Abstract
We report on polymer-based solar cells prepared by the high-throughput
roll-to-roll gravure printing method. The engravings of the printing
plate, along with process parameters like printing speed and ink
properties, are studied to optimise the printability of the photoactive
as well as the hole transport layer. For the hole transport layer, the
focus is on testing different formulations to produce thorough wetting
of the indium-tin-oxide (ITO) substrate. The challenge for the
photoactive layer is to form a uniform layer with optimal nanomorphology
in the poly-3-hexylthiophene (P3HT) and [6,6]-phenyl-C61-butyric acid
methyl ester (PCBM) blend. This results in a power conversion efficiency
of 2.8% under simulated AM1.5G solar illumination for a solar cell
device with gravure-printed hole transport and a photoactive layer.
Original language | English |
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Pages (from-to) | 1673-1680 |
Number of pages | 8 |
Journal | Solar Energy Materials and Solar Cells |
Volume | 94 |
Issue number | 10 |
DOIs | |
Publication status | Published - 2010 |
MoE publication type | A1 Journal article-refereed |
Keywords
- Gravure printing
- Organic photovoltaics
- Polymer solar cell
- Solution processing