成果報告書詳細
管理番号20120000001053
タイトル*平成23年度中間年報 次世代グリーン・イノベーション評価基盤技術開発
公開日2012/9/21
報告書年度2011 - 2011
委託先名次世代化学材料評価技術研究組合
プロジェクト番号P10029
部署名電子・材料・ナノテクノロジー部
和文要約1.研究開発の内容及び成果等
まえがき
有機エレクトロニクス産業を発展させるためには、絶えず高性能な化学材料を供給できる体制を整えることが必要である。有機エレクトロニクス材料の性能が、デバイスメーカーと材料メーカーの双方に有用でかつ共通的な基盤に立脚して評価できるようになれば、両者にとって信頼関係をより迅速に築くことができ、デバイスメーカー側が材料メーカーに求める高性能材料の開発の方向性も明確にできる。
英文要約Title: Project on Research and Evaluation for Next-Generation Green Innovation (FY2010-FY2012) FY2011 Annual Report
 The major target of the project is establishment of standard evaluation cells and evaluation basis for the purpose of ensuring lifetime and performance of organic electronic devices.
 For one of the “reference OLED cells”, which is used for the standard evaluation technology, a monocolor green OLED has been developed. By using the same device structure and component materials, reference cells were fabricated and their device performances were evaluated in four different research organizations. Further, the evaluation standard manual book, the first tentative draft was prepared.
Facilities for research environment control (clean room), vacuum-sublimation cell fabrication, and wet-process cell fabrication have been introduced and installed. For the first step, major technological issues in cell fabrication processes have been extracted.
 Assuming the situations of OLED cells installed in commercial products, specifically illumination applications, the development of evaluation methods for device performance and lifetime has been performed as a joint work by Yamagata University and CEREBA Research Base. A cell fabrication facility useful for so-called multi-photon type cells was introduced in Yamagata University. Assuming the analyses and evaluations for installed OLED cells for application, bottom emission type white color OLEDs were fabricated and their performance was evaluated, and issues needed for the establishment of white color reference cells were extracted.
For the purpose of extracting key issues for the establishment of quantitative evaluation technologies for OLEDs, impedance spectroscopic technology, surface-plasmon resonance technology, nonlinear optical sum-frequency generation spectroscopy, and optical simulation technology have been examined. As for the impedance spectroscopy, key problems related with simultaneous measurements of IVL measurements and impedance spectroscopy were extracted and solved. Nonlinear optical sum-frequency generation spectroscopy was applied to the reference OLED cells and vibrational spectra originated from organic layers or interface regions between organic layers were successfully observed.
A join work by Kyushu group and CEREBA have been performed. A vacuum sublimation facility was introduced in the Kyushu group and the reference OLED cells using the same cell configuration and materials were fabricated. The device performance fabricated at the facilities in the Kyushu group was compared with those obtained in CEREBA, and good correspondence was found.
Two representative evaluation apparatus for the gas barrier characteristics have been introduced. Five gas-barrier evaluation technologies based on different principles have been compared, and important issues related with difference in evaluation principles were extracted. Numerical simulations on water vapor permeation process about model barrier films were performed, and key factors controlling water permeability were elucidated.
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