✦ LIBER ✦

Enhancement of luminescence in ZnMgO thin-film nanophosphors and application for white light generation

✍ Scribed by Chawla, Santa ;Jayanthi, K. ;Chander, Harish

Publisher: John Wiley and Sons
Year: 2008
Tongue: English
Weight: 295 KB
Volume: 205
Category: Article
ISSN: 0031-8965
DOI: 10.1002/pssa.200723149

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

A series of ZnMgO thin‐film nanophosphors with varied Zn:Mg ratio has been prepared by chemical bath deposition. The structure, photoluminescence, time‐resolved decay and chromaticity of the films are presented. ZnMgO films absorb light efficiently in the near UV (330–400 nm) and the emission covers a large part of the visible spectrum. Luminescence enhancement is maximum for 25% Mg. All ZnMgO films show luminescence lifetimes in the microsecond range while low Mg content (0–10%) films also exhibit fast decay (10^–10^ s). Measured colorimetric coordinates of (0.28, 0.32) when excited by 350 nm light make them suitable for generation of white light in conjunction with near UV LEDs. (© 2008 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

📜 SIMILAR VOLUMES

Enhancement and stability of luminescenc

Enhancement and stability of luminescence in thin-film light-emitting devices based on heterostructure of ladder-type poly (p-phenylene)

✍ S.X. Wang; W.L. Wang; K.J. Liao; C.Z. Cai 📂 Article 📅 2002 🏛 Elsevier Science 🌐 English ⚖ 101 KB

The microcavity thin-film light-emitting devices were fabricated, which use two organic material layers, ladder-type poly(p-phenylene) (LPPP) and (8-hydroxyquimalin) aluminum (Alq 3 ), sandwiched between two injecting electrodes. With the ribbon-type macromolecule structure, the LPPP exhibits higher

Production of multicharged iron and nitr

Production of multicharged iron and nitrogen ions and application to enhance photo-catalytic performance in visible light region on TiO2 thin films

✍ Yushi Kato; Takashi Yoshinaga; Masashi Tomida; Shinichiro Kimpara 📂 Article 📅 2005 🏛 Elsevier Science 🌐 English ⚖ 226 KB

Enhancement of polarization in bismuth t

Enhancement of polarization in bismuth titanate thin films co-modified by La and Nd for non-volatile memory applications

✍ N.V. Giridharan; M. Subramanian; R. Jayavel 📂 Article 📅 2006 🏛 Springer 🌐 English ⚖ 1003 KB

The effect of gradual light absorption i

The effect of gradual light absorption in a film of non-negligible thickness: General formulas. Their application to an exponential emulsion under the one-quantic and the two-quantic hypothesis. Graphical construction of gamma as modified by gradual absorption for any characteristic curve belonging to a thin emulsion layer

✍ Ludwik Silberstein 📂 Article 📅 1951 🏛 Elsevier Science 🌐 English ⚖ 352 KB