Two-band model description of electroabsorption and third-harmonic generation in 1-D MX linear chains

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Within a two-band model, the authors investigate the electroabsorption (EA) and third-harmonic generation (THG) processes in halogen-bridged mixed-valence Pt complexes: PtCl, PtBr and Ptl. For PtCl, the theoretical THG spectrum shows three peaks, corresponding to (i) a three-photon resonance at 0.83 eV originating in a M(etal)-M(etal) transition; (ii) a two-photon resonance at 1.5 eV from an M-M band-edge transition; and (iii) a three-photon resonance at 1.6 eV from an M-X transition. The latter two peaks account well for the twin-peak structure seen experimentally. They show that the twin-peak intensity strongly decreases from PtCl to PtBr and disappears for PtI. They ... continued below

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3 p.

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Shuai, Z.; Bredas, J. L.; Saxena, A.; Gammel, J. T. & Bishop, A. R. October 1, 1994.

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Within a two-band model, the authors investigate the electroabsorption (EA) and third-harmonic generation (THG) processes in halogen-bridged mixed-valence Pt complexes: PtCl, PtBr and Ptl. For PtCl, the theoretical THG spectrum shows three peaks, corresponding to (i) a three-photon resonance at 0.83 eV originating in a M(etal)-M(etal) transition; (ii) a two-photon resonance at 1.5 eV from an M-M band-edge transition; and (iii) a three-photon resonance at 1.6 eV from an M-X transition. The latter two peaks account well for the twin-peak structure seen experimentally. They show that the twin-peak intensity strongly decreases from PtCl to PtBr and disappears for PtI. They also discuss the theoretical EA spectra due to localized defects (polarons, bipolarons, kinks, and excitons).

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3 p.

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OSTI; NTIS; GPO Dep.

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  • International conference on science and technology of synthetic metals (ICSM `94),Seoul (Korea, Republic of),24-29 Jul 1994

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  • Other: DE95000932
  • Report No.: LA-UR--94-3206
  • Report No.: CONF-9407117--3
  • Grant Number: W-7405-ENG-36
  • Office of Scientific & Technical Information Report Number: 10188089
  • Archival Resource Key: ark:/67531/metadc1399509

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  • October 1, 1994

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  • Jan. 12, 2019, 4:41 p.m.

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  • Jan. 18, 2019, 3:24 p.m.

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Shuai, Z.; Bredas, J. L.; Saxena, A.; Gammel, J. T. & Bishop, A. R. Two-band model description of electroabsorption and third-harmonic generation in 1-D MX linear chains, article, October 1, 1994; New Mexico. (https://digital.library.unt.edu/ark:/67531/metadc1399509/: accessed May 24, 2019), University of North Texas Libraries, Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.