Enhancement of the external quantum efficiency of a silicon quantum dot light-emitting diode by localized surface plasmons

被引：125

作者：

Kim, Beak-Hyun ^{[1
]}

Cho, Chang-Hee ^{[1
]}

Mun, Jin-Soo ^{[1
]}

Kwon, Min-Ki ^{[1
]}

Park, Tae-Young ^{[1
]}

Kim, Jong Su ^{[2
]}

Byeon, Clare Chisu ^{[2
]}

Lee, Jongmin ^{[2
]}

Park, Seong-Ju ^{[1
]}

机构：

[1] Gwangju Inst Sci & Technol, Dept Mat Sci & Engn, Kwangju 500712, South Korea

[2] Gwangju Inst Sci & Technol, Adv Photon Res Inst, Kwangju 500712, South Korea

来源：

ADVANCED MATERIALS | 2008年 / 20卷 / 16期

关键词：

D O I：

10.1002/adma.200703096

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The electroluminescence intensity of a silicon quantum dot (Si QD) light-emitting diode (LED) with an Ag layer containing Ag particles can be enhanced by 434% relative to a Si QD LED without an Ag layer. The large enhancement is attributed to an increase in radiative quantum efficiency as a result of coupling between Si ODs and localized surface plasmons and increased current injection efficiency through improved carrier tunneling into Si QDs.

引用

页码：3100 / 3104

页数：5

共 29 条

[1] Surface plasmon subwavelength optics [J].

Barnes, WL ;

Dereux, A ;

Ebbesen, TW .

NATURE, 2003, 424 (6950) :824-830

[2] Spectral tuning of plasmon-enhanced silicon quantum dot luminescence [J].

Biteen, JS ;

Lewis, NS ;

Atwater, HA ;

Mertens, H ;

Polman, A .

APPLIED PHYSICS LETTERS, 2006, 88 (13)

[3] Enhanced radiative emission rate and quantum efficiency in coupled silicon nanocrystal-nanostructured gold emitters [J].

Biteen, JS ;

Pacifici, D ;

Lewis, NS ;

Atwater, HA .

NANO LETTERS, 2005, 5 (09) :1768-1773

[4] SILICON QUANTUM WIRE ARRAY FABRICATION BY ELECTROCHEMICAL AND CHEMICAL DISSOLUTION OF WAFERS [J].

CANHAM, LT .

APPLIED PHYSICS LETTERS, 1990, 57 (10) :1046-1048

[5]

Chance R.R., 1978, ADV CHEM PHYS, V37, P65, DOI DOI 10.1002/9780470142561.CH1

[6] VISIBLE-LIGHT EMISSION DUE TO QUANTUM SIZE EFFECTS IN HIGHLY POROUS CRYSTALLINE SILICON [J].

CULLIS, AG ;

CANHAM, LT .

NATURE, 1991, 353 (6342) :335-338

[7] Quantum theory of radiation [J].

Fermi, E .

REVIEWS OF MODERN PHYSICS, 1932, 4 (01) :0087-0132

[8] In situ electric field simulation in metal/insulator/metal capacitors [J].

Gaillard, Nicolas ;

Pinzelli, Luc ;

Gros-Jean, Mickael ;

Bsiesy, Ahmad .

APPLIED PHYSICS LETTERS, 2006, 89 (13)

[9] SPECTROSCOPIC PROPERTIES OF MOLECULES INTERACTING WITH SMALL DIELECTRIC PARTICLES [J].

GERSTEN, J ;

NITZAN, A .

JOURNAL OF CHEMICAL PHYSICS, 1981, 75 (03) :1139-1152

[10] Preparation and characterization of surface plasmon resonance tunable gold and silver films [J].

Gupta, R ;

Dyer, MJ ;

Weimer, WA .

JOURNAL OF APPLIED PHYSICS, 2002, 92 (09) :5264-5271

← 1 2 3 →