Squaraine Planar-Heterojunction Solar Cells

<table>Energy level diagram of the organic materials and electrodes. The work function of Ca of <svg height="11.175" id="M21" style="vertical-align:-0.20474pt" version="1.1" viewbox="0 0 30.299999 11.175" width="30.299999" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
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</svg> eV is not shown in this diagram.</table>

International Journal of Photoenergy

Squaraine Planar-Heterojunction Solar Cells

Figure 2