The fabrication and characterization of dye-sensitized solar cells with a branched structure of ZnO nanowires

被引：138

作者：

Suh, D.-I.

Lee, S.-Y.

Kim, T.-H.

Chun, J.-M.

Suh, E.-K.

Yang, O.-B.

Lee, S.-K. ^{[1
]}

机构：

[1] Chonbuk Natl Univ, SPRC, Dept Semicond Sci & Technol, Jeonju 561756, South Korea

[2] Chonbuk Natl Univ, Sch Environm & Chem Engn, Jeonju 561756, South Korea

来源：

CHEMICAL PHYSICS LETTERS | 2007年 / 442卷 / 4-6期

基金：

新加坡国家研究基金会;

关键词：

D O I：

10.1016/j.cplett.2007.05.093

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

To maximize dye absorption and improve energy conversion efficiency, we adopted a branched structure for single crystalline ZnO nanowires in dye-sensitized solar cells (DSSCs). The high-density branched structures of these ZnO nanowires were incorporated by a two-step seeding with zinc acetate dihydrate seeds. The ZnO nanowire DSSCs exhibited an overall efficiency of similar to 0.46%. This represented a 35% improvement compared to the ZnO nanowire DSSCs with pillar-shaped ZnO nanowires. Our current density-voltage (J-V) characterizations suggest that the current densities and power conversion efficiencies were improved by increasing the surface area with these branched structures of ZnO nanowires in DSSCs. (c) 2007 Elsevier B.V. All rights reserved.

引用

页码：348 / 353

页数：6

共 16 条

[1] Synthesis and characterization of ZnO nanowires and their integration into dye-sensitized solar cells [J].