HIGHLY CATALYTIC ACTIVE NANOSTRUCTURED Pt ELECTRODES FOR DYE-SENSITIZED SOLAR CELLS PREPARED BY LOW TEMPERATURE ELECTRODEPOSITION

Author:

LIN HONG1,HAO FENG1,LIN CHUN FU1,LI JIAN BAO1,WANG NING2

Affiliation:

1. State Key Lab of New Ceramics and Fine Processing, Department of Materials Science and Engineering, Tsinghua University, Beijing, 100084, P. R. China

2. State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu 610054, P. R. China

Abstract

Highly catalytic active nanostructured Pt electrodes (NPEs) for dye-sensitized solar cells (DSCs) are prepared on indium-doped tin oxide (ITO) conductive glasses using a nonionic surfactant-assisted low-temperature electrodeposition method with controlled quantity of electroplating charge. Transmission electron microscopy (TEM) and scanning electron microscope (SEM) show that the NPEs on ITO conductive glass are composed of nano-sized Pt particles with a diameter of 3–4 nm. Remarkably, with a similar thickness of ca. 38 nm, the NPE shows a charge-transfer resistance (R ct ) of 0.063 Ω ⋅ cm 2, a value almost 20 times lower than that of the sputtered Pt electrode, demonstrating the superior catalytic activity of the NPE. Furthermore, with almost half of the Pt loading, DSC device with NPE exhibits comparable photovoltaic performance with the conventionally sputtered Pt electrode.

Publisher

World Scientific Pub Co Pte Lt

Subject

General Materials Science

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