Electroluminescent metal oxide quantum dot devices for sustainable solid state lighting technologies****

用于可持续固态照明技术的电致发光金属氧化物量子点器件****

基本信息

批准号：
521224-2018
负责人：
Radovanovic, Pavle
金额：
$ 21.18万
依托单位：
University of Waterloo
依托单位国家：
加拿大
项目类别：
Strategic Projects - Group
财政年份：
2018
资助国家：
加拿大
起止时间：
2018-01-01 至 2019-12-31
项目状态：
已结题

来源：
https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=662858
关键词：
Electroluminescent metal oxide quantum dot

项目摘要

General lighting accounts for more than 20 percent of the word's total electricity production, and is responsible for ca. 1.9 gigatones of carbon dioxide emission. Commercial and industrial sectors, which together constitute over 60 % of the overall lighting demand, are seeking safer, more efficient, and longer lasting alternatives to traditionally used halogen and fluorescent sources. Although solid-state lighting is seen as the long-term solution, its broader adoption in these market segments is hampered by comparatively high cost, which is partly caused by the use of strategically deficient and/or environmentally harmful elements, as well as by the design and manufacturing complexity. In partnership with two Canadian companies, Metalumen Manufacturing and OTI Lumionics, the goal of this project is to develop novel solid state lighting technologies based on robust, environmentally benign, and earth-abundant metal oxide quantum dots. Using a combination of steady-state and time-resolved spectroscopies at the ensemble and single nanostructure levels, together with theoretical modelling, we will elucidate the origin of the photoluminescence properties of these nanostructures arising from the presence of native defects. We will apply the findings of this fundamental investigation for the rational design and synthesis of novel luminescent metal oxide quantum dots with the desired spectral properties. The optimized metal oxide quantum dots will subsequently be used as electroluminescent components in novel light emitting devices that can be fabricated using simple solution coating and vacuum deposition techniques, with the potential to lower manufacturing costs. The ability to induce energy transfer in hybrid metal oxide nanoconjugates and externally manipulate defect interactions in individual nanocrystals will be used to generate white light with desired characteristics (chromaticity, correlated colour temperature, and colour rendering index) and ultimately achieve dynamic tuning of the light output. Successful realization of this project will generate new efficient and sustainable lighting technologies which will improve Canada's competitiveness, and open new market opportunities for our industrial partners.********

一般照明占该词总发电量的20％以上，并负责CA。 1.9二氧化碳排放的吉隆酮。商业和工业部门共同占整体照明需求的60％以上，他们寻求更安全，更高效且更长的持久替代品，用于传统使用的卤素和荧光源。尽管固态照明被视为长期解决方案，但其在这些市场领域的广泛采用受到相对较高的成本的阻碍，这部分是由于使用战略性不足和/或环境有害的元素以及设计和制造的复杂性所致。与两家加拿大公司（Metalumen Manufacturing and Oti Lumionics）合作，该项目的目的是基于强大的，环境良性和富含地球的金属氧化物量子点开发新型的固态照明技术。通过在集合和单个纳米结构水平上的稳态和时间分辨光谱的组合，以及理论建模，我们将阐明这些纳米结构的光致发光特性的起源，这些纳米结构是由天然缺陷的存在引起的。我们将将这一基本研究的发现应用于具有所需光谱特性的新型发光金属氧化物点的合理设计和合成。优化的金属氧化物量子点随后将用作新型的发光设备中的电致电组件，可以使用简单的溶液涂层和真空沉积技术制造，并有可能降低制造成本。诱导杂交金属氧化物纳米偶联物中的能量转移和单个纳米晶体中外部操纵缺陷相互作用的能力将用于生成具有所需特性（色度，相关色温和色彩温度和色彩渲染索引）的白光，并最终实现光输出的动态调整。该项目的成功实现将产生新的高效和可持续的照明技术，这将提高加拿大的竞争力，并为我们的工业合作伙伴开放新的市场机会。****************************************************************************************