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Title: Tin-Doped Inorganic Amorphous Films for Use as Transparent Monolithic Phosphors.
Authors: Masai, Hirokazu  kyouindb  KAKEN_id
Miyata, Hiroki
Yamada, Yasuhiro
Okumura, Shun
Yanagida, Takayuki
Kanemitsu, Yoshihiko  kyouindb  KAKEN_id
Author's alias: 正井, 博和
Issue Date: 10-Jun-2015
Publisher: Nature Publishing Group
Journal title: Scientific reports
Volume: 5
Thesis number: 11224
Abstract: Although inorganic crystalline phosphors can exhibit high quantum efficiency, their use in phosphor films has been limited by a reliance on organic binders that have poor durability when exposed to high-power and/or high excitation energy light sources. To address this problem, Sn(2+)-doped transparent phosphate films measuring several micrometers in thickness have been successfully prepared through heat treatment and a subsequent single dip-coating process. The resulting monolithic inorganic amorphous film exhibited an internal quantum efficiency of over 60% and can potentially utilize transmitted light. Analysis of the film's emissivity revealed that its color can be tuned by changing the amount of Mn and Sn added to influence the energy transfer from Sn(2+) to Mn(2+). It is therefore concluded that amorphous films containing such emission centers can provide a novel and viable alternative to conventional amorphous films containing crystalline phosphors in light-emitting devices.
Rights: This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
URI: http://hdl.handle.net/2433/201625
DOI(Published Version): 10.1038/srep11224
PubMed ID: 26061744
Appears in Collections:Journal Articles

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