Abstract
The photo-reflectance and laser-ablation properties ofa part of an organic solar cell, a perylene derivative and the phthalocyanine (denoted as PV/H 2 Pc) were investigated. The reflectance ofa PV/H 2 Pc bilayerwas higher than the single layer samples of H 2 Pc and PV. Considering the photovoltaic effect in the corresponding solar cell and chemically doped perylene, the present reflection was characterized to be the photo-generated carrier in the PV layer. The present property can be classified into organic reflectance-tunable material, and is useful as a coating material to realize uniform laser ablation. A remarkable difference was observed in laser ablation ofpolystyrene film, in comparison with that of the PV/H 2 Pc bilayer, when 1060 nm laser incident took place on the coating material. Without the coating the laser pulse formed a spiky structure as a trace ofself-focusing, while for the coated film the ablation trace was from the upstream on the axis without a spiky structure. These phenomena are advantageous for the targets of direct-driven inertial fusion energy.
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