1
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urRehman S, Fatima S, Muhammad S, Bibi S, Munawar KS, Al-Sehemi AG, Chaudhry AR, Adnan M. Quantum chemical framework for tailoring N/B doped phenalene derivatives to achieve high performance nonlinear optical materials. J Mol Graph Model 2024; 128:108723. [PMID: 38340692 DOI: 10.1016/j.jmgm.2024.108723] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Revised: 01/27/2024] [Accepted: 01/29/2024] [Indexed: 02/12/2024]
Abstract
Nonlinear optical (NLO) response materials are among the smartest materials of the era and are employed to modulate the phase and frequency of the laser. The present study presents a quantum chemical framework for tailoring nitrogen/boron doped derivatives of Dihydrodibenzo [de,op]pentacene through terminal and central core modifications. The derivatives of these compounds have been designed by introducing various π-conjugated connectors as well as B/N heteroatoms in the phenalene rings. Density functional theory (DFT) methods are used to optimize the ground state molecular geometries of designed compounds, represented as 1 to 4 (phenalene derivatives) and 1-BN to 4-BN (B/N doped phenalene derivatives) at the M06-2X/6-311G* level of theory. The highest value of 116.9 × 10-24 esu and 240.2 × 10-24 esu for isotropic and anisotropic linear polarizability is shown by compound 4. Among the designed compounds, 4-BN has achieved the highest γ amplitude of 1858 × 10-36 esu owing to its unique molecular structural design. Further analysis of electronic parameters, such as electron density difference (EDD) maps, the density of states, electrostatic potentials, transition density matrix (TDM) analysis, and frontier molecular orbitals analysis (FMOs), demonstrated the more effective intramolecular charge transfer (ICT) for the best compounds, resulting in a good NLO response. The compounds were also analyzed for their potential in photovoltaic applications based on factors such as open circuit voltage values determined to be between (0.14 eV and 1.82 eV), and light harvesting efficiency (0.425-0.909).
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Affiliation(s)
- Shafiq urRehman
- Department of Chemistry, University of Agriculture Faisalabad, Faisalabad, 38000, Pakistan
| | - Saliha Fatima
- Department of Chemistry, University of Agriculture Faisalabad, Faisalabad, 38000, Pakistan
| | - Shabbir Muhammad
- Department of Chemistry, College of Science, King Khalid University, Abha, 61413, P.O. Box 9004, Abha, 61413, Saudi Arabia.
| | - Shamsa Bibi
- Department of Chemistry, University of Agriculture Faisalabad, Faisalabad, 38000, Pakistan
| | - Khurram Shahzad Munawar
- Department of Chemistry, University of Mianwali, Mianwali, 42200, Pakistan; Institute of Chemistry, University of Sargodha, Sargodha, 40100, Pakistan
| | - Abdullah G Al-Sehemi
- Department of Chemistry, University of Agriculture Faisalabad, Faisalabad, 38000, Pakistan
| | - Aijaz Rasool Chaudhry
- Department of Physics, College of Science, University of Bisha, Bisha, P.O. Box 551, 61922, Saudi Arabia
| | - Muhammad Adnan
- Graduate School of Energy Science and Technology, Chungnam National University, Daejeon, 34134, Republic of Korea
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2
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Shafiq F, Mubarik A, Rafiq M, Alshehri SM. Star-shaped small donor molecules based on benzotriindole for efficient organic solar cells: a DFT study. J Mol Model 2024; 30:76. [PMID: 38376621 DOI: 10.1007/s00894-024-05870-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2024] [Accepted: 02/06/2024] [Indexed: 02/21/2024]
Abstract
CONTEXT The purpose of the S01-S05 series of end-capped modified donor chromophores is to amplify the energy conversion efficiency of organic solar cells. Using quantum chemical modeling, the photophysical and photoelectric characteristics of the S01-S05 geometries are examined. METHOD The influence of side chain replacement on multiple parameters, including the density of states (DOS), molecular orbital analysis (FMOS), exciton-binding energy (Eb), molecular electrostatic potential analysis, dipole moment (μ), and photovoltaic characteristics including open circuit voltage (VOC), and PCE at minimal energy state geometries, has been investigated employing density functional theory along with TD-DFT analysis. The molar absorption coefficient (λmax) of all the proposed compounds (S01-S05) was efficiently enhanced by the terminal acceptor alteration technique, as demonstrated by their scaling up with the reference molecule (SR). Among all molecules, S04 has shown better absorption properties with a red shift in absorption having λmax at 845 nm in CHCl3 solvent and narrow energy gap (EG) 1.83 eV with least excitation energy (Ex) of 1.4657 eV. All created donors exhibited improved FF and VOC than the SR, which significantly raised PCE and revealed their great efficiency as OSC. Consequently, the results recommended these star-shaped molecules as easily attainable candidates for constructing extremely efficient OSCs.
