Violet/blue light-emitting cerium silicates

被引:40
作者
Choi, WC
Lee, HN
Kim, EK
Kim, Y
Park, CY
Kim, HS
Lee, JY
机构
[1] KIST, Semicond Mat Lab, Seoul 130650, South Korea
[2] DongA Univ, Coll Nat Sci, Dept Phys, Pusan 604714, South Korea
[3] Sungkyunkwan Univ, Dept Phys, Suwon 440746, South Korea
[4] Korea Adv Inst Sci & Technol, Dept Mat Sci & Engn, Taejon 305701, South Korea
关键词
D O I
10.1063/1.125023
中图分类号
O59 [应用物理学];
学科分类号
摘要
We observed violet/blue light emitted from cerium silicates which may be useful for silicon-based optoelectronics. The cerium silicate was produced during a rapid thermal annealing at high temperature (> 1100 degrees C) from the interface between silicon substrate and cerium oxide film. Detailed experiments including x-ray diffraction, high-resolution transmission electron microscope, and Auger depth profiling showed that the cerium silicate consists of Ce-4.667(SiO4)(3)O and Ce2Si2O7 phases. The photoluminescence of the cerium silicate is very strong at room temperature. Specifically, the 358 nm luminescence line is attributed to the Ce2Si2O7 phase. (C) 1999 American Institute of Physics. [S0003-6951(99)03342-2].
引用
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页码:2389 / 2391
页数:3
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