Lowest energy Frenkel and charge transfer exciton intermixing in one-dimensional copper phthalocyanine molecular lattice

Bondarev, I. V.; Popescu, A.; Younts, R. A.; Hoffman, B.; McAfee, T.; Dougherty, D. B.; Gundogdu, K.; Ade, H. W.

doi:10.1063/1.4968821

Title: Lowest energy Frenkel and charge transfer exciton intermixing in one-dimensional copper phthalocyanine molecular lattice

Journal Article · Tue Nov 29 00:00:00 EST 2016 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.4968821· OSTI ID:1465951

^[1]; Popescu, A. ^[1]; Younts, R. A. ^[2]; Hoffman, B. ^[2]; McAfee, T. ^[2]; Dougherty, D. B. ^[2]; Gundogdu, K. ^[2]; Ade, H. W. ^[3]

North Carolina Central University, Durham, NC (United States). Department of Mathematics and Physics
North Carolina State Univ., Raleigh, NC (United States). Department of Physics
North Carolina State Univ., Raleigh, NC (United States). Department of Physics and Department of Materials Science and Engineering

In this work, we report the results of the combined experimental and theoretical studies of the low-lying exciton states in crystalline copper phthalocyanine. We derive the eigen energy spectrum for the two lowest intramolecular Frenkel excitons coupled to the intermolecular charge transfer exciton state and compare it with temperature dependent optical absorption spectra measured experimentally, to obtain the parameters of the Frenkel-charge-transfer exciton intermixing. The two Frenkel exciton states are spaced apart by 0.26 eV, and the charge transfer exciton state is 50 meV above the lowest Frenkel exciton. Both Frenkel excitons are strongly mixed with the charge transfer exciton, showing the coupling constant 0.17 eV which agrees with earlier experimental measurements. Finally, these results can be used for the proper interpretation of the physical properties of crystalline phthalocyanines.

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Research Organization:: North Carolina Central Univ., Durham, NC (United States)

Sponsoring Organization:: USDOE Office of Science (SC)

Grant/Contract Number:: SC0007117

OSTI ID:: 1465951

Alternate ID(s):: OSTI ID: 1333350

Journal Information:: Applied Physics Letters, Vol. 109, Issue 21; ISSN 0003-6951

Publisher:: American Institute of Physics (AIP)Copyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 15 works

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Cited By (3)

Complexes of dipolar excitons in layered quasi-two-dimensional nanostructures Bondarev, Igor V.; Vladimirova, Maria R. Physical Review B, Vol. 97, Issue 16 https://doi.org/10.1103/physrevb.97.165419	journal	April 2018
Charge transfer from and to manganese phthalocyanine: bulk materials and interfaces Rückerl, Florian; Waas, Daniel; Büchner, Bernd Beilstein Journal of Nanotechnology, Vol. 8 https://doi.org/10.3762/bjnano.8.160	journal	January 2017
Complexes of dipolar excitons in layered quasi-two-dimensional nanostructures Bondarev, Igor V.; Vladimirova, Maria R. arXiv https://doi.org/10.48550/arxiv.1712.10312	text	January 2017

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