Plasmon-exciton nanostructures based on 2D semiconductor nanocrystals for near-infrared photonics
基于二维半导体纳米晶体的等离子激子纳米结构,用于近红外光子学
基本信息
- 批准号:516659368
- 负责人:
- 金额:--
- 依托单位:
- 依托单位国家:德国
- 项目类别:Research Grants
- 财政年份:
- 资助国家:德国
- 起止时间:
- 项目状态:未结题
- 来源:
- 关键词:
项目摘要
In this project we will develop novel hybrid plasmonic‒excitonic nanostructures active in the near-infrared (NIR) region. As a material platform for the fabrication of these composite structures we choose copper chalcogenide (Cu2‒xA, where x = 0–1 and A = S, Se or Te) two dimensional (2D) nanocrystals. Our selection relies on polymorphism of Cu2‒xA which exhibits a range of different stoichiometries adapting various crystal phases and a feasibility of chemical transformations of these nanocrystals via cation exchange.The project will combine the following two main parts: 1) development of a direct colloidal synthesis of semiconductor Cu2‒xA 2D nanomaterials with well controlled dimensions and crystal structure and their chemical transformations via cation exchange reactions into semiconductor 2D metal chalcogenides, such as CdA, PbA, HgA, and Ag2A, including their hetero-structures; 2) fabrication of composite fluorescent‒plasmonic materials in the form of planar layered assemblies and investigation of interactions between the layers using advanced optical spectroscopy techniques. Degrees of compositional and structural manipulation of the 2D materials targeted in this project will go far beyond the existing state-of-the-art methods for their direct wet chemical synthesis as well as chemical vapor deposition or exfoliation. Control of their structure and composition is a key to the precise engineering of their optoelectronic properties. From practical point of view, the combination of semiconductor nanocrystals with high absorption coefficients and high photoluminescence quantum yields and nanoparticles with a strong plasmon resonance is promising for the improvement of the efficiency of optoelectronic devices. Such a concept is of great importance for the NIR region, where a high efficiency is difficult to achieve. The lack of synthetic protocols for the synthesis of NIR-active copper, lead, mercury, and silver chalcogenide 2D nanomaterials on one hand, and practically not investigated yet interactions between plasmonic and excitonic structures in the NIR region on the other, motivate us to pursue these goals. The work plan of the project is assigned to a doctoral researcher supported by two student assistants.This work is expected to have impact not only on the fundamentals of chemistry of colloidal 2D semiconductor nanomaterials and their synthetic methodology, but also to provide a range of various materials with a well-defined application potential. The resulting materials and structures with tunable photophysical properties will be very promising candidates for applications in solar cells, luminescent solar concentrators, LEDs, and photodetectors.