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Affiliation(s)
- Faiza Shafiq
- School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing, 210094, People's Republic of China
| | - Adeel Mubarik
- School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing, 210094, People's Republic of China.
| | - Mahira Rafiq
- Department of Chemistry, University of Agriculture, Faisalabad, 38000, Pakistan
| | - Saad M Alshehri
- Department of Chemistry, College of Science, King Saud University, 11451, Riyadh, Saudi Arabia
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3
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Herbert JM. Visualizing and characterizing excited states from time-dependent density functional theory. Phys Chem Chem Phys 2024; 26:3755-3794. [PMID: 38226636 DOI: 10.1039/d3cp04226j] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2024]
Abstract
Time-dependent density functional theory (TD-DFT) is the most widely-used electronic structure method for excited states, due to a favorable combination of low cost and semi-quantitative accuracy in many contexts, even if there are well recognized limitations. This Perspective describes various ways in which excited states from TD-DFT calculations can be visualized and analyzed, both qualitatively and quantitatively. This includes not just orbitals and densities but also well-defined statistical measures of electron-hole separation and of Frenkel-type exciton delocalization. Emphasis is placed on mathematical connections between methods that have often been discussed separately. Particular attention is paid to charge-transfer diagnostics, which provide indicators of when TD-DFT may not be trustworthy due to its categorical failure to describe long-range electron transfer. Measures of exciton size and charge separation that are directly connected to the underlying transition density are recommended over more ad hoc metrics for quantifying charge-transfer character.
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Affiliation(s)
- John M Herbert
- Department of Chemistry & Biochemistry, The Ohio State University, Columbus, Ohio 43210, USA.
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4
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Riaz S, Hussain R, Adnan M, Khan MU, Muhammad S, Yaqoob J, Alvi MU, Khalid M, Irshad Z, Ayub K. Ab Initio Study of Two-Dimensional Cross-Shaped Non-Fullerene Acceptors for Efficient Organic Solar Cells. ACS OMEGA 2022; 7:10638-10648. [PMID: 35382331 PMCID: PMC8973122 DOI: 10.1021/acsomega.2c00285] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Accepted: 03/07/2022] [Indexed: 05/05/2023]
Abstract
In the present work, five novel non-fullerene acceptor molecules are represented to explore the significance of organic solar cells (OSCs). The electro-optical properties of the designed A-D-A-type molecules rely on the central core donor moiety associated with different halogen families such as fluorine, chlorine, and bromine atoms and acyl, nitrile, and nitro groups as acceptor moieties. Among these, M1 exhibits the maximum absorption (λmax) at 728 nm in a chloroform solvent as M1 has nitro and nitrile groups in the terminal acceptor, which is responsible for the red shift in the absorption coefficient as compared to R (716 nm). M1 also shows the lowest value of the energy band gap (2.07 eV) with uniform binding energy in the range of 0.50 eV for all the molecules. The transition density matrix results reveal that easy dissociation of the exciton is possible in M1. The highest value of the dipole moment (4.6 D) indicates the significance of M4 and M2 in OSCs as it reduces the chance of charge recombination. The low value of λe is given by our designed molecules concerning reference molecules, indicating their enhanced electron mobility. Thus, these molecules can serve as the most economically efficient material. Hence, all newly designed non-fullerene acceptors provide an overview for further development in the performance of OSCs.
