Enhanced absorption by nanostructured silicon

被引：20

作者：

Bandiera, S. ^{[1
]}

Jacob, D. ^{[1
]}

Muller, T. ^{[1
]}

Marquier, F. ^{[1
]}

Laroche, M. ^{[1
]}

Greffet, J. -J. ^{[1
]}

机构：

[1] Ecole Cent Paris, Lab Energet Mol & Macroscop, Combust CNRS UPR 288, F-92295 Chatenay Malabry, France

来源：

APPLIED PHYSICS LETTERS | 2008年 / 93卷 / 19期

关键词：

elemental semiconductors; energy gap; infrared spectra; nanostructured materials; semiconductor thin films; silicon;

D O I：

10.1063/1.3021480

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Some applications such as ultrafast detectors or high efficiency photovoltaics require absorption by thin films. However, close to the bandgap, silicon absorbs very poorly. In this letter, we show that the absorption of a 100 nm slab can be as high as 50% in the range of wavelengths 700-830 nm when using a periodic structure properly designed.

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页数：3

相关论文

共 11 条

[1] Zero infrared reflectance anomaly in doped silicon lamellar gratings .1. From antireflection to total absorption [J].

Auslender, M ;

Hava, S .

INFRARED PHYSICS & TECHNOLOGY, 1995, 36 (07) :1077-1088

[2] ALGORITHM FOR THE RIGOROUS COUPLED-WAVE ANALYSIS OF GRATING DIFFRACTION [J].

CHATEAU, N ;

HUGONIN, JP .

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION, 1994, 11 (04) :1321-1331

[3] ORGAN PIPE RADIANT MODES OF PERIODIC MICROMACHINED SILICON SURFACES [J].

HESKETH, PJ ;

ZEMEL, JN ;

GEBHART, B .

NATURE, 1986, 324 (6097) :549-551

[4] Coherent thermal emission by microstructured waveguides [J].

Joulain, Karl ;

Loizeau, Alexandre .

JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER, 2007, 104 (02) :208-216

[5] Optical properties of deep lamellar gratings: A coupled Bloch-mode insight [J].

Lalanne, Philippe ;

Hugonin, Jean Paul ;

Chavel, Pierre .

JOURNAL OF LIGHTWAVE TECHNOLOGY, 2006, 24 (06) :2442-2449

[6] Tuning the optical response of nanocylinder arrays:: An analytical study [J].

Laroche, Marine ;

Albaladejo, Silvia ;

Gomez-Medina, Raquel ;

Saenz, Juan Jose .

PHYSICAL REVIEW B, 2006, 74 (24)

[7] Engineering infrared emission properties of silicon in the near field and the far field [J].

Marquier, F ;

Joulain, K ;

Mulet, JP ;

Carminati, R ;

Greffet, JJ .

OPTICS COMMUNICATIONS, 2004, 237 (4-6) :379-388

[8]

OSSICINI S, 2003, OSSICINI LIGHT EMITT

[9]

Palik ED., 1985, Handbook of Optical Constants of Solids, DOI 10.1016/C2009-0-20920-2

[10] LAMELLAR METALLIC GRATING ANOMALIES [J].

POPOV, E ;

TSONEV, L ;

MAYSTRE, D .

APPLIED OPTICS, 1994, 33 (22) :5214-5219