A large interconnecting network within hybrid MEH-PPV/TiO2 nanorod photovoltaic devices

作者：Zeng, Tsung-Wei^*; Lin, Yun-Yue; Lo, Hsi-Hsing; Chen, Chun-Wei; Chen, Cheng-Hsuan; Liou, Sz-Chian; Huang, Hong-Yun; Su, Wei-Fang

来源：Nanotechnology, 2006, 17(21): 5387-5392.

DOI：10.1088/0957-4484/17/21/017

• SOLAR-CELLS
• TIO2 NANOCRYSTALS
• NANOCOMPOSITES
• COMPOSITES
• MORPHOLOGY
• OXIDE

This is a study of hybrid photovoltaic devices based on TiO2 nanorods and poly[2-methoxy-5-(2'-ethyl-hexyloxy)-1,4-phenylene vinylene] (MEH-PPV). We use TiO2 nanorods as the electron acceptors and conduction pathways. Here we describe how to develop a large interconnecting network within the photovoltaic device fabricated by inserting a layer of TiO2 nanorods between the MEH-PPV:TiO2 nanorod hybrid active layer and the aluminium electrode. The formation of a large interconnecting network provides better connectivity to the electrode, leading to a 2.5-fold improvement in external quantum efficiency as compared to the reference device without the TiO2 nanorod layer. A power conversion efficiency of 2.2% under illumination at 565 nm and a maximum external quantum efficiency of 24% at 430 nm are achieved. A power conversion efficiency of 0.49% is obtained under Air Mass 1.5 illumination.

• 出版日期2006-11-14