Slow Bloch modes for enhancing the absorption of light in thin films for photovoltaic cells

被引：97

作者：

Duche, David ^{[1
]}

Escoubas, Ludovic ^{[1
]}

Simon, Jean-Jacques ^{[1
]}

Torchio, Philippe ^{[1
]}

Vervisch, Wilfried ^{[1
]}

Flory, Francois ^{[2
]}

机构：

[1] Aix Marseille Univ, Inst Mat Microelect Nanosci Provence IM2NP, CNRS, UMR 6242, F-13397 Marseille 20, France

[2] Ecole Cent Marseille, IM2NP CNRS UMR 6242, F-13451 Marseille 20, France

来源：

APPLIED PHYSICS LETTERS | 2008年 / 92卷 / 19期

关键词：

D O I：

10.1063/1.2929747

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

This paper deals with the improvement of "light harvesting" in photovoltaic cells by using photonic nanostructures. We theoretically study a poly-3-hexylthiophene/[6,6]-phenyl-C61-butyric acid methyl ester (P3HT/PCBM) thin film periodically nanostructured in order to increase its absorption. The periodic nanostructuration allows "slow Bloch modes" (group velocity close to zero) to be coupled inside the material. The P3HT/PCBM photonic crystal parameters are adjusted to maximize the density of Bloch modes and obtain flat dispersion curves. The light-matter interaction is thus strongly enhanced, which results in a 35.6% increase of absorption in the 600-700 nm spectral range. (C) 2008 American Institute of Physics.

引用

页数：3

共 27 条

[1] Surface plasmon subwavelength optics
Barnes, WL
Dereux, A
Ebbesen, TW
[J]. NATURE, 2003, 424 (6950) : 824 - 830
[2] Poly (3-hexylthiophene) fibers for photovoltaic applications
Berson, Solenn
De Bettignies, Remi
Bailly, Severine
Guillerez, Stephane
[J]. ADVANCED FUNCTIONAL MATERIALS, 2007, 17 (08) : 1377 - 1384
[3] Device physics of polymer:fullerene bulk heterojunction solar cells
Blom, Paul W. M.
Mihailetchi, Valentin D.
Koster, L. Jan Anton
Markov, Denis E.
[J]. ADVANCED MATERIALS, 2007, 19 (12) : 1551 - 1566
[4] Implementation of submicrometric periodic surface structures toward improvement of organic-solar-cell performances
Cocoyer, C
Rocha, L
Sicot, L
Geffroy, B
de Bettignies, R
Sentein, C
Fiorini-Debuisschert, C
Raimond, P
[J]. APPLIED PHYSICS LETTERS, 2006, 88 (13)
[5] Implementation of a submicrometer patterning technique in azopolymer films towards optimization of photovoltaic solar cells efficiency
Cocoyer, C.
Rocha, L.
Fiorini-Debuisschert, C.
Sicot, L.
Vaufrey, D.
Sentein, C.
Geffroy, B.
Raimond, P.
[J]. THIN SOLID FILMS, 2006, 511 : 517 - 522
[6] Directional channel-drop filter based on a slow Bloch mode photonic crystal waveguide section
Drouard, E
Hattori, HT
Grillet, C
Kazmierczak, A
Letartre, X
Rojo-Romeo, P
Viktorovitch, P
[J]. OPTICS EXPRESS, 2005, 13 (08) : 3037 - 3048
[7] Periodic light coupler gratings in amorphous thin film solar cells
Eisele, C
Nebel, CE
Stutzmann, M
[J]. JOURNAL OF APPLIED PHYSICS, 2001, 89 (12) : 7722 - 7726
[8] SUBMICROMETER GRATINGS FOR SOLAR-ENERGY APPLICATIONS
HEINE, C
MORF, RH
[J]. APPLIED OPTICS, 1995, 34 (14): : 2476 - 2482
[9] Inverse relation between photocurrent and absorption layer thickness in polymer solar cells
Hoppe, Harald
Shokhovets, Sviatoslav
Gobsch, Gerhard
[J]. PHYSICA STATUS SOLIDI-RAPID RESEARCH LETTERS, 2007, 1 (01): : R40 - R42
[10] Hybrid nanorod-polymer solar cells
Huynh, WU
Dittmer, JJ
Alivisatos, AP
[J]. SCIENCE, 2002, 295 (5564) : 2425 - 2427

← 1 2 3 →