ACS Applied Materials & Interfaces 2011-01-01

Formation of organic crystalline nanopillar arrays and their application to organic photovoltaic cells.

Masaya Hirade, Hajime Nakanotani, Masayuki Yahiro, Chihaya Adachi

Index: ACS Appl. Mater. Interfaces 3(1) , 80-3, (2011)

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Abstract

To enhance the performance of organic photovoltaic (OPV) cells, preparation of organic nanometer-sized pillar arrays is fascinating because a significantly large area of a donor/acceptor heterointerface having continuous conduction path to both anode and cathode electrodes can be realized. In this study, we grew cupper phthalocyanine (CuPc) crystalline nanopillar arrays by conventional thermal gradient sublimation technique using a few-nanometer-sized trigger seeds composed of a CuPc and 3,4,9,10-perylene-tetracarboxylic-dianhydride (PTCDA) stacked layer. We optimized the pillar density by tuning crystal growth condition in order to apply it to OPV cells.

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