成果報告書詳細
管理番号20110000000596
タイトル*平成22年度中間年報 最先端研究開発支援プログラム/低炭素社会に資する有機系太陽電池の開発/サブテーマ1・3・5・9・11
公開日2011/7/28
報告書年度2010 - 2010
委託先名国立大学法人東京大学
プロジェクト番号P09026
部署名新エネルギー部
和文要約和文要約等以下本編抜粋:1.研究開発の内容及び成果等 「低炭素社会実現に資する有機系太陽電池の開発」プロジェクトは、次世代低コスト太陽電池の本命である有機系太陽電池を産官学のオールジャパン体制で開発し、太陽光発電の導入加速と世界市場獲得を目指して実施する。そのため、開発期間中に有機系太陽電池の耐久性向上と変換効率向上を図ると共に、国際標準化を積極的に進める。色素増感太陽電池の開発目標は、耐久性向上と変換効率向上であり、基礎に遡って要素技術を開発する。
英文要約Title: Funding Program for World-Leading Innovative R&D on Science and Technology (FIRST program). Development of Organic Photovoltaics toward a Low-Carbon Society: Pioneering Next Generation Solar Cell Technologies and Industries via Multi-manufacturer Cooperation (FY2010-FY2011) FY2010 Annual Report
In this project, development of organic photovoltaics is performed on the basis of the all-Japan regime to accelerate the popularization of photovoltaics and to acquire a worldwide market. Following sub-theme researches have been performed at the University of Tokyo, Toin University of Yokohama, Kyushu Institute of Technology, and Sony Co. Ltd. The sub-theme 1 is the fundamental research about new concepts, new materials, and new structures for practical organic photovoltaics. Item 1-1 is the development of highly-durable organic photovoltaics. In order to improve the durability of dye-sensitized solar cells (DSSCs), the electrolyte with nano-clay powder was examined to afford successfully high performance DSSCs. In order to develop organic-inorganic hybrid solar cells, novel polythiophene derivatives have been synthesized and found to cover TiO2 surface, resulting to afford efficient polymer-sensitized solar cells. Item 1-2 is the improvement of photoelectric conversion efficiency of organic photovoltaics: development of novel organic dyes with photo-absorption at long wavelengths. Ethynyl-linked porphyrin dimers and trimers, donor-acceptor-type porphyrins, and ring-fused porphyrin dimers have been examined. Novel Ru complex dyes, such as Ru complexes with iminopyridine ligands, terpyridine-Ru complexes with a phosphine derivative ligand, have been investigated, and Jsc (26.8 mA/cm2) with the highest value among organic photovoltaics was achieved. Item 1-3: the development of rechargeable solar cells, and item 1-4: the establishment of international standard for organic photovoltaics have been also performed. The sub-theme 3 is the development of highly-efficient solar cells using organic-inorganic hybrid junction. In this year, item 3-1: structural design of hybrid-type cell has been performed. Lead halide perovskite nanocrystals have been synthesized as inorganic sensitizers and the methods to prepare nanoporous semiconductor films were optimized. The sub-theme 5 is the basic science for organic photovoltaics by theoretical chemistry. For example, recombination in DSSCs with direct injection is cast as internal conversion in the dye-Ti(OH)2 complex. For catechol-thiophene dyes, the complex reproduces the previously observed dye-to-semiconductor bands. The sub-theme 9 is the confirmation of the function of TCO-less tandem DSSCs. In this year, item 9-1: development of solar cell unit has been performed, especially on the optimization of the unit cell structure using titania/dye complex electrode. Vertical 3D-structure of electrode, materials for porous cubic electrode, and quasi-solid electrolyte sheets have been optimized. The sub-theme 11 is the development of elemental techniques for the improvement of efficiency of DSSCs. For item 11-1: development of materials and module preparation, several materials have been investigated and facilities for their evaluation have been installed. In item 11-2, things have been prepared for the field test.
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