Nanocrystal Growth and Improved Performance of Small Molecule Bulk Heterojunction Solar Cells Composed of a Blend of Chloroaluminum Phthalocyanine and C70

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概要

• 論文の詳細を見る

• Improved performance from organic bulk heterojunction (BHJ) solar cells composed of a blend of chloroaluminum phthalocyanine (ClAlPc) and fullerene C70 is demonstrated. The deep highest occupied molecular orbital of ClAlPc and the broad absorption of C70 lead to a high open-circuit voltage and a high short-circuit current density ($J_{\text{SC}}$). A change in the intermolecular arrangement of ClAlPc is observed when the substrate is heated to 370--390 K during deposition of the blend layer, indicating the growth of $\pi$-stacked nanocrystals of ClAlPc. Consequently, $J_{\text{SC}}$ and the fill factor are enhanced significantly, and a high power conversion efficiency of 4.1% is obtained.

• 2010-12-25

著者

• Adachi Chihaya

  Life Bio Electromechanical Autonomous Nano Systems Center Kyushu Beans Laboratory

• Edura Tomohiko

  Life BEANS Center Kyushu (BEANS laboratory), Center for Organic Photonics and Electronics Research (OPERA), and Center for Future Chemistry, Kyushu University, Fukuoka 819-0035, Japan

• Harada Kentaro

  Life BEANS Center Kyushu (BEANS laboratory), Center for Organic Photonics and Electronics Research (OPERA), and Center for Future Chemistry, Kyushu University, Fukuoka 819-0035, Japan

関連論文

• Formation of Organic Nanodots with a Minimum Diameter of 40nm Using Conventional Vacuum Vapor Deposition
• Nanocrystal Growth and Improved Performance of Small Molecule Bulk Heterojunction Solar Cells Composed of a Blend of Chloroaluminum Phthalocyanine and C70

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