Photoinduced absorption and luminescence in fullerene and its composite films with organic compound

Isobe, K.; Kaneto, Keiichi

doi:10.1016/0379-6779(94)02897-8

Cited by 3 publications

(2 citation statements)

References 8 publications

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“…Although, for neutral C 60 in solid form, a few experiments account for a very weak luminescence at RT, with an energy ͑around 1.7 eV͒, which always lies within the HOMO-LUMO gap. [12][13][14] A quenching or enhancement of photoluminescence ͑PL͒ or electroluminescence is expected with the change in the crystal symmetry resulting from some treatments. 9,10 For instance in studies of fullerene mixed with polystyrene, oxide materials ͑ZrO 2 , Al 2 O 3 , and SnO 2 ͒, 15 or polymerized and irradiated fullerene films 16,17 HOMO-LUMO radiative transitions were observed.…”

Section: Introductionmentioning

confidence: 99%

Modification of molecular transitions in fullerene films under ion impacts

Kumar

Podhorodecki

Misiewicz

et al. 2009

Journal of Applied Physics

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The photoluminescence properties of as-deposited and 90 MeV Si ion irradiated fullerene films are reported. The irradiation of fullerene films leads to some enhancement or quenching in molecular transition intensities (photoluminescence intensities) depending on the ion fluence. These effects are explained in terms of lowering in the energy level symmetry resulting from induced chemical disordering. The structural modifications occurring upon irradiation were investigated using Fourier transform infrared and UV-vis spectroscopies

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Section: Introductionmentioning

confidence: 99%

Modification of molecular transitions in fullerene films under ion impacts

Kumar

Podhorodecki

Misiewicz

et al. 2009

Journal of Applied Physics

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“…When C 60 is used as a dopant in a conducting polymer, Yoshino et al [7][8][9][10] found that the material exhibits various novel properties such as quenching of photoluminescence ͑PL͒ and electroluminescence ͑EL͒, enhancement of photoconductivity, and photoinduced absorption. 11 All those can be explained by photoinduced charge transfer.…”

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confidence: 99%

Photoluminescence study of C60 doped polystyrene

Zhang

Xiao

et al. 1996

Applied Physics Letters

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We report here a new phenomenon in photoluminescence of C60 doped in polystyrene. Under 488 nm cw laser radiation, the PL intensity of the sample was found to increase with time. With 10 h of irradiation, the PL signal strength increased by 10 times, comparable to that from porous Si. The peak of the PL was found to shift to high frequency as well. More detailed studies showed that such an irreversible change of the sample might be a result of the lowering symmetry of oxidized C60 fullerene in the polystyrene.

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Dependencies of Transport and Photoluminescence on Morphology of Vacuum Deposited C₆₀ Films

Kaneto

Rikitake

Akiyama

et al. 1997

Jpn. J. Appl. Phys.

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Electrical transport, its high field effects and photoluminescence are studied in C60 films deposited at various substrate temperatures. The morphology of films is characterized by X-ray diffraction and atomic force microscope. It is found that the electrical conductivity depends strongly on the morphology and the applied field. High conductivity is obtained for films prepared at high substrate temperatures and high fields. The emission peak shifts to the low energy side for highly crystalline films. The results are discussed in terms of the crystallinity and the delocalization of electrons.

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Photoinduced absorption and luminescence in fullerene and its composite films with organic compound

Cited by 3 publications

References 8 publications

Modification of molecular transitions in fullerene films under ion impacts

Modification of molecular transitions in fullerene films under ion impacts

Photoluminescence study of C60 doped polystyrene

Dependencies of Transport and Photoluminescence on Morphology of Vacuum Deposited C₆₀ Films

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Photoinduced absorption and luminescence in fullerene and its composite films with organic compound

Cited by 3 publications

References 8 publications

Modification of molecular transitions in fullerene films under ion impacts

Modification of molecular transitions in fullerene films under ion impacts

Photoluminescence study of C60 doped polystyrene

Dependencies of Transport and Photoluminescence on Morphology of Vacuum Deposited C60 Films

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Dependencies of Transport and Photoluminescence on Morphology of Vacuum Deposited C₆₀ Films