New fullerene-based mixed materials: Synthesis and characterization

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This is the final report of a three-year, Laboratory Directed Research and Development (LDRD) project at the Los Alamos National Laboratory (LANL). The authors present results of broadband femtosecond transient absorption and broadband nanosecond optical limiting studies of C{sub 60} and derivatized C{sub 60}. They have investigated both solutions and solid-state mixed materials (sol-gel glass hosts doped with fullerene guests). They show that derivatized fullerenes provide enhanced solubility and processability, with a ground-state absorption extended into the infrared compared with C{sub 60}. They have extensively studied both the dynamic optical response and the excited-state absorption cross sections of solutions and ... continued below

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11 pages

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McBranch, D.; Kohlman, R.; Klimov, V.; Grigorova, M.; Shi, X.; Smilowitz, L. et al. November 1, 1998.

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Description

This is the final report of a three-year, Laboratory Directed Research and Development (LDRD) project at the Los Alamos National Laboratory (LANL). The authors present results of broadband femtosecond transient absorption and broadband nanosecond optical limiting studies of C{sub 60} and derivatized C{sub 60}. They have investigated both solutions and solid-state mixed materials (sol-gel glass hosts doped with fullerene guests). They show that derivatized fullerenes provide enhanced solubility and processability, with a ground-state absorption extended into the infrared compared with C{sub 60}. They have extensively studied both the dynamic optical response and the excited-state absorption cross sections of solutions and solids for multiple wavelengths in the visible to near infrared. Wavelength-dependent studies show that the optical limiting response improves monotonically at longer wavelengths, demonstrating broadband limiting in all 6,6 mono-adducts and neat C{sub 60}. The authors report new approaches to processing sol-gel glass/fullerene composites to improve the optical limiting performance of solid-state materials to approach the response of solution limiters.

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11 pages

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OSTI as DE00676884

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  • Other Information: Supercedes report DE99000840; PBD: [1998]

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  • Other: DE99000840
  • Report No.: LA-UR--98-1832
  • Grant Number: W-7405-ENG-36
  • DOI: 10.2172/676884 | External Link
  • Office of Scientific & Technical Information Report Number: 676884
  • Archival Resource Key: ark:/67531/metadc712523

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  • November 1, 1998

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  • Sept. 12, 2015, 6:31 a.m.

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  • May 5, 2016, 7:38 p.m.

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McBranch, D.; Kohlman, R.; Klimov, V.; Grigorova, M.; Shi, X.; Smilowitz, L. et al. New fullerene-based mixed materials: Synthesis and characterization, report, November 1, 1998; New Mexico. (digital.library.unt.edu/ark:/67531/metadc712523/: accessed August 20, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.