Synthesis of Eu2+-Doped AlN Phosphors by Carbothermal Reduction

Authors: Yin, Liang-Jun1; Xu, Xin1; Yu, Wei1; Yang, Jin-Guo1; Yang, Li-Xun1; Yang, Xiu-Fang1; Hao, Lu-Yuan1; Liu, Xue-Jian2

Source: Journal of the American Ceramic Society, Volume 93, Number 6, June 2010 , pp. 1702-1707(6)

Publisher: Wiley-Blackwell

Buy & download fulltext article:

OR

Price: $48.00 plus tax (Refund Policy)

Abstract:

Eu2+-doped aluminum nitride (AlN) phosphors were prepared by a carbothermal reduction process in ambient N2 atmosphere. Their structures and luminescence properties were studied in terms of the reaction temperature, soaking time, Eu2+ concentration, and carbon content. Pure AlN:Eu2+ phosphors could be obtained with a reaction temperature of 1750°C and a soaking time of 8 h. The dominant emission wavelength of the phosphor could be tuned widely from blue to green by changing the carbon content, which was attributed to the decrease of oxygen content with the increase of carbon content. An obvious enhancement in luminescence intensity was observed by the addition of Li+ to the host of AlN:Eu2+ phosphors, which was due to the promotion of crystallinity, the increase of grain size, and the decrease of lattice distortion.

Document Type: Research Article

DOI: http://dx.doi.org/10.1111/j.1551-2916.2010.03638.x

Affiliations: 1: Laboratory of Materials for Energy Conversion, Department of Materials Science and Engineering, University of Science and Technology of China, Hefei 230026, China 2: Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China

Publication date: June 1, 2010

Related content

Tools

Key

Free Content
Free content
New Content
New content
Open Access Content
Open access content
Subscribed Content
Subscribed content
Free Trial Content
Free trial content

Text size:

A | A | A | A
Share this item with others: These icons link to social bookmarking sites where readers can share and discover new web pages. print icon Print this page