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Affiliation(s)
- Saim Riaz
- Department
of Chemistry, University of Okara, Okara 5630, Pakistan
| | - Riaz Hussain
- Department
of Chemistry, University of Okara, Okara 5630, Pakistan
| | - Muhammad Adnan
- Graduate
School of Energy Science and Technology, Chungnam National University, Daejeon 34134, Republic
of Korea
| | | | - Shabbir Muhammad
- Department
of Chemistry, College of Science, King Khalid
University, P.O. Box 9004, Abha 61413, Saudi Arabia
| | - Junaid Yaqoob
- Department
of Chemistry, University of Okara, Okara 5630, Pakistan
| | | | - Muhammad Khalid
- Department
of Chemistry, Khwaja Fareed University of
Engineering & Information Technology, Rahim Yar Khan 64200, Pakistan
| | - Zobia Irshad
- Department
of Chemistry, Chosun University, Gwangju 61452, Republic of Korea
| | - Khurshid Ayub
- Department
of Chemistry, COMSATS University, Abbottabad 22060, Pakistan
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5
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Williams JR, Tancogne-Dejean N, Ullrich CA. Time-Resolved Exciton Wave Functions from Time-Dependent Density-Functional Theory. J Chem Theory Comput 2021; 17:1795-1805. [PMID: 33577734 DOI: 10.1021/acs.jctc.0c01334] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Time-dependent density-functional theory (TDDFT) is a computationally efficient first-principles approach for calculating optical spectra in insulators and semiconductors including excitonic effects. We show how exciton wave functions can be obtained from TDDFT via the Kohn-Sham transition density matrix, both in the frequency-dependent linear-response regime and in real-time propagation. The method is illustrated using one-dimensional model solids. In particular, we show that our approach provides insight into the formation and dissociation of excitons in real time. This opens the door to time-resolved studies of exciton dynamics in materials by means of real-time TDDFT.
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Affiliation(s)
- Jared R Williams
- Department of Physics and Astronomy, University of Missouri, Columbia, Missouri 65211, United States
| | | | - Carsten A Ullrich
- Department of Physics and Astronomy, University of Missouri, Columbia, Missouri 65211, United States
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6
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García A, Papior N, Akhtar A, Artacho E, Blum V, Bosoni E, Brandimarte P, Brandbyge M, Cerdá JI, Corsetti F, Cuadrado R, Dikan V, Ferrer J, Gale J, García-Fernández P, García-Suárez VM, García S, Huhs G, Illera S, Korytár R, Koval P, Lebedeva I, Lin L, López-Tarifa P, Mayo SG, Mohr S, Ordejón P, Postnikov A, Pouillon Y, Pruneda M, Robles R, Sánchez-Portal D, Soler JM, Ullah R, Yu VWZ, Junquera J. Siesta: Recent developments and applications. J Chem Phys 2020; 152:204108. [DOI: 10.1063/5.0005077] [Citation(s) in RCA: 119] [Impact Index Per Article: 29.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Affiliation(s)
- Alberto García
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC), Bellaterra E-08193, Spain
| | - Nick Papior
- DTU Computing Center, Technical University of Denmark, 2800 Kgs. Lyngby, Denmark
| | - Arsalan Akhtar
- Catalan Institute of Nanoscience and Nanotechnology - ICN2, CSIC and BIST, Campus UAB, 08193 Bellaterra, Spain
| | - Emilio Artacho
- CIC Nanogune BRTA, Tolosa Hiribidea 76, 20018 San Sebastián, Spain
- Donostia International Physics Center (DIPC), Paseo Manuel de Lardizabal 4, 20018 Donostia-San Sebastian, Spain
- Ikerbasque, Basque Foundation for Science, 48011 Bilbao, Spain
- Theory of Condensed Matter, Cavendish Laboratory, University of Cambridge, Cambridge CB3 0HE, United Kingdom
| | - Volker Blum
- Department of Mechanical Engineering and Materials Science, Duke University, Durham, North Carolina 27708, USA
- Department of Chemistry, Duke University, Durham, North Carolina 27708, USA
| | - Emanuele Bosoni
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC), Bellaterra E-08193, Spain
| | - Pedro Brandimarte
- Donostia International Physics Center (DIPC), Paseo Manuel de Lardizabal 4, 20018 Donostia-San Sebastian, Spain
| | - Mads Brandbyge
- DTU Physics, Center for Nanostructured Graphene (CNG), Technical University of Denmark, Kgs. Lyngby DK-2800, Denmark
| | - J. I. Cerdá
- Instituto de Ciencia de Materiales de Madrid ICMM-CSIC, Cantoblanco, 28049 Madrid, Spain
| | - Fabiano Corsetti
- CIC Nanogune BRTA, Tolosa Hiribidea 76, 20018 San Sebastián, Spain
| | - Ramón Cuadrado
- Catalan Institute of Nanoscience and Nanotechnology - ICN2, CSIC and BIST, Campus UAB, 08193 Bellaterra, Spain
| | - Vladimir Dikan
