Coupled Organic-Inorganic Nanostructures: From Tailored Electronic Properties to Carrier-Selective Transport and Optoelectronic Devices

耦合有机-无机纳米结构：从定制电子特性到载流子选择性传输和光电器件

• 批准号: 282208125
• 负责人: Professor Dr. Wolfgang Brütting
• 金额: --
• 依托单位: Institut für Physikalische und Theoretische Chemie
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2016
• 资助国家: 德国
• 起止时间: 2015-12-31 至 2020-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/282208125?language=en
• 关键词: Coupled; Organic; Inorganic; Nanostructures; Tailored

The outstanding physical properties of shape- and size-controlled nanoparticles are already being exploited for commercially available technologies: HD-televisions with unprecedented color depth on the basis of CdSe nanoparticles, printable lead sulfide quantum dot solar cells with power conversion efficiencies > 8 % and flexible transistors made from chalcogenidometalate-functionalized nanoparticles are only a few examples. Essentially, all of the above mentioned technological advances were realized due to a deepened understanding of the electronic coupling between adjacent nanoparticles and the tailored manipulation of the nanoparticles ligand sphere. Upon applying short-chained molecules to functionalize the nanoparticles surfaces, the mean particle-particle distance is drastically reduced which improves the electric functionality of ensembles of such nanoparticles and the performance of the devices in which they are applied. However, this strategy often requires hazardous substances like hydrazine which restricts large-scaleapplications. Moreover, the prospects of further improvements are limited as the most developed protocols in pursue of this conceptalready apply mono-atomic ligands, such that even shorted particleparticle distances are unlikely. Our project addresses this issue and provides a different approach to coupled nanoparticle solids: We apply organic semiconductor molecules which bear an importantadvantage over the short ligand strategy: Due to their distinct electronic structure, these molecules themselves are conductive suchthat they can provide a channel for electric transport between adjacent nanoparticles. By functionalizing the nanoparticles surfaceswith such molecules, we seek to explore the prospects of this novel strategy in the fabrication of optoelectronic devices

形状和尺寸可控的纳米颗粒的出色物理特性已经被用于商业技术：基于CdSe纳米颗粒的具有前所未有的色彩深度的高清电视、功率转换效率> 8%的可印刷硫化铅量子点太阳能电池以及由硫属元素化的纳米颗粒制成的柔性晶体管只是几个例子。基本上，所有上述技术进步都是由于对相邻纳米粒子之间的电子耦合的深入理解和对纳米粒子配体球的定制操作而实现的。在施加短链分子以使纳米颗粒表面官能化时，平均颗粒-颗粒距离急剧减小，这改善了这种纳米颗粒的集合的电功能性和其中施加它们的装置的性能。然而，这种策略通常需要危险物质，如肼，限制了大规模应用。此外，进一步改进的前景是有限的，因为追求这一概念的最发达的协议已经应用了单原子配体，使得即使缩短粒子距离也是不可能的。我们的项目解决了这个问题，并提供了一种不同的方法来耦合纳米粒子固体：我们应用有机半导体分子，它比短配体策略具有重要的优势：由于它们独特的电子结构，这些分子本身是导电的，它们可以为相邻纳米粒子之间的电传输提供通道。通过对纳米粒子表面进行功能化修饰，我们试图探索这种新的策略在光电子器件制造中的前景

项目成果

Revealing Grain Boundaries and Defect Formation in Nanocrystal Superlattices by Nanodiffraction.

• DOI: 10.1002/smll.201904954
• 发表时间: 2019-04
• 期刊: Small
• 影响因子: 13.3
• 作者: N. Mukharamova;D. Lapkin;I. Zaluzhnyy;Alexander André;S. Lazarev;Young Yong Kim;M. Sprung;R. Kurta;F. Schreiber;I. Vartanyants;Marcus Scheele

Electron-Conducting PbS Nanocrystal Superlattices with Long-Range Order Enabled by Terthiophene Molecular Linkers.

• DOI: 10.1021/acsami.8b06044
• 发表时间: 2018-07
• 期刊: ACS applied materials & interfaces
• 影响因子: 9.5
• 作者: Alexander André;Michelle Weber;K. Wurst;S. Maiti;F. Schreiber;Marcus Scheele

Coupled Organic-Inorganic Nanostructures with Mixed Organic Linker Molecules.

具有混合有机连接分子的耦合有机-无机纳米结构

• DOI: 10.1021/acsami.1c08614
• 发表时间: 2021
• 期刊: ACS applied materials & interfaces
• 影响因子: 9.5
• 作者: Grassl;Ullrich;Mansour;Abdalbaqi;Scheele;Brütting
• 通讯作者: Brütting

Electronically Coupled, Two-Dimensional Assembly of Cu1.1S Nanodiscs for Selective Vapor Sensing Applications

• DOI: 10.1021/acs.jpcc.8b05276
• 发表时间: 2018-09
• 期刊: The Journal of Physical Chemistry C
• 作者: S. Maiti;S. Maiti;Yvonne Joseph;A. Wolf;W. Brütting;Dirk Dorfs;F. Schreiber;Marcus Scheele

Understanding the Formation of Conductive Mesocrystalline Superlattices with Cubic PbS Nanocrystals at the Liquid/Air Interface

• DOI: 10.1021/acs.jpcc.8b11518
• 发表时间: 2019-01-17
• 期刊: JOURNAL OF PHYSICAL CHEMISTRY C
• 影响因子: 3.7
• 作者: Maiti, Santanu;Maiti, Sonam;Scheele, Marcus
• 通讯作者: Scheele, Marcus