Amphiphilic (Phthalocyaninato) (Porphyrinato) Europium Triple-Decker Nanoribbons with Air-Stable Ambipolar OFET Performance

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• 作者：Guang Lu ; Xia Kong ; Pan Ma ; Kang Wang ; Yanli Chen ; Jianzhuang Jiang
• 刊名：ACS Applied Materials & Interfaces
• 出版年：2016
• 出版时间：March 9, 2016
• 年：2016
• 卷：8
• 期：9
• 页码：6174-6182
• 全文大小：582K
• ISSN：1944-8252

文摘

An amphiphilic mixed (phthalocyaninato) (porphyrinato) europium(III) triple-decker complex [Pc(OPh)₈]Eu[Pc(OPh)₈]Eu[TP(C≡CCOOH)PP] (1) with potential ambipolar semiconducting HOMO and LUMO energy levels has been designed, synthesized, and characterized. The OFET devices fabricated by quasi-Langmuir-Shäfer (QLS) technique at the air/water interface with nanoparticle morphology display hole mobility of 7.0 × 10^–7 cm² V^–1 s^–1 and electron mobility of 7.5 × 10^–7 cm² V^–1 s^–1, which reflects its ambipolar semiconducting nature. However, the performance of the devices fabricated via a “phase-transfer” method from n-hexane with one-dimensional nanoribbon morphology was significantly improved by 3–6 orders of magnitude in terms of hole and electron mobilities, 0.11 and 4 × 10^–4 cm² V^–1 s^–1, due to the enhanced π–π interaction in the direction perpendicular to the tetrapyrrole rings associated with the formation of a dimeric supramolecular structure building block depending on the intermolecular hydrogen bonding between the neighboring triple-decker molecules in the one-dimensional nanoribbons.