The effects of zinc on the characteristics of (Zn,Ca)TiO3:Pr3+ phosphors

Autor:	Sung Mook Chung, Seung Jae Lee, Seung-Youl Kang, Young Jin Kim, Kyoung Ik Cho, Woo-Seok Cheong, Chi-Sun Hwang, Jaeheon Shin
Rok vydání:	2011
Předmět:	Materials science business.industry chemistry.chemical_element Phosphor Zinc Condensed Matter Physics law.invention Inorganic Chemistry Crystallinity chemistry law Excited state Materials Chemistry Optoelectronics business Nuclear chemistry Light-emitting diode
Zdroj:	Journal of Crystal Growth. 326:94-97
ISSN:	0022-0248
DOI:	10.1016/j.jcrysgro.2011.01.060
Popis:	The effects of zinc on the zinc-doped CaTiO 3 :Pr 3+ phosphors have been investigated by varying the zinc concentrations from 0 to 100 mol%. The variation of zinc concentration influences the crystallinity and morphology of the phosphors. The crystallinity and PL intensity increase as zinc content increases from 0 to 25 mol%. (Zn,Ca)TiO 3 :Pr 3+ at 25 mol% Zn exhibits nearly 3.6 times enhanced PL intensity compared to CaTiO 3 :Pr 3+ . Moreover, the red emitting phosphor developed in this study can be very effectively excited at the wavelengths of 400 nm. We think that (Zn,Ca)TiO 3 :Pr 3+ can be used as a complementary phosphor in the red region for the white LEDs.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::2c9fcff11168765186dcd12dd034339e https://doi.org/10.1016/j.jcrysgro.2011.01.060 Zobrazit plný text záznamu Full Text from ScienceDirect