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Scoring molecular wires subject to an ultrafast laser pulse for molecular electronic devices
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dc.contributor.author | Lu, Hui | |
dc.contributor.author | Azizi, Alireza | |
dc.contributor.author | Mi, Xiao Peng | |
dc.contributor.author | Wenjing, Yu | |
dc.contributor.author | Peng, Yuting | |
dc.contributor.author | Xu, Tianlv | |
dc.contributor.author | Früchtl, Herbert | |
dc.contributor.author | van Mourik, Tanja | |
dc.contributor.author | Kirk, Steven R | |
dc.contributor.author | Jenkins, Samantha | |
dc.date.accessioned | 2023-05-18T08:31:25Z | |
dc.date.available | 2023-05-18T08:31:25Z | |
dc.date.issued | 2023-08-05 | |
dc.identifier | 284924065 | |
dc.identifier | a120b509-a5d4-4abe-9ea0-f154affb7d46 | |
dc.identifier | 37133985 | |
dc.identifier | 85158113258 | |
dc.identifier.citation | Lu , H , Azizi , A , Mi , X P , Wenjing , Y , Peng , Y , Xu , T , Früchtl , H , van Mourik , T , Kirk , S R & Jenkins , S 2023 , ' Scoring molecular wires subject to an ultrafast laser pulse for molecular electronic devices ' , Journal of Computational Chemistry , vol. 44 , no. 21 , pp. 1776-1785 . https://doi.org/10.1002/jcc.27126 | en |
dc.identifier.issn | 0192-8651 | |
dc.identifier.other | Jisc: 1084729 | |
dc.identifier.other | Jisc: 1084729 | |
dc.identifier.other | ORCID: /0000-0001-6647-4266/work/135454686 | |
dc.identifier.other | ORCID: /0000-0001-7683-3293/work/135454925 | |
dc.identifier.uri | https://hdl.handle.net/10023/27639 | |
dc.description | Funding: The Hunan Natural Science Foundation of China project gratefully acknowledged approval number: 2022JJ30029. The One Hundred Talents Foundation of Hunan Province is also gratefully acknowledged for the support of S.J. and S.R.K. H.F. and T.v.M. gratefully acknowledge computational support via the EaStCHEM Research Computing Facility. | en |
dc.description.abstract | A nonionizing ultrafast laser pulse of 20-fs duration with a peak amplitude electric-field ±E = 200 × 10−4 a.u. was simulated. It was applied to the ethene molecule to consider its effect on the electron dynamics, both during the application of the laser pulse and for up to 100 fs after the pulse was switched off. Four laser pulse frequencies ω = 0.2692, 0.2808, 0.2830, and 0.2900 a.u. were chosen to correspond to excitation energies mid-way between the (S1,S2), (S2,S3), (S3,S4) and (S4,S5) electronic states, respectively. Scalar quantum theory of atoms in molecules (QTAIM) was used to quantify the shifts of the C1—C2 bond critical points (BCPs). Depending on the frequencies ω selected, the C1—C2 BCP shifts were up to 5.8 times higher after the pulse was switched off compared with a static E -field with the same magnitude. Next generation QTAIM (NG-QTAIM) was used to visualize and quantify the directional chemical character. In particular, polarization effects and bond strengths, in the form of bond-rigidity vs. bond-flexibility, were found, for some laser pulse frequencies, to increase after the laser pulse was switched off. Our analysis demonstrates that NG-QTAIM, in partnership with ultrafast laser irradiation, is useful as a tool in the emerging field of ultrafast electron dynamics, which will be essential for the design, and control of molecular electronic devices. | |
dc.format.extent | 10 | |
dc.format.extent | 1307879 | |
dc.format.extent | 4658260 | |
dc.language.iso | eng | |
dc.relation.ispartof | Journal of Computational Chemistry | en |
dc.subject | QD Chemistry | en |
dc.subject | NDAS | en |
dc.subject | MCC | en |
dc.subject.lcc | QD | en |
dc.title | Scoring molecular wires subject to an ultrafast laser pulse for molecular electronic devices | en |
dc.type | Journal article | en |
dc.contributor.institution | University of St Andrews. School of Chemistry | en |
dc.contributor.institution | University of St Andrews. Centre for Research into Equality, Diversity & Inclusion | en |
dc.contributor.institution | University of St Andrews. EaSTCHEM | en |
dc.identifier.doi | https://doi.org/10.1002/jcc.27126 | |
dc.description.status | Peer reviewed | en |
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