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC), Bellaterra E-08193, Spain
| | - Jaime Ferrer
- Department of Physics, University of Oviedo, Oviedo 33007, Spain
- Nanomaterials and Nanotechnology Research Center, CSIC - Universidad de Oviedo, Oviedo 33007, Spain
| | - Julian Gale
- Curtin Institute for Computation, Institute for Geoscience Research (TIGeR), School of Molecular and Life Sciences, Curtin University, P.O. Box U1987, Perth, WA 6845, Australia
| | - Pablo García-Fernández
- Departamento de Ciencias de la Tierra y Física de la Materia Condensada, Universidad de Cantabria, Cantabria Campus Internacional, Avenida de los Castros s/n, 39005 Santander, Spain
| | - V. M. García-Suárez
- Department of Physics, University of Oviedo, Oviedo 33007, Spain
- Nanomaterials and Nanotechnology Research Center, CSIC - Universidad de Oviedo, Oviedo 33007, Spain
| | - Sandra García
- Catalan Institute of Nanoscience and Nanotechnology - ICN2, CSIC and BIST, Campus UAB, 08193 Bellaterra, Spain
| | - Georg Huhs
- Barcelona Supercomputing Center, c/Jordi Girona, 29, 08034 Barcelona, Spain
| | - Sergio Illera
- Catalan Institute of Nanoscience and Nanotechnology - ICN2, CSIC and BIST, Campus UAB, 08193 Bellaterra, Spain
| | - Richard Korytár
- Department of Condensed Matter Physics, Faculty of Mathematics and Physics, Charles University, Ke Karlovu 5, 121 16 Praha 2, Czech Republic
| | - Peter Koval
- Simune Atomistics S.L., Tolosa Hiribidea, 76, 20018 Donostia-San Sebastian, Spain
| | - Irina Lebedeva
- CIC Nanogune BRTA, Tolosa Hiribidea 76, 20018 San Sebastián, Spain
| | - Lin Lin
- Department of Mathematics, University of California, Berkeley, California 94720, USA
- Computational Research Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - Pablo López-Tarifa
- Centro de Física de Materiales, Centro Mixto CSIC-UPV/EHU, Paseo Manuel de Lardizabal 5, 20018 Donostia-San Sebastian, Spain
| | - Sara G. Mayo
- Departamento de Física de la Materia Condensada, Universidad Autónoma de Madrid, 28049 Madrid, Spain
| | - Stephan Mohr
- Barcelona Supercomputing Center, c/Jordi Girona, 29, 08034 Barcelona, Spain
| | - Pablo Ordejón
- Catalan Institute of Nanoscience and Nanotechnology - ICN2, CSIC and BIST, Campus UAB, 08193 Bellaterra, Spain
| | - Andrei Postnikov
- LCP-A2MC, Université de Lorraine, 1 Bd Arago, F-57078 Metz, France
| | - Yann Pouillon
- Departamento de Ciencias de la Tierra y Física de la Materia Condensada, Universidad de Cantabria, Cantabria Campus Internacional, Avenida de los Castros s/n, 39005 Santander, Spain
| | - Miguel Pruneda
- Catalan Institute of Nanoscience and Nanotechnology - ICN2, CSIC and BIST, Campus UAB, 08193 Bellaterra, Spain
| | - Roberto Robles
- Centro de Física de Materiales, Centro Mixto CSIC-UPV/EHU, Paseo Manuel de Lardizabal 5, 20018 Donostia-San Sebastian, Spain
| | - Daniel Sánchez-Portal
- Donostia International Physics Center (DIPC), Paseo Manuel de Lardizabal 4, 20018 Donostia-San Sebastian, Spain
- Centro de Física de Materiales, Centro Mixto CSIC-UPV/EHU, Paseo Manuel de Lardizabal 5, 20018 Donostia-San Sebastian, Spain
| | - Jose M. Soler
- Departamento de Física de la Materia Condensada, Universidad Autónoma de Madrid, 28049 Madrid, Spain
- Instituto de Física de la Materia Condensada (IFIMAC), Universidad Autónoma de Madrid, 28049 Madrid, Spain
| | - Rafi Ullah
- CIC Nanogune BRTA, Tolosa Hiribidea 76, 20018 San Sebastián, Spain
- Departamento de Física de Materiales, UPV/EHU, Paseo Manuel de Lardizabal 3, 20018 Donostia-San Sebastián, Spain
| | - Victor Wen-zhe Yu
- Department of Mechanical Engineering and Materials Science, Duke University, Durham, North Carolina 27708, USA
| | - Javier Junquera
- Departamento de Ciencias de la Tierra y Física de la Materia Condensada, Universidad de Cantabria, Cantabria Campus Internacional, Avenida de los Castros s/n, 39005 Santander, Spain
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7
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Plasser F. TheoDORE: A toolbox for a detailed and automated analysis of electronic excited state computations. J Chem Phys 2020; 152:084108. [PMID: 32113349 DOI: 10.1063/1.5143076] [Citation(s) in RCA: 200] [Impact Index Per Article: 50.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
