Temperature-dependent photoluminescence of surface-engineered silicon nanocrystals

被引：20
|
作者：
Mitra, Somak [1 ]
Svrcek, Vladimir [2 ]
Macias-Montero, Manual [1 ]
Velusamy, Tamilselvan [1 ]
Mariotti, Davide [1 ]
机构：
[1] Univ Ulster, Nanotechnol & Integrated Bioengn Ctr NIBEC, Coleraine BT52 1SA, Londonderry, North Ireland
[2] AIST, Res Ctr Photovolta Technol, Tsukuba, Ibaraki 3058568, Japan
来源：
SCIENTIFIC REPORTS | 2016年 / 6卷
基金：
英国工程与自然科学研究理事会;
关键词：
SI NANOCRYSTALS; POROUS SILICON; OPTICAL-PROPERTIES; ROOM-TEMPERATURE; NANOSECOND LASER; LIGHT-EMISSION; LUMINESCENCE; BLUE; STATES;
D O I：
10.1038/srep27727
中图分类号：
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
In this work we report on temperature-dependent photoluminescence measurements (15-300 K), which have allowed probing radiative transitions and understanding of the appearance of various transitions. We further demonstrate that transitions associated with oxide in SiNCs show characteristic vibronic peaks that vary with surface characteristics. In particular we study differences and similarities between silicon nanocrystals (SiNCs) derived from porous silicon and SiNCs that were surface-treated using a radio-frequency (RF) microplasma system.
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收藏
页数：9
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