Phosphors for White LEDs in the Next Stage

Access this Article

Search this Article

Author(s)

Abstract

This paper reviews physical pictures of phosphor materials, which can meet requirements of diversified white-LED applications in the next stage. Suppression of thermal quenching and suitable band width of luminescence are the main concern. Basically tight space around an emitting ion and rigid chemical bonding can improve thermal quenching and narrow the band width. There are, however, other factors such as delocalization of an excited state leading to nanradiative processes. Preferable properties are discussed with reference to examples, e.g. La_2O_2S:Eu^<3+>, Y_3Al_5O_<12>:Ce^<3+> and CaAlSiN_3:Eu^<2+>, which show a difference in quenching temperature and β-SiAlON:Eu^<2+>, which has a narrow band width.

Journal

  • Journal of light and visual environment

    Journal of light and visual environment 32(2), 69-74, 2008-08-01

    Illuminating Engineering Institute of Japan

References:  11

  • <no title>

    ROYCE M. R.

    Electrochem. Soc. Spring Meeting, Abstr., 1969, 1969

    Cited by (1)

  • <no title>

    YAMAMOTO H.

    Phosphor Handbook, 2006

    Cited by (1)

  • <no title>

    BLASSE G.

    J. Electrochem. Soc. 114, 875, 1967

    Cited by (1)

  • <no title>

    DOBROV W. I.

    Appl. Phys. Lett. 21, 201, 1972

    Cited by (1)

  • <no title>

    ODAKI T.

    The 298^<th> Meeting Technical Digest of the Phosphor Research Society, 2003, 2003

    Cited by (1)

  • <no title>

    XIE R-J.

    J. Electrochem. Soc. 154, J314-J319, 2007

    Cited by (1)

  • <no title>

    XIE R-J

    Extended Abst. (The 68^<th> Autumn Meeting, 2007) The Japan Society of Appl. Phys. 3, 1473, 2007

    Cited by (1)

  • <no title>

    UHEDA K.

    Phys. Status Solidi A 203, 2712-2717, 2006

    DOI  Cited by (9)

  • <no title>

    MOINE B.

    J. Lumin 48&49, 501, 1991

    Cited by (1)

  • <no title>

    UEDA

    Electrochem. Solid-State Lett. 9, H22-H25, 2006

    Cited by (8)

  • <no title>

    OKAMOTO S.

    J. Electrochem. Soc. 10, J139-J142, 2007

    Cited by (1)

Codes

  • NII Article ID (NAID)
    110006663887
  • NII NACSIS-CAT ID (NCID)
    AA00258424
  • Text Lang
    ENG
  • Article Type
    REV
  • ISSN
    03878805
  • Data Source
    CJP  NII-ELS  NDL-Digital 
Page Top