The advent of ever more powerful excited-state electronic structure methods has led to a tremendous increase in the predictive power of computation, but it has also rendered the analysis of these computations much more challenging and time-consuming. TheoDORE tackles this problem through providing tools for post-processing excited-state computations, which automate repetitive tasks and provide rigorous and reproducible descriptors. Interfaces are available for ten different quantum chemistry codes and a range of excited-state methods implemented therein. This article provides an overview of three popular functionalities within TheoDORE, a fragment-based analysis for assigning state character, the computation of exciton sizes for measuring charge transfer, and the natural transition orbitals used not only for visualization but also for quantifying multiconfigurational character. Using the examples of an organic push-pull chromophore and a transition metal complex, it is shown how these tools can be used for a rigorous and automated assignment of excited-state character. In the case of a conjugated polymer, we venture beyond the limits of the traditional molecular orbital picture to uncover spatial correlation effects using electron-hole correlation plots and conditional densities.
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Affiliation(s)
- F Plasser
- Department of Chemistry, Loughborough University, Loughborough LE11 3TU, United Kingdom
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8
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Kimber P, Plasser F. Toward an understanding of electronic excitation energies beyond the molecular orbital picture. Phys Chem Chem Phys 2020; 22:6058-6080. [DOI: 10.1039/d0cp00369g] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Can we gain an intuitive understanding of excitation energies beyond the molecular picture?
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Affiliation(s)
- Patrick Kimber
- Department of Chemistry
- Loughborough University
- Loughborough
- UK
| | - Felix Plasser
- Department of Chemistry
- Loughborough University
- Loughborough
- UK
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9
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Valero R, Morales-García Á, Illas F. Investigating the character of excited states in TiO2 nanoparticles from topological descriptors: implications for photocatalysis. Phys Chem Chem Phys 2020; 22:3017-3029. [DOI: 10.1039/c9cp05526f] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Excited state topological descriptors based on the attachment/detachment one-electron charge density are used to investigate the centroids of photoactive TiO2 nanoclusters and nanoparticles.
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Affiliation(s)
- Rosendo Valero
- Departament de Ciència de Materials i Química Física & Institut de Química Teòrica i Computacional (IQTCUB)
- Universitat de Barcelona
- 08028 Barcelona
- Spain
| | - Ángel Morales-García
- Departament de Ciència de Materials i Química Física & Institut de Química Teòrica i Computacional (IQTCUB)
- Universitat de Barcelona
- 08028 Barcelona
- Spain
| | - Francesc Illas
- Departament de Ciència de Materials i Química Física & Institut de Química Teòrica i Computacional (IQTCUB)
- Universitat de Barcelona
- 08028 Barcelona
- Spain
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10
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Affiliation(s)
- Felix Plasser
- Department of ChemistryLoughborough University Loughborough LE11 3TU United Kingdom
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11
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Diagnosis of two evaluation paths to density-based descriptors of molecular electronic transitions. ADVANCES IN QUANTUM CHEMISTRY 2019. [DOI: 10.1016/bs.aiq.2019.04.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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12
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Suzuki Y, Hagiwara S, Watanabe K. Time-Dependent Multicomponent Density Functional Theory for Coupled Electron-Positron Dynamics. PHYSICAL REVIEW LETTERS 2018; 121:133001. [PMID: 30312034 DOI: 10.1103/physrevlett.121.133001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2018] [Indexed: 06/08/2023]
Abstract
Electron-positron interactions have been utilized in various fields of science. Here we develop time-dependent multicomponent density functional theory to study the coupled electron-positron dynamics from first principles. We prove that there are coupled time-dependent single-particle equations that can provide the electron and positron density dynamics, and derive the formally exact expression for their effective potentials. Introducing the adiabatic local density approximation to time-dependent electron-positron correlation, we apply the theory to the dynamics of a positronic lithium hydride molecule under a laser field. We demonstrate the significance of the coupling between electronic and positronic motion by revealing the complex positron detachment mechanism and the suppression of electronic resonant excitation by the screening effect of the positron.
