Optical properties of inorganic (SiO[sub 2])[sub 1-x](Nd[sub 2]O[sub 3])[sub x] alloy films for the color filter of plasma display panel

Lee, D. K.; Seo, S. M.; Lee, S. G.; Sohn, S. H.; Park, S. H.; Kim, H. M.
February 2002
Applied Physics Letters;2/11/2002, Vol. 80 Issue 6, p983
Academic Journal
In order to improve the primary color purity of the plasma display panel (PDP), inorganic (SiO[sub 2])[sub 1-x](Nd[sub 2]O[sub 3])[sub x] alloy films have been fabricated by the rf-magnetron sputtering method, and their optical properties have been investigated as functions of Nd[sub 2]O[sub 3] contents in films and thickness of films. The study has revealed that absorption in (SiO[sub 2])[sub 1-x](Nd[sub 2]O[sub 3])[sub x] films is due to intratransition within the 4f shell of the Nd[sup 3+] ion, and that it becomes larger with increasing Nd[sup 3+] ion concentrations in films and film thickness. In the PDP devices with our band rejection color filters, luminances from neon gas discharge itself and sidebands of phosphors are sufficiently reduced, resulting in wider color gamut and higher color purity. © 2002 American Institute of Physics.


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