期刊
SOLAR ENERGY MATERIALS AND SOLAR CELLS
卷 95, 期 5, 页码 1339-1343出版社
ELSEVIER
DOI: 10.1016/j.solmat.2010.08.011
关键词
Organic solar cells; Organic photovoltaics; ITO-free; Current collecting grid; Printed anode; High conductive PEDOT:PSS
资金
- European Commission [7 ICT 2009, 248678]
- Dutch ministry of economic affairs of the Netherlands
The presence of a transparent conductive electrode such as indium tin oxide (ITO) limits the reliability and cost price of organic photovoltaic devices as it is brittle and expensive. Moreover, the relative high sheet resistance of an ITO electrode on flexible substrates limits the maximum width of a single cell. We have developed an alternative ITO-free transparent anode, based on solution processed high conductive PEDOT:PSS in combination with a printed current collecting grid. The screen printed silver grid demonstrates a typical sheet resistance of 1 Omega/square with 6.4-8% surface coverage. The efficiency of a flexible device with an active area of 4 cm(2) with such a grid is much higher than a similar device based on ITO. Furthermore, as this composite anode is solution-processed, it is a step forward towards low-cost large area processing. (C) 2010 Elsevier B.V. All rights reserved.
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