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Affiliation(s)
- Yasumitsu Suzuki
- Department of Physics, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan
| | - Satoshi Hagiwara
- Department of Physics, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan
| | - Kazuyuki Watanabe
- Department of Physics, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan
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13
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Schelter I, Kümmel S. Accurate Evaluation of Real-Time Density Functional Theory Providing Access to Challenging Electron Dynamics. J Chem Theory Comput 2018; 14:1910-1927. [DOI: 10.1021/acs.jctc.7b01013] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ingo Schelter
- Department of Physics, University of Bayreuth, 95440 Bayreuth, Germany
| | - Stephan Kümmel
- Department of Physics, University of Bayreuth, 95440 Bayreuth, Germany
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14
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Rossi TP, Kuisma M, Puska MJ, Nieminen RM, Erhart P. Kohn–Sham Decomposition in Real-Time Time-Dependent Density-Functional Theory: An Efficient Tool for Analyzing Plasmonic Excitations. J Chem Theory Comput 2017; 13:4779-4790. [DOI: 10.1021/acs.jctc.7b00589] [Citation(s) in RCA: 72] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Tuomas P. Rossi
- COMP
Centre of Excellence, Department of Applied Physics, Aalto University, P.O.
Box 11100, FI-00076 Aalto, Finland
| | - Mikael Kuisma
- Department
of Physics, Chalmers University of Technology, SE-412 96 Gothenburg, Sweden
- Department
of Chemistry, Nanoscience Center, University of Jyväskylä, FI-40014 Jyväskylä, Finland
| | - Martti J. Puska
- COMP
Centre of Excellence, Department of Applied Physics, Aalto University, P.O.
Box 11100, FI-00076 Aalto, Finland
| | - Risto M. Nieminen
- COMP
Centre of Excellence, Department of Applied Physics, Aalto University, P.O.
Box 11100, FI-00076 Aalto, Finland
| | - Paul Erhart
- Department
of Physics, Chalmers University of Technology, SE-412 96 Gothenburg, Sweden
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15
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Li Y, Ullrich CA. The particle-hole map: Formal derivation and numerical implementation. J Chem Phys 2016; 145:164107. [DOI: 10.1063/1.4966036] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Yonghui Li
- Department of Physics, Tianjin University, 92 Weijin Road, Tianjin 300072,China
- Department of Physics and Astronomy, University of Missouri, Columbia, Missouri 65211, USA
| | - Carsten A. Ullrich
- Department of Physics and Astronomy, University of Missouri, Columbia, Missouri 65211, USA
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16
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Poidevin C, Lepetit C, Ben Amor N, Chauvin R. Truncated Transition Densities for Analysis of (Nonlinear) Optical Properties of carbo-Chromophores. J Chem Theory Comput 2016; 12:3727-40. [PMID: 27359162 DOI: 10.1021/acs.jctc.6b00484] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The optical properties of several quadrupolar carbo-benzene derivatives are investigated at various levels of calculation (TDDFT and CASPT2) and analyzed using a new theoretical tool here disclosed: The "visualization" of the transition dipole moment from the transition density truncated to the main monoexcitations involved in the electronic transition (TTD). The experimental or calculated one-photon UV-visible absorption spectra of the carbo-benzene derivatives fit with the Gouterman model originally proposed for porphyrins, where the first four excited states involve linear combinations of monoexcitations of the same four frontier molecular orbitals. The relative intensities of the absorption bands are analyzed from the transition dipole moments calculated from the TTDs and an analogy between porphyrins and carbo-benzenes is argued. The two-photon absorption (TPA) cross section related to the third-order nonlinear optical response is calculated for each two-photon-allowed excited state |f⟩ from the contribution of all possible intermediate excited states |i⟩ using the "sum-over-state" (SOS) scheme. The quadrupolar carbo-benzene derivatives fit into the three-level model, as their TPA cross section exhibits a dominant contribution of one of the intermediate excited states. The origin of TPA efficiency (enhancement) upon carbo-merisation of the C-C link to the para-substituents is discussed from the excitation energies of the intermediate and final excited states and from the two corresponding transition dipole moments (μ0i and μif). The latter may be calculated from the TTDs.
