EFFICIENT PHOSPHORESCENCE IN SELF-ORGANIZED ORGANIC-INORGANIC SUPERLATTICES AND TTS APPLICATION TO LIGHT EMITTING DEVICE

自组织有机-无机超晶格中的高效磷光及其在发光器件中的应用

• 批准号: 14350011
• 负责人: ERA Masanao
• 金额: $ 5.44万
• 依托单位: Saga University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2002
• 资助国家: 日本
• 起止时间: 2002 至 2003
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-14350011/
• 关键词: ORGANIC-INORGANIC SUPERLATTICE; NANOHYBRID; PHOSPHORESCENCE; ENERGY TRANSFER; ELECTROLUIVIINESCENCE; 有機-無機複合超格子; 燐光発光; 電界発光素子

This project was conducted toward efficient electrophosphorescence devices combined with a self-organized superlattice materials, lead halide-based layered peorvksite, and organic semiconductors. The results of this project are summarized as follows.1.From transient photoluminescence measurement for lead bromide-based layered perovskites, which were prepared with aminoalkylnaphthalenes, enhance phosphorescence due to naphthalene chromophore in the layered perovskite was demonstrated to be caused by efficient energy transfer (Dexter-type) from exciton in the lead bromide semiconductor layer to, triplet excited state of the naphthalene chromophore.2.The following new layered perovskites were successfully prepared, layered perovskites having 1)bifunctional chromophore combined triplet-sensitized benzophenone choromophore and emissive chromophore, 2)hole-transporting and emissive carbazole chromophore, and 3)p-conjugated polymers. Further, phosphorescence was observed in the new layered perovskites.3.We successfully prepared lead halide-based layered perovskite thin films with emissive chromophores by using the Langmuir-Blodgett technique.4.Electro phosphorescence was successfully observed in the try-layered device combined with the phosphorescent layered perovskite, electron-transporting oxadiazole, and hole-transporting copper phthalocyanine.5.We found new organic-inorganic nanohybride as emissive material. The nanohybride was prepared by simaultaneous deposition. of organic semiconductor and rare-earth metal. In organic electroluminescent device using the nanohybrids, fairly efficient blue, green, red electoroluminescence was observed.

该项目是针对与自组织超晶格材料、卤化铅基层状磷铁矿和有机半导体相结合的高效电致磷光器件进行的。本项目的研究结果总结如下：1.通过对用氨烷基萘制备的溴化铅基层状钙钛矿的瞬态光致发光测量，证明层状钙钛矿中的萘发色团增强了磷光，这是由于高效的能量传递引起的（德克斯特型）从溴化铅半导体层中的激子到萘发色团的三重激发态。2.成功地制备了以下新的层状钙钛矿，层状钙钛矿，其具有1）结合了三重态敏化的二苯甲酮发色团和发射发色团的双官能发色团，2）空穴传输和发射咔唑发色团，和3）p-共轭聚合物。3.利用Langmuir-Blodgett技术成功地制备了具有发色团的卤化铅基层状钙钛矿薄膜; 4.将层状钙钛矿磷光体、电子传输性恶二唑、发现了新型的有机-无机纳米杂化材料作为发光材料。通过同时沉积制备纳米杂化物。有机半导体和稀土金属。在有机电致发光器件中，观察到相当有效的蓝色、绿色、红色电致发光。

项目成果

Yushi Oishi: "Morphological and optical studies for a multi component monolayer of cyanine dye and fatty acid"Thin Solid Films. 438-439. 44-47 (2003)

Yushi Oishi：“花青染料和脂肪酸多组分单层的形态和光学研究”固体薄膜。

Yasuyuki Gotou, Izumi Kakinoki, Mitsuharu Noto, Masanao Era: "Efficient polarized blue electroluminescent device using oriented p-sexiphenyl thin film"Current Applied Physics. (in press).

Yasuyuki Gotou、Izumi Kakinoki、Mitsuharu Noto、Masanao Era：“使用定向对六苯基薄膜的高效偏振蓝色电致发光器件”当前应用物理学。

Masanao Era, Satoe Yoneda, Takahiro Sano, Mitsuharu Noto: "Preparation of amphiphilic poly(thiophene)s and their application to construct an organic-inorganic superlattice"Thin Solid Films. (in press).

Masanao Era、Satoe Yoneda、Takahiro Sano、Mitsuharu Noto：“两亲性聚噻吩的制备及其在构建有机-无机超晶格中的应用”固体薄膜。

Masanao Era: "Formation of PbBr-based layered perovskite structure having poly(thiophene) as organic laver by soaking thin film of hydrogen bromide salt of poly(3-aminododecyltfiiophene) in aqueous lead bromide solution."Chemistry Letters. 32・3. 272-273 (

Masanao Era：“通过将聚（3-氨基十二烷基噻吩）的溴化氢盐薄膜浸泡在溴化铅水溶液中形成具有聚（噻吩）的基于 PbBr 的层状钙钛矿结构。”化学快报 32・3。 -273（

Masanao Era: "Formation of PbBr-based layered perovskite structure having poly(thiophene) as organic layer-by soaking thin film of hydrogen bromide salt of poly(3-aminododecylthiophene) in aqueous lead bromide solution."Chemistry Letters. Vol.32. 272-283

Masanao Era：“通过将聚（3-氨基十二烷基噻吩）的溴化氢盐薄膜浸泡在溴化铅水溶液中，形成具有聚（噻吩）作为有机层的基于 PbBr 的层状钙钛矿结构。”化学快报。