Direct Structuring of a Biomimetic Anti-Reflective, Self-Cleaning Surface for Light Harvesting in Organic Solar Cells

被引：71

作者：

Choi, Se-Jin ^{[1
]}

Huh, Sung-Yoon ^{[2
]}

机构：

[1] Minuta Technol Co Ltd, R&D Ctr, Songnam 51315, Gyeonggi Do, South Korea

[2] Seoul Natl Univ, Sch Chem & Biol Engn, Seoul 151744, South Korea

来源：

MACROMOLECULAR RAPID COMMUNICATIONS | 2010年 / 31卷 / 06期

关键词：

anti-reflection; hierarchical structure; power conversion efficiency; replica molding; self cleaning; solar cell; COATINGS;

D O I：

10.1002/marc.200900658

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

A one-step method to fabricate a biomimetic dual-scale hierarchical structure for a transparent anti-reflective, self-cleaning layer for organic solar cells is reported. Template-mediated UV replica molding is used to directly create a multi-functional surface with an acrylate-functionalized perfluoropolyether without complicated processing steps. The surface exhibits superhydrophobic properties and self-cleaning characteristics. In addition, the surface leads to an enhancement of photovoltaic power conversion efficiency by approximate to 10% as a result of reflection suppression and transmittance enhancement. The method can easily be applied to large area substrates (22 cm x 24 cm) in a cost-effective manner. Furthermore, the solar cell can withstand harsh outdoor conditions for a long time, without a notable change in the device performance, owing to robust surface layer and non-fouling properties.

引用

页码：539 / 544

页数：6

共 24 条

[1] 20-PERCENT EFFICIENCY SILICON SOLAR-CELLS [J].

BLAKERS, AW ;

GREEN, MA .

APPLIED PHYSICS LETTERS, 1986, 48 (03) :215-217

[2] Nanoporosity-driven superhydrophilicity:: A means to create multifunctional antifogging coatings [J].

Cebeci, FÇ ;

Wu, ZZ ;

Zhai, L ;

Cohen, RE ;

Rubner, MF .

LANGMUIR, 2006, 22 (06) :2856-2862

[3] Anti-reflection (AR) coatings made by sol-gel processes: A review [J].

Chen, DG .

SOLAR ENERGY MATERIALS AND SOLAR CELLS, 2001, 68 (3-4) :313-336

[4] Fabrication of texturing antireflection structures in solar cells by using the defocusing exposure in optical lithography [J].

Chen, H. L. ;

Fan, Wonder ;

Cheng, C. C. ;

Lin, C. H. ;

Huang, K. T. .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2006, 153 (09) :G802-G806

[5] Direct UV-replica molding of biomimetic hierarchical structure for selective wetting [J].

Choi, Se-Jin ;

Suh, Kahp Y. ;

Lee, Hong H. .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2008, 130 (20) :6312-+

[6] A geometry controllable approach for the fabrication of biomimetic hierarchical structure and its superhydrophobicity with near-zero sliding angle [J].

Choi, Se-Jin ;

Suh, Kahp Y. ;

Lee, Hong H. .

NANOTECHNOLOGY, 2008, 19 (27)

[7] An ultraviolet-curable mold for sub-100-nm lithography [J].

Choi, SJ ;

Yoo, PJ ;

Baek, SJ ;

Kim, TW ;

Lee, HH .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2004, 126 (25) :7744-7745

[8]

Feast W.J., 1993, POLYM SURFACES INTER

[9] Design and creation of superwetting/antiwetting surfaces [J].

Feng, Xinjian ;

Jiang, Lei .

ADVANCED MATERIALS, 2006, 18 (23) :3063-3078

[10] Reversibly erasable nanoporous anti-reflection coatings from polyelectrolyte multilayers [J].

Hiller, J ;

Mendelsohn, JD ;

Rubner, MF .

NATURE MATERIALS, 2002, 1 (01) :59-63

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