Sensitization of the Blue-green Electroluminescence by Gadolinium Coupled to Si Nanocluster Embedded in a SiO2 Matrix

被引：0

作者：

Prucnal, Slawomir ^{[1
]}

Rebohle, Lars ^{[1
]}

Sun, Jiaming ^{[1
,3
]}

Skorupa, Wolfgang ^{[1
]}

Drozdziel, Andrzej ^{[2
]}

Pyszniak, Krzysztof ^{[2
]}

Turek, Marcin ^{[2
]}

Filiks, Janusz ^{[2
]}

Zuk, Jerzy ^{[2
]}

机构：

[1] Forschungszentrum Dresden Rossendorf, Inst Ion Beam Phys & Mat Res, D-01314 Dresden, Germany

[2] Marie Curie Sklodowska Univ, Inst Phys, PL-20031 Lublin, Poland

[3] Nankai Univ, Inst Phys, Tianjin 300071, Peoples R China

来源：

MATERIALS SCIENCE-MEDZIAGOTYRA | 2013年 / 19卷 / 02期

关键词：

electroluminescence; Gd; Si-nanocrystals; MOSLED; energy transfer; SILICON; PHOTOLUMINESCENCE; MECHANISM;

D O I：

10.5755/j01.ms.19.2.1789

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this work an enhancement of the blue and green electroluminescence (EL) related to silicon inclusions into SiO2 layer by gadolinium co-doping was investigated. The blue (460 nm) and green (550 nm) EL corresponds to the oxygen-deficient-centres (ODC) and Si nanoclusters with average diameter around 1 nm, respectively. After gadolinium co-doping a fourfold increase of the total EL intensity was observed. It was found that the increase of the blue and green EL is due to the energy transfer from Gd3+ ions to the ODC defects and amorphous silicon nanoclusters. Moreover, the gadolinium co-doping increases the concentration of the small silicon nanoclusters.

引用

页码：125 / 128

页数：4

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