本研究希望透過一系列的自組裝分子膜來達成對ITO的功函數調控，因此我們合成一系列能形成自組裝薄膜的分子，並透過不同儀器觀察這些分子成長在銦錫氧化物(ITO)上的狀態，及其表面性質的變化。
嵌入偶極概念的分子是我們受到Michael Zharnikov團隊的研究成果啟發[1-5]，該團隊對以硫醇為頭端基，於骨幹中嵌入帶有不同偶極方向的嘧啶(pyrimidine)，以形成一系列分子，並進行各種相關的研究，而我們合成的分子改以膦酸(phosphonic acid)為頭端基，嘗試用類似的結構拓展此概念，並使這系列的分子能更廣泛的應用於在各類金屬氧化物表面上，特別是現今常見的透明電極ITO上。我們希望透過自組裝的方式將分子連帶分子提供的偶極覆蓋至ITO的表面，以實現對ITO的功函數調控。
現今許多電子元件的研究中，人們已經會用自組裝單分子薄膜來改善接觸電阻與漏電流的問題，特別在有機的電子元件中，有機材料與無機材料可能由於相容性較差，導致界面接觸不好或疊加的材料的晶粒或晶相不符所需，而我們所合成的分子獨特的地方在於，有機會在改變材料界面接觸、功函數及費米能階等相關增進電子傳輸現象時，保持表面能一致，避免疊加的材料產生不同性質的變化，進而降低有機分子在元件中造成的變數。我們透過不同數量及位置的苯環與嘧啶，並以不同的條件形成自組裝分子薄膜，觀察不同分子成長在ITO基板上的狀態，以及對ITO表面性質的影響，希望人們以後在設計自組裝薄膜時，偶極可由骨幹單獨控制，使頭端基及尾端基皆可單獨服務特定之需求而不受彼此限制。

This study aims to control the work function of indium tin oxide (ITO) through self-assembled molecules. We synthesized a series of molecules with embedded dipoles, inspired by the research conducted by Michael Zharnikov's team[1-5], who embedded dipoles with different orientations of pyrimidine into molecule backbones, and utilized thiol anchoring on gold. In our work, we synthesized molecules with phosphoric acid as the headgroup, aiming to expand this concept with a similar structure and enable the application of these molecules on various metal oxide surfaces, particularly the commonly used transparent electrode, ITO.
In current electronic device research, self-assembled molecules are already being utilized to enhance contact resistance and reduce leakage current issues, particularly in organic electronic devices. The poor compatibility between organic and inorganic materials can lead to poor interface contacts or unsuitable grain size or crystal phase stacking. What makes our synthesized molecules unique is their ability to enhance electronic transmission phenomena by altering work function, while maintaining consistent surface energy. This approach mitigates variations caused by stacked materials and reduces the variability introduced by organic molecules in devices.
Our goal is to provide a framework for designing self-assembled molecules, where the dipoles can be independently controlled by the molecule backbone, allowing the headgroup and tailgroup to cater to specific requirements without mutual limitations.

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