在这个项目中,我们将开发新的混合等离子激子纳米结构在近红外(NIR)区域的活性。作为用于制造这些复合结构的材料平台,我们选择铜硫属化物(Cu 2 + xA,其中x = 0-1且A = S、Se或Te)二维(2D)纳米晶体。我们的选择依赖于Cu 2-xA的多晶型,它表现出一系列不同的化学计量,适应各种晶相,以及这些纳米晶体通过阳离子交换进行化学转化的可行性。该项目将联合收割机以下两个主要部分:第一章开发了具有良好控制的尺寸和晶体结构的半导体Cu 2 + xA 2D纳米材料的直接胶体合成及其通过阳离子交换的化学转化反应成半导体2D金属硫族化物,例如CdA、PbA、HgA和Ag 2A,包括它们的异质结构; 2)以平面分层组件的形式制造复合荧光等离子体材料,并使用先进的光谱技术研究层之间的相互作用。该项目中目标2D材料的成分和结构操纵程度将远远超出现有的直接湿化学合成以及化学气相沉积或剥离的最先进方法。控制它们的结构和组成是精确设计其光电性能的关键。从实用的角度来看,具有高吸收系数和高光致发光量子产率的半导体纳米晶体与具有强等离子体共振的纳米颗粒的组合对于提高光电器件的效率是有希望的。这种概念对于近红外区域非常重要,在该区域难以实现高效率。一方面,缺乏用于合成NIR活性铜、铅、汞和银硫族化物2D纳米材料的合成方案,另一方面,实际上尚未研究NIR区域中等离子体和激子结构之间的相互作用,这促使我们追求这些目标。该项目的工作计划分配给一名博士研究员,由两名学生助理提供支持。这项工作预计不仅对胶体2D半导体纳米材料的化学基础及其合成方法产生影响,而且还将提供一系列具有明确应用潜力的各种材料。所得到的材料和结构具有可调的光物理性能,将是非常有前途的候选人在太阳能电池,发光太阳能聚光器,发光二极管和光电探测器的应用。
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
数据更新时间:{{ journalArticles.updateTime }}
{{
item.title }}
{{ item.translation_title }}
- DOI:
{{ item.doi }} - 发表时间:
{{ item.publish_year }} - 期刊:
- 影响因子:{{ item.factor }}
- 作者:
{{ item.authors }} - 通讯作者:
{{ item.author }}
数据更新时间:{{ journalArticles.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ monograph.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ sciAawards.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ conferencePapers.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ patent.updateTime }}
Dr. Vladimir Lesnyak其他文献
Dr. Vladimir Lesnyak的其他文献
{{
item.title }}
{{ item.translation_title }}
- DOI:
{{ item.doi }} - 发表时间:
{{ item.publish_year }} - 期刊:
- 影响因子:{{ item.factor }}
- 作者:
{{ item.authors }} - 通讯作者:
{{ item.author }}
{{ truncateString('Dr. Vladimir Lesnyak', 18)}}的其他基金
Low-toxic quantum dots with modulated light emission in the near infrared region
在近红外区域具有调制光发射的低毒量子点
- 批准号:
326707061 - 财政年份:2017
- 资助金额:
-- - 项目类别:
Research Grants
相似国自然基金
半导体中激子的量子非线性光学的研究
- 批准号:10474025
- 批准年份:2004
- 资助金额:25.0 万元
- 项目类别:面上项目
相似海外基金
Harnessing the Advantages of Dark Exciton in Perovskite Nanostructures as the Quantum Emitter and the Source of Charge Carriers
利用钙钛矿纳米结构中暗激子的优势作为量子发射器和电荷载流子源
- 批准号:
2304936 - 财政年份:2023
- 资助金额:
-- - 项目类别:
Standard Grant
Study and control of long-range exciton transport in organic and hybrid nanostructures for future exciton-based electronics
研究和控制有机和混合纳米结构中的长程激子输运,用于未来基于激子的电子产品
- 批准号:
21K18927 - 财政年份:2021
- 资助金额:
-- - 项目类别:
Grant-in-Aid for Challenging Research (Exploratory)
Exciton and carrier dynamics in indirect-band-gap semiconductor nanostructures with a type-I band alignment
具有 I 型能带排列的间接带隙半导体纳米结构中的激子和载流子动力学
- 批准号:
409810106 - 财政年份:2019
- 资助金额:
-- - 项目类别:
Research Grants
Interaction of exciton, carrier and dangling bond spins in colloidal nanostructures (B01)
胶体纳米结构中激子、载流子和悬挂键自旋的相互作用 (B01)
- 批准号:
269910129 - 财政年份:2015
- 资助金额:
-- - 项目类别:
CRC/Transregios
Exciton and photon dynamics in nanostructures
纳米结构中的激子和光子动力学
- 批准号:
194149-2010 - 财政年份:2014
- 资助金额:
-- - 项目类别:
Discovery Grants Program - Individual
Exciton and photon dynamics in nanostructures
纳米结构中的激子和光子动力学
- 批准号:
194149-2010 - 财政年份:2013
- 资助金额:
-- - 项目类别:
Discovery Grants Program - Individual
Exciton and photon dynamics in nanostructures
纳米结构中的激子和光子动力学
- 批准号:
194149-2010 - 财政年份:2012
- 资助金额:
-- - 项目类别:
Discovery Grants Program - Individual
Exciton and photon dynamics in nanostructures
纳米结构中的激子和光子动力学
- 批准号:
194149-2010 - 财政年份:2011
- 资助金额:
-- - 项目类别:
Discovery Grants Program - Individual
Femtosecond transient x-ray investigation of exciton and charge transfer dynamics in semiconductor nanostructures
半导体纳米结构中激子和电荷转移动力学的飞秒瞬态 X 射线研究
- 批准号:
1042013 - 财政年份:2010
- 资助金额:
-- - 项目类别:
Standard Grant
Exciton and photon dynamics in nanostructures
纳米结构中的激子和光子动力学
- 批准号:
194149-2010 - 财政年份:2010
- 资助金额:
-- - 项目类别:
Discovery Grants Program - Individual