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Affiliation(s)
- Corentin Poidevin
- CNRS, LCC (Laboratoire de Chimie de Coordination) , 205 route de Narbonne, BP 44099, F-31077 Toulouse Cedex 4, France.,Université de Toulouse, UPS, INP , F-31077 Toulouse Cedex 4, France
| | - Christine Lepetit
- CNRS, LCC (Laboratoire de Chimie de Coordination) , 205 route de Narbonne, BP 44099, F-31077 Toulouse Cedex 4, France.,Université de Toulouse, UPS, INP , F-31077 Toulouse Cedex 4, France
| | - Nadia Ben Amor
- Laboratoire de Chimie et Physique Quantiques, UMR 5626 (CNRS), IRSAMC, Université P. Sabatier , 118 Route de Narbonne, 31062 Toulouse Cedex, France
| | - Remi Chauvin
- CNRS, LCC (Laboratoire de Chimie de Coordination) , 205 route de Narbonne, BP 44099, F-31077 Toulouse Cedex 4, France.,Université de Toulouse, UPS, INP , F-31077 Toulouse Cedex 4, France
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Koval P, Marchesin F, Foerster D, Sánchez-Portal D. Optical response of silver clusters and their hollow shells from linear-response TDDFT. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2016; 28:214001. [PMID: 27147701 DOI: 10.1088/0953-8984/28/21/214001] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
We present a study of the optical response of compact and hollow icosahedral clusters containing up to 868 silver atoms by means of time-dependent density functional theory. We have studied the dependence on size and morphology of both the sharp plasmonic resonance at 3-4 eV (originated mainly from sp-electrons), and the less studied broader feature appearing in the 6-7 eV range (interband transitions). An analysis of the effect of structural relaxations, as well as the choice of exchange correlation functional (local density versus generalised gradient approximations) both in the ground state and optical response calculations is also presented. We have further analysed the role of the different atom layers (surface versus inner layers) and the different orbital symmetries on the absorption cross-section for energies up to 8 eV. We have also studied the dependence on the number of atom layers in hollow structures. Shells formed by a single layer of atoms show a pronounced red shift of the main plasmon resonances that, however, rapidly converge to those of the compact structures as the number of layers is increased. The methods used to obtain these results are also carefully discussed. Our methodology is based on the use of localised basis (atomic orbitals, and atom-centered and dominant-product functions), which bring several computational advantages related to their relatively small size and the sparsity of the resulting matrices. Furthermore, the use of basis sets of atomic orbitals also allows the possibility of extending some of the standard population analysis tools (e.g. Mulliken population analysis) to the realm of optical excitations. Some examples of these analyses are described in the present work.
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Affiliation(s)
- Peter Koval
- Centro de Física de Materiales, Centro Mixto CSIC-UPV/EHU and Donostia International Physics Center (DIPC), Paseo Manuel de Lardizabal 5, 20018 Donostia-San Sebastián, Spain
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18
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Affiliation(s)
- Felix Plasser
- Institute for Theoretical Chemistry, Faculty of Chemistry, University of Vienna, Währingerstr. 17, 1090 Vienna, Austria
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Li Y, Moghe D, Patil S, Guha S, Ullrich CA. Visualisation of charge-transfer excitations in donor–acceptor molecules using the particle–hole map: a case study. Mol Phys 2016. [DOI: 10.1080/00268976.2015.1137642] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Yonghui Li
- Department of Physics and Astronomy, Vanderbilt University, Nashville, TN, USA
- Department of Physics and Astronomy, University of Missouri, Columbia, MO, USA
| | - Dhanashree Moghe
- Chemical Engineering and Materials Science, Michigan State University, East Lansing, MI, USA
| | - Satish Patil
- Solid State and Structural Chemistry Unit, Indian Institute of Science, Bangalore, India
| | - Suchismita Guha
- Department of Physics and Astronomy, University of Missouri, Columbia, MO, USA
| | - Carsten A. Ullrich
- Department of Physics and Astronomy, University of Missouri, Columbia, MO, USA
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