MXene–organic semiconductor blends for high-mobility printed organic electronic devices

用于高迁移率印刷有机电子器件的 MXeneâ 有机半导体混合物

• 批准号: 399684426
• 负责人: Professor Dr. Xinliang Feng
• 金额: --
• 依托单位: Univerza v Novi Gorici
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2018
• 资助国家: 德国
• 起止时间: 2017-12-31 至 2021-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/399684426?language=en
• 关键词: MXene; organic; semiconductor; blends; mobility

The proposed project will couple delocalized-state charge-carrier transport in MXenes and in state-of-the-art organic semiconductor crystals (OSCs) to realize high-speed electronic devices fabricated by printing of MXene/OSC blends. We will synthesize inks comprising MXenes and OSCs, which will allow us to print organic thin film transistors (OTFTs) on flexible substrates. We will explore novel OSCs based on the [1]benzothieno[3,2-b][1]benzothiophene (BTBT) and dinaphtho[2,3-b:2',3'-f]thieno[3,2-b]thiophene (DNTT) scaffolds. MXenes will be synthesized from the following compounds: Ti3AlC2, Nb2AlC, and V2AlC. All-printed OTFTs will comprise MXene/OSC-blend channels and MXene printed contacts. The mobility of the charge carriers in these devices will exceed 50 cm2/Vs and the Ion/Ioff ratio will reach values of 105. Towards this end, we will perform detailed multiscale characterization of morphological, structural, energetic, and transport properties of the blend layers fabricated by printing. The results will serve as input for theoretical modelling of the electronic properties at the microscopic interface environment of the MXene/OSC interfaces and charge transport through the MXene/OSC blend. The modelling results will, in turn, serve to optimize the protocol of synthesis of MXene/OSC blends and fabrication of OTFTs. Once the properties of the layers are optimized and thoroughly theoretically described, OTFTs will be printed and their fabrication protocol will be optimized to yield the highest possible mobility and on/off ratio. Throughout the project strong emphasis will be devoted to dissemination of the results via a variety of communication channels which will address audiences ranging from experts in the field, policymakers, young science-oriented individuals and general audience. The partners of the consortium cover all pertinent areas of the project. They include experts in the areas of: synthesis of advanced two-dimensional (2D) materials and high-mobility OSCs, theoretical modelling of electronic properties of 2D–material/OSC interfaces, and fabrication and characterization of advanced organic electronic devices. The project is highly complementary to the activities carried out within several Graphene Flagship work packages, i.e. WP1, WP3, WP9 and WP13, thus it will offer new ideas and inputs of wide interest to the Graphene Flagship endeavour.

该项目将耦合MXene和最先进的有机半导体晶体（OSC）中的离域态电荷载流子传输，以实现通过打印MXene/OSC混合物制造的高速电子器件。我们将合成包含MXene和OSC的墨水，这将使我们能够在柔性基板上打印有机薄膜晶体管（OTFT）。我们将探索基于[1]苯并噻吩并[3，2-B][1]苯并噻吩（BTBT）和二萘并[2，3-B：2 '，3'-f]噻吩并[3，2-B]噻吩（DNTT）支架的新型OSC。MXene将由以下化合物合成：Ti 3AlC 2、Nb 2AlC和V2 AlC。全印刷OTFT将包括MXene/OSC混合通道和MXene印刷触点。这些器件中的电荷载流子的迁移率将超过50 cm 2/Vs，并且Ion/Ioff比将达到105的值。为此，我们将进行详细的多尺度表征的形态，结构，能量和运输性能的混合层制造的印刷。结果将作为输入的MXene/OSC界面的微观界面环境和电荷传输通过MXene/OSC共混物的电子特性的理论建模。建模结果将反过来用于优化MXene/OSC共混物的合成和OTFT的制造的方案。一旦这些层的特性得到优化并在理论上得到充分描述，OTFT将被印刷，其制造协议将得到优化，以产生最高的迁移率和开/关比。在整个项目期间，将特别重视通过各种交流渠道传播成果，这些渠道将面向该领域的专家、决策者、年轻的科学工作者和普通观众。该联合体的合作伙伴涵盖项目的所有相关领域。他们包括以下领域的专家：先进二维（2D）材料和高迁移率OSC的合成，2D材料/OSC界面电子特性的理论建模，以及先进有机电子器件的制造和表征。该项目与石墨烯旗舰工作包（WP 1，WP 3，WP 9和WP 13）中开展的活动具有高度互补性，因此它将为石墨烯旗舰工作提供新的想法和投入。