-0286

IS - 2

ER -