末端炔類有機盤狀分子之合成與經由點擊化學應用於電極表面修飾

近年來，電荷傳輸材料已被廣泛地應用在有機的電子及光電元件上，以奈米尺寸發展此種具有分子自組裝(self-assembled monolayers, SAMs)能力之薄膜基版更是微型化元件的關鍵。回顧相關技術之應用顯示出盤狀液晶分子例如hexa-peri-hexabenzocoronenes (HBCs)是一極為有趣之材料，其中心芳香環部份具有較大的共軛面積，除了可自組裝堆疊成管柱結構之外，管柱一維方向擁有相當高的電荷遷移率。因此，我們設計出末端帶有乙炔官能基之HBC分子，希望在預先處理並帶有疊氮(-N3)官能基的基板表面上進行click-chemistry (速配組合式化學、點擊化學)，利用共價鍵之形式將HBC分子鑲嵌於基板表面，除了藉此製作出分子自組裝單層薄膜之外，利用分子設計進一步控制其排列方式為edge-on (homogeneous)或是face-on (homeotropic)。

關鍵字

盤狀材料分子；點擊化學；自組裝單層膜

並列摘要

Charge-transport materials have been utilized substantially in organic/flexible electronics and optoelectronics in recent years. A focus for miniaturization of electronic device is to develop electroactive self-assembled monolayer (SAM) templates on the active electrode surface. Reviewing these technical applications reveals that discotic liquid crystalline (DLC) materials such as hexa-peri-hexabenzocoronenes (HBCs) are interesting materials due to their unique self-organization behavior into columnar superstructure and large aromatic core permits one of the highest values for intrinsic charge carrier mobility for mesogenes. Therefore, the pre-fabricated functional surface containing azide groups can be covalently anchored through click-chemistry by newly designed acetylene-appended HBCs. These HBC derivatives not only possess the potential in the formation of SAM, but their alignment modes of edge-on (homogeneous) or face-on (homeotropic) could be controlled by tailor-made molecular design.

並列關鍵字

Discotic Materials ； Click Chemistry ； Self-Assembled Monolayer

參考文獻

11.Warman, J. M.; Craats, V. D.; Mol, A. M. Cryst. Liq. Cryst. 2003, 396

13.Scholl, R.; Seer, C.; Weitzenböck, R. Chem. Ber. 1910, 43,2202

15.Stabel, A.; Herwig, P.; Müllen, K.;Rabe, J. P. Angew. Chem. Int. Ed. Engl. 1995, 34, 1609

16.Iyer, V. S.; Wehmeier, M.; Brand, J. D.; Keegstra, M. A.; Müllen, K. Angew. Chem. Int. Ed. Engl. 1997, 36, 1604

17.Müller, M.; Iyer, V. S.; Kübel, C.; Enkelmann, V.; Müllen, K. Angew. Chem. Int. Ed. Engl. 1997, 36, 1607

國際替代計量

末端炔類有機盤狀分子之合成與經由點擊化學應用於電極表面修飾

全文下載

主